mirror of git://gcc.gnu.org/git/gcc.git
818 lines
30 KiB
Java
818 lines
30 KiB
Java
/* java.lang.reflect.Field - reflection of Java fields
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Copyright (C) 1998, 2001, 2005, 2006 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package java.lang.reflect;
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import gnu.java.lang.ClassHelper;
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import gnu.java.lang.reflect.FieldSignatureParser;
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import java.lang.annotation.Annotation;
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/**
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* The Field class represents a member variable of a class. It also allows
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* dynamic access to a member, via reflection. This works for both
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* static and instance fields. Operations on Field objects know how to
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* do widening conversions, but throw {@link IllegalArgumentException} if
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* a narrowing conversion would be necessary. You can query for information
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* on this Field regardless of location, but get and set access may be limited
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* by Java language access controls. If you can't do it in the compiler, you
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* can't normally do it here either.<p>
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*
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* <B>Note:</B> This class returns and accepts types as Classes, even
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* primitive types; there are Class types defined that represent each
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* different primitive type. They are <code>java.lang.Boolean.TYPE,
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* java.lang.Byte.TYPE,</code>, also available as <code>boolean.class,
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* byte.class</code>, etc. These are not to be confused with the
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* classes <code>java.lang.Boolean, java.lang.Byte</code>, etc., which are
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* real classes.<p>
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*
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* Also note that this is not a serializable class. It is entirely feasible
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* to make it serializable using the Externalizable interface, but this is
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* on Sun, not me.
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*
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* @author John Keiser
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* @author Eric Blake <ebb9@email.byu.edu>
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* @author Per Bothner <bothner@cygnus.com>
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* @see Member
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* @see Class
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* @see Class#getField(String)
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* @see Class#getDeclaredField(String)
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* @see Class#getFields()
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* @see Class#getDeclaredFields()
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* @since 1.1
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* @status updated to 1.4
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*/
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public final class Field
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extends AccessibleObject implements Member
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{
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private Class declaringClass;
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private String name;
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// Offset in bytes from the start of declaringClass's fields array.
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private int offset;
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// The Class (or primitive TYPE) of this field.
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private Class type;
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static final int FIELD_MODIFIERS
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= Modifier.FINAL | Modifier.PRIVATE | Modifier.PROTECTED
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| Modifier.PUBLIC | Modifier.STATIC | Modifier.TRANSIENT
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| Modifier.VOLATILE;
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// This is instantiated by Class sometimes, but it uses C++ and
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// avoids the Java protection check.
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Field ()
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{
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}
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/**
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* Gets the class that declared this field, or the class where this field
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* is a non-inherited member.
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* @return the class that declared this member
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*/
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public Class<?> getDeclaringClass()
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{
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return declaringClass;
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}
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/**
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* Gets the name of this field.
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* @return the name of this field
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*/
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public native String getName();
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/**
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* Return the raw modifiers for this field.
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* @return the field's modifiers
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*/
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private native int getModifiersInternal();
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/**
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* Gets the modifiers this field uses. Use the <code>Modifier</code>
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* class to interpret the values. A field can only have a subset of the
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* following modifiers: public, private, protected, static, final,
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* transient, and volatile.
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*
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* @return an integer representing the modifiers to this Member
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* @see Modifier
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*/
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public int getModifiers()
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{
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return getModifiersInternal() & FIELD_MODIFIERS;
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}
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/**
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* Return true if this field is synthetic, false otherwise.
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* @since 1.5
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*/
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public boolean isSynthetic()
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{
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return (getModifiersInternal() & Modifier.SYNTHETIC) != 0;
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}
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/**
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* Return true if this field represents an enum constant,
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* false otherwise.
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* @since 1.5
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*/
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public boolean isEnumConstant()
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{
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return (getModifiersInternal() & Modifier.ENUM) != 0;
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}
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/**
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* Gets the type of this field.
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* @return the type of this field
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*/
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public native Class<?> getType();
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/**
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* Compare two objects to see if they are semantically equivalent.
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* Two Fields are semantically equivalent if they have the same declaring
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* class, name, and type. Since you can't creat a Field except through
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* the VM, this is just the == relation.
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*
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* @param o the object to compare to
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* @return <code>true</code> if they are equal; <code>false</code> if not
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*/
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public boolean equals (Object fld)
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{
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if (! (fld instanceof Field))
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return false;
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Field f = (Field) fld;
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return declaringClass == f.declaringClass && offset == f.offset;
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}
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/**
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* Get the hash code for the Field. The Field hash code is the hash code
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* of its name XOR'd with the hash code of its class name.
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*
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* @return the hash code for the object.
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*/
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public int hashCode()
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{
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return getDeclaringClass().getName().hashCode() ^ getName().hashCode();
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}
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/**
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* Get a String representation of the Field. A Field's String
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* representation is "<modifiers> <type>
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* <class>.<fieldname>".<br> Example:
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* <code>public transient boolean gnu.parse.Parser.parseComplete</code>
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*
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* @return the String representation of the Field
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*/
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public String toString ()
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{
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StringBuffer sbuf = new StringBuffer ();
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int mods = getModifiers();
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if (mods != 0)
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{
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Modifier.toString(mods, sbuf);
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sbuf.append(' ');
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}
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Method.appendClassName (sbuf, getType ());
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sbuf.append(' ');
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Method.appendClassName (sbuf, getDeclaringClass());
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sbuf.append('.');
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sbuf.append(getName());
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return sbuf.toString();
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}
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public String toGenericString()
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{
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StringBuilder sb = new StringBuilder(64);
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Modifier.toString(getModifiers(), sb).append(' ');
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sb.append(getGenericType()).append(' ');
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sb.append(getDeclaringClass().getName()).append('.');
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sb.append(getName());
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return sb.toString();
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}
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/**
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* Get the value of this Field. If it is primitive, it will be wrapped
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* in the appropriate wrapper type (boolean = java.lang.Boolean).<p>
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*
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* If the field is static, <code>o</code> will be ignored. Otherwise, if
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* <code>o</code> is null, you get a <code>NullPointerException</code>,
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* and if it is incompatible with the declaring class of the field, you
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* get an <code>IllegalArgumentException</code>.<p>
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*
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* Next, if this Field enforces access control, your runtime context is
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* evaluated, and you may have an <code>IllegalAccessException</code> if
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* you could not access this field in similar compiled code. If the field
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* is static, and its class is uninitialized, you trigger class
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* initialization, which may end in a
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* <code>ExceptionInInitializerError</code>.<p>
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*
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* Finally, the field is accessed, and primitives are wrapped (but not
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* necessarily in new objects). This method accesses the field of the
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* declaring class, even if the instance passed in belongs to a subclass
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* which declares another field to hide this one.
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*
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* @param o the object to get the value of this Field from
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* @return the value of the Field
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* @throws IllegalAccessException if you could not normally access this field
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* (i.e. it is not public)
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* @throws IllegalArgumentException if <code>o</code> is not an instance of
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* the class or interface declaring this field
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* @throws NullPointerException if <code>o</code> is null and this field
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* requires an instance
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* @throws ExceptionInInitializerError if accessing a static field triggered
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* class initialization, which then failed
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* @see #getBoolean(Object)
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* @see #getByte(Object)
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* @see #getChar(Object)
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* @see #getShort(Object)
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* @see #getInt(Object)
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* @see #getLong(Object)
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* @see #getFloat(Object)
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* @see #getDouble(Object)
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*/
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public Object get(Object obj)
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throws IllegalAccessException
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{
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return get(null, obj);
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}
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/**
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* Get the value of this boolean Field. If the field is static,
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* <code>o</code> will be ignored.
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*
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* @param o the object to get the value of this Field from
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* @return the value of the Field
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* @throws IllegalAccessException if you could not normally access this field
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* (i.e. it is not public)
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* @throws IllegalArgumentException if this is not a boolean field of
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* <code>o</code>, or if <code>o</code> is not an instance of the
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* declaring class of this field
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* @throws NullPointerException if <code>o</code> is null and this field
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* requires an instance
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* @throws ExceptionInInitializerError if accessing a static field triggered
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* class initialization, which then failed
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* @see #get(Object)
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*/
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public boolean getBoolean(Object obj)
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throws IllegalAccessException
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{
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return getBoolean(null, obj);
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}
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/**
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* Get the value of this byte Field. If the field is static,
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* <code>o</code> will be ignored.
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*
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* @param o the object to get the value of this Field from
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* @return the value of the Field
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* @throws IllegalAccessException if you could not normally access this field
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* (i.e. it is not public)
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* @throws IllegalArgumentException if this is not a byte field of
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* <code>o</code>, or if <code>o</code> is not an instance of the
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* declaring class of this field
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* @throws NullPointerException if <code>o</code> is null and this field
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* requires an instance
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* @throws ExceptionInInitializerError if accessing a static field triggered
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* class initialization, which then failed
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* @see #get(Object)
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*/
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public byte getByte(Object obj)
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throws IllegalAccessException
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{
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return getByte(null, obj);
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}
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/**
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* Get the value of this Field as a char. If the field is static,
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* <code>o</code> will be ignored.
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*
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* @throws IllegalAccessException if you could not normally access this field
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* (i.e. it is not public)
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* @throws IllegalArgumentException if this is not a char field of
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* <code>o</code>, or if <code>o</code> is not an instance
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* of the declaring class of this field
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* @throws NullPointerException if <code>o</code> is null and this field
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* requires an instance
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* @throws ExceptionInInitializerError if accessing a static field triggered
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* class initialization, which then failed
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* @see #get(Object)
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*/
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public char getChar(Object obj)
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throws IllegalAccessException
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{
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return getChar(null, obj);
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}
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/**
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* Get the value of this Field as a short. If the field is static,
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* <code>o</code> will be ignored.
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*
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* @param o the object to get the value of this Field from
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* @return the value of the Field
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* @throws IllegalAccessException if you could not normally access this field
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* (i.e. it is not public)
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* @throws IllegalArgumentException if this is not a byte or short
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* field of <code>o</code>, or if <code>o</code> is not an instance
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* of the declaring class of this field
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* @throws NullPointerException if <code>o</code> is null and this field
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* requires an instance
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* @throws ExceptionInInitializerError if accessing a static field triggered
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* class initialization, which then failed
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* @see #get(Object)
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*/
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public short getShort(Object obj)
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throws IllegalAccessException
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{
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return getShort(null, obj);
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}
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/**
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* Get the value of this Field as an int. If the field is static,
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* <code>o</code> will be ignored.
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*
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* @param o the object to get the value of this Field from
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* @return the value of the Field
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* @throws IllegalAccessException if you could not normally access this field
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* (i.e. it is not public)
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* @throws IllegalArgumentException if this is not a byte, short, char, or
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* int field of <code>o</code>, or if <code>o</code> is not an
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* instance of the declaring class of this field
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* @throws NullPointerException if <code>o</code> is null and this field
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* requires an instance
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* @throws ExceptionInInitializerError if accessing a static field triggered
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* class initialization, which then failed
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* @see #get(Object)
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*/
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public int getInt(Object obj)
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throws IllegalAccessException
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{
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return getInt(null, obj);
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}
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/**
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* Get the value of this Field as a long. If the field is static,
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* <code>o</code> will be ignored.
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*
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* @param o the object to get the value of this Field from
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* @return the value of the Field
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* @throws IllegalAccessException if you could not normally access this field
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* (i.e. it is not public)
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* @throws IllegalArgumentException if this is not a byte, short, char, int,
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* or long field of <code>o</code>, or if <code>o</code> is not an
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* instance of the declaring class of this field
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* @throws NullPointerException if <code>o</code> is null and this field
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* requires an instance
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* @throws ExceptionInInitializerError if accessing a static field triggered
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* class initialization, which then failed
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* @see #get(Object)
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*/
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public long getLong(Object obj)
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throws IllegalAccessException
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{
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return getLong(null, obj);
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}
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/**
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* Get the value of this Field as a float. If the field is static,
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* <code>o</code> will be ignored.
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*
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* @param o the object to get the value of this Field from
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* @return the value of the Field
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* @throws IllegalAccessException if you could not normally access this field
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* (i.e. it is not public)
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* @throws IllegalArgumentException if this is not a byte, short, char, int,
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* long, or float field of <code>o</code>, or if <code>o</code> is
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* not an instance of the declaring class of this field
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* @throws NullPointerException if <code>o</code> is null and this field
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* requires an instance
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* @throws ExceptionInInitializerError if accessing a static field triggered
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* class initialization, which then failed
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* @see #get(Object)
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*/
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public float getFloat(Object obj)
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throws IllegalAccessException
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{
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return getFloat(null, obj);
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}
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/**
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* Get the value of this Field as a double. If the field is static,
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* <code>o</code> will be ignored.
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*
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* @param o the object to get the value of this Field from
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* @return the value of the Field
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* @throws IllegalAccessException if you could not normally access this field
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* (i.e. it is not public)
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* @throws IllegalArgumentException if this is not a byte, short, char, int,
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* long, float, or double field of <code>o</code>, or if
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* <code>o</code> is not an instance of the declaring class of this
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* field
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* @throws NullPointerException if <code>o</code> is null and this field
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* requires an instance
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* @throws ExceptionInInitializerError if accessing a static field triggered
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* class initialization, which then failed
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* @see #get(Object)
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*/
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public double getDouble(Object obj)
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throws IllegalAccessException
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{
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return getDouble(null, obj);
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}
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private native boolean getBoolean (Class caller, Object obj)
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throws IllegalArgumentException, IllegalAccessException;
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private native char getChar (Class caller, Object obj)
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throws IllegalArgumentException, IllegalAccessException;
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private native byte getByte (Class caller, Object obj)
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throws IllegalArgumentException, IllegalAccessException;
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private native short getShort (Class caller, Object obj)
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throws IllegalArgumentException, IllegalAccessException;
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private native int getInt (Class caller, Object obj)
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throws IllegalArgumentException, IllegalAccessException;
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private native long getLong (Class caller, Object obj)
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throws IllegalArgumentException, IllegalAccessException;
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private native float getFloat (Class caller, Object obj)
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throws IllegalArgumentException, IllegalAccessException;
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private native double getDouble (Class caller, Object obj)
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throws IllegalArgumentException, IllegalAccessException;
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private native Object get (Class caller, Object obj)
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throws IllegalArgumentException, IllegalAccessException;
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/**
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* Set the value of this Field. If it is a primitive field, the value
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* will be unwrapped from the passed object (boolean = java.lang.Boolean).<p>
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*
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* If the field is static, <code>o</code> will be ignored. Otherwise, if
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* <code>o</code> is null, you get a <code>NullPointerException</code>,
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* and if it is incompatible with the declaring class of the field, you
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* get an <code>IllegalArgumentException</code>.<p>
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*
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* Next, if this Field enforces access control, your runtime context is
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* evaluated, and you may have an <code>IllegalAccessException</code> if
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* you could not access this field in similar compiled code. This also
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* occurs whether or not there is access control if the field is final.
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* If the field is primitive, and unwrapping your argument fails, you will
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* get an <code>IllegalArgumentException</code>; likewise, this error
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* happens if <code>value</code> cannot be cast to the correct object type.
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* If the field is static, and its class is uninitialized, you trigger class
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* initialization, which may end in a
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* <code>ExceptionInInitializerError</code>.<p>
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*
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* Finally, the field is set with the widened value. This method accesses
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* the field of the declaring class, even if the instance passed in belongs
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|
* to a subclass which declares another field to hide this one.
|
|
*
|
|
* @param o the object to set this Field on
|
|
* @param value the value to set this Field to
|
|
* @throws IllegalAccessException if you could not normally access this field
|
|
* (i.e. it is not public)
|
|
* @throws IllegalArgumentException if <code>value</code> cannot be
|
|
* converted by a widening conversion to the underlying type of
|
|
* the Field, or if <code>o</code> is not an instance of the class
|
|
* declaring this field
|
|
* @throws NullPointerException if <code>o</code> is null and this field
|
|
* requires an instance
|
|
* @throws ExceptionInInitializerError if accessing a static field triggered
|
|
* class initialization, which then failed
|
|
* @see #setBoolean(Object, boolean)
|
|
* @see #setByte(Object, byte)
|
|
* @see #setChar(Object, char)
|
|
* @see #setShort(Object, short)
|
|
* @see #setInt(Object, int)
|
|
* @see #setLong(Object, long)
|
|
* @see #setFloat(Object, float)
|
|
* @see #setDouble(Object, double)
|
|
*/
|
|
public void set(Object object, Object value)
|
|
throws IllegalAccessException
|
|
{
|
|
set(null, object, value);
|
|
}
|
|
|
|
/**
|
|
* Set this boolean Field. If the field is static, <code>o</code> will be
|
|
* ignored.
|
|
*
|
|
* @param o the object to set this Field on
|
|
* @param value the value to set this Field to
|
|
* @throws IllegalAccessException if you could not normally access this field
|
|
* (i.e. it is not public)
|
|
* @throws IllegalArgumentException if this is not a boolean field, or if
|
|
* <code>o</code> is not an instance of the class declaring this
|
|
* field
|
|
* @throws NullPointerException if <code>o</code> is null and this field
|
|
* requires an instance
|
|
* @throws ExceptionInInitializerError if accessing a static field triggered
|
|
* class initialization, which then failed
|
|
* @see #set(Object, Object)
|
|
*/
|
|
public void setBoolean(Object obj, boolean b)
|
|
throws IllegalAccessException
|
|
{
|
|
setBoolean(null, obj, b, true);
|
|
}
|
|
|
|
/**
|
|
* Set this byte Field. If the field is static, <code>o</code> will be
|
|
* ignored.
|
|
*
|
|
* @param o the object to set this Field on
|
|
* @param value the value to set this Field to
|
|
* @throws IllegalAccessException if you could not normally access this field
|
|
* (i.e. it is not public)
|
|
* @throws IllegalArgumentException if this is not a byte, short, int, long,
|
|
* float, or double field, or if <code>o</code> is not an instance
|
|
* of the class declaring this field
|
|
* @throws NullPointerException if <code>o</code> is null and this field
|
|
* requires an instance
|
|
* @throws ExceptionInInitializerError if accessing a static field triggered
|
|
* class initialization, which then failed
|
|
* @see #set(Object, Object)
|
|
*/
|
|
public void setByte(Object obj, byte b)
|
|
throws IllegalAccessException
|
|
{
|
|
setByte(null, obj, b, true);
|
|
}
|
|
|
|
/**
|
|
* Set this char Field. If the field is static, <code>o</code> will be
|
|
* ignored.
|
|
*
|
|
* @param o the object to set this Field on
|
|
* @param value the value to set this Field to
|
|
* @throws IllegalAccessException if you could not normally access this field
|
|
* (i.e. it is not public)
|
|
* @throws IllegalArgumentException if this is not a char, int, long,
|
|
* float, or double field, or if <code>o</code> is not an instance
|
|
* of the class declaring this field
|
|
* @throws NullPointerException if <code>o</code> is null and this field
|
|
* requires an instance
|
|
* @throws ExceptionInInitializerError if accessing a static field triggered
|
|
* class initialization, which then failed
|
|
* @see #set(Object, Object)
|
|
*/
|
|
public void setChar(Object obj, char c)
|
|
throws IllegalAccessException
|
|
{
|
|
setChar(null, obj, c, true);
|
|
}
|
|
|
|
/**
|
|
* Set this short Field. If the field is static, <code>o</code> will be
|
|
* ignored.
|
|
*
|
|
* @param o the object to set this Field on
|
|
* @param value the value to set this Field to
|
|
* @throws IllegalAccessException if you could not normally access this field
|
|
* (i.e. it is not public)
|
|
* @throws IllegalArgumentException if this is not a short, int, long,
|
|
* float, or double field, or if <code>o</code> is not an instance
|
|
* of the class declaring this field
|
|
* @throws NullPointerException if <code>o</code> is null and this field
|
|
* requires an instance
|
|
* @throws ExceptionInInitializerError if accessing a static field triggered
|
|
* class initialization, which then failed
|
|
* @see #set(Object, Object)
|
|
*/
|
|
public void setShort(Object obj, short s)
|
|
throws IllegalAccessException
|
|
{
|
|
setShort(null, obj, s, true);
|
|
}
|
|
|
|
/**
|
|
* Set this int Field. If the field is static, <code>o</code> will be
|
|
* ignored.
|
|
*
|
|
* @param o the object to set this Field on
|
|
* @param value the value to set this Field to
|
|
* @throws IllegalAccessException if you could not normally access this field
|
|
* (i.e. it is not public)
|
|
* @throws IllegalArgumentException if this is not an int, long, float, or
|
|
* double field, or if <code>o</code> is not an instance of the
|
|
* class declaring this field
|
|
* @throws NullPointerException if <code>o</code> is null and this field
|
|
* requires an instance
|
|
* @throws ExceptionInInitializerError if accessing a static field triggered
|
|
* class initialization, which then failed
|
|
* @see #set(Object, Object)
|
|
*/
|
|
public void setInt(Object obj, int i)
|
|
throws IllegalAccessException
|
|
{
|
|
setInt(null, obj, i, true);
|
|
}
|
|
|
|
/**
|
|
* Set this long Field. If the field is static, <code>o</code> will be
|
|
* ignored.
|
|
*
|
|
* @param o the object to set this Field on
|
|
* @param value the value to set this Field to
|
|
* @throws IllegalAccessException if you could not normally access this field
|
|
* (i.e. it is not public)
|
|
* @throws IllegalArgumentException if this is not a long, float, or double
|
|
* field, or if <code>o</code> is not an instance of the class
|
|
* declaring this field
|
|
* @throws NullPointerException if <code>o</code> is null and this field
|
|
* requires an instance
|
|
* @throws ExceptionInInitializerError if accessing a static field triggered
|
|
* class initialization, which then failed
|
|
* @see #set(Object, Object)
|
|
*/
|
|
public void setLong(Object obj, long l)
|
|
throws IllegalArgumentException, IllegalAccessException
|
|
{
|
|
setLong(null, obj, l, true);
|
|
}
|
|
|
|
/**
|
|
* Set this float Field. If the field is static, <code>o</code> will be
|
|
* ignored.
|
|
*
|
|
* @param o the object to set this Field on
|
|
* @param value the value to set this Field to
|
|
* @throws IllegalAccessException if you could not normally access this field
|
|
* (i.e. it is not public)
|
|
* @throws IllegalArgumentException if this is not a float or long field, or
|
|
* if <code>o</code> is not an instance of the class declaring this
|
|
* field
|
|
* @throws NullPointerException if <code>o</code> is null and this field
|
|
* requires an instance
|
|
* @throws ExceptionInInitializerError if accessing a static field triggered
|
|
* class initialization, which then failed
|
|
* @see #set(Object, Object)
|
|
*/
|
|
public void setFloat(Object obj, float f)
|
|
throws IllegalAccessException
|
|
{
|
|
setFloat(null, obj, f, true);
|
|
}
|
|
|
|
/**
|
|
* Set this double Field. If the field is static, <code>o</code> will be
|
|
* ignored.
|
|
*
|
|
* @param o the object to set this Field on
|
|
* @param value the value to set this Field to
|
|
* @throws IllegalAccessException if you could not normally access this field
|
|
* (i.e. it is not public)
|
|
* @throws IllegalArgumentException if this is not a double field, or if
|
|
* <code>o</code> is not an instance of the class declaring this
|
|
* field
|
|
* @throws NullPointerException if <code>o</code> is null and this field
|
|
* requires an instance
|
|
* @throws ExceptionInInitializerError if accessing a static field triggered
|
|
* class initialization, which then failed
|
|
* @see #set(Object, Object)
|
|
*/
|
|
public void setDouble(Object obj, double d)
|
|
throws IllegalAccessException
|
|
{
|
|
setDouble(null, obj, d, true);
|
|
}
|
|
|
|
/**
|
|
* Return the generic type of the field. If the field type is not a generic
|
|
* type, the method returns the same as <code>getType()</code>.
|
|
*
|
|
* @throws GenericSignatureFormatError if the generic signature does
|
|
* not conform to the format specified in the Virtual Machine
|
|
* specification, version 3.
|
|
* @since 1.5
|
|
*/
|
|
public Type getGenericType()
|
|
{
|
|
String signature = getSignature();
|
|
if (signature == null)
|
|
return getType();
|
|
FieldSignatureParser p = new FieldSignatureParser(getDeclaringClass(),
|
|
signature);
|
|
return p.getFieldType();
|
|
}
|
|
|
|
public <T extends Annotation> T getAnnotation(Class<T> annoClass)
|
|
{
|
|
Annotation[] annos = getDeclaredAnnotations();
|
|
for (int i = 0; i < annos.length; ++i)
|
|
if (annos[i].annotationType() == annoClass)
|
|
return (T) annos[i];
|
|
return null;
|
|
}
|
|
|
|
public Annotation[] getDeclaredAnnotations()
|
|
{
|
|
Annotation[] result = getDeclaredAnnotationsInternal();
|
|
if (result == null)
|
|
result = new Annotation[0];
|
|
return result;
|
|
}
|
|
|
|
private native Annotation[] getDeclaredAnnotationsInternal();
|
|
|
|
/**
|
|
* Return the String in the Signature attribute for this field. If there
|
|
* is no Signature attribute, return null.
|
|
*/
|
|
private native String getSignature();
|
|
|
|
native void setByte (Class caller, Object obj, byte b, boolean checkFinal)
|
|
throws IllegalArgumentException, IllegalAccessException;
|
|
|
|
native void setShort (Class caller, Object obj, short s, boolean checkFinal)
|
|
throws IllegalArgumentException, IllegalAccessException;
|
|
|
|
native void setInt (Class caller, Object obj, int i, boolean checkFinal)
|
|
throws IllegalArgumentException, IllegalAccessException;
|
|
|
|
native void setLong (Class caller, Object obj, long l, boolean checkFinal)
|
|
throws IllegalArgumentException, IllegalAccessException;
|
|
|
|
native void setFloat (Class caller, Object obj, float f, boolean checkFinal)
|
|
throws IllegalArgumentException, IllegalAccessException;
|
|
|
|
native void setDouble (Class caller, Object obj, double d,
|
|
boolean checkFinal)
|
|
throws IllegalArgumentException, IllegalAccessException;
|
|
|
|
native void setChar (Class caller, Object obj, char c, boolean checkFinal)
|
|
throws IllegalArgumentException, IllegalAccessException;
|
|
|
|
native void setBoolean (Class caller, Object obj, boolean b,
|
|
boolean checkFinal)
|
|
throws IllegalArgumentException, IllegalAccessException;
|
|
|
|
native void set (Class caller, Object obj, Object val, Class type,
|
|
boolean checkFinal)
|
|
throws IllegalArgumentException, IllegalAccessException;
|
|
|
|
private void set (Class caller, Object object, Object value)
|
|
throws IllegalArgumentException, IllegalAccessException
|
|
{
|
|
Class type = getType();
|
|
if (! type.isPrimitive())
|
|
set(caller, object, value, type, true);
|
|
else if (value instanceof Byte)
|
|
setByte(caller, object, ((Byte) value).byteValue(), true);
|
|
else if (value instanceof Short)
|
|
setShort (caller, object, ((Short) value).shortValue(), true);
|
|
else if (value instanceof Integer)
|
|
setInt(caller, object, ((Integer) value).intValue(), true);
|
|
else if (value instanceof Long)
|
|
setLong(caller, object, ((Long) value).longValue(), true);
|
|
else if (value instanceof Float)
|
|
setFloat(caller, object, ((Float) value).floatValue(), true);
|
|
else if (value instanceof Double)
|
|
setDouble(caller, object, ((Double) value).doubleValue(), true);
|
|
else if (value instanceof Character)
|
|
setChar(caller, object, ((Character) value).charValue(), true);
|
|
else if (value instanceof Boolean)
|
|
setBoolean(caller, object, ((Boolean) value).booleanValue(), true);
|
|
else
|
|
throw new IllegalArgumentException();
|
|
}
|
|
}
|