| /* |
| * Copyright (C) 2014 The Android Open Source Project |
| * Copyright (c) 1996, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package java.lang.reflect; |
| |
| import dalvik.annotation.optimization.FastNative; |
| import sun.reflect.CallerSensitive; |
| import java.lang.annotation.Annotation; |
| import java.util.Objects; |
| import libcore.reflect.AnnotatedElements; |
| import libcore.reflect.GenericSignatureParser; |
| |
| |
| /** |
| * A {@code Field} provides information about, and dynamic access to, a |
| * single field of a class or an interface. The reflected field may |
| * be a class (static) field or an instance field. |
| * |
| * <p>A {@code Field} permits widening conversions to occur during a get or |
| * set access operation, but throws an {@code IllegalArgumentException} if a |
| * narrowing conversion would occur. |
| * |
| * @see Member |
| * @see java.lang.Class |
| * @see java.lang.Class#getFields() |
| * @see java.lang.Class#getField(String) |
| * @see java.lang.Class#getDeclaredFields() |
| * @see java.lang.Class#getDeclaredField(String) |
| * |
| * @author Kenneth Russell |
| * @author Nakul Saraiya |
| */ |
| public final |
| class Field extends AccessibleObject implements Member { |
| // Android-changed: Extensive modifications made throughout the class for ART. |
| // Android-changed: Many fields and methods removed / modified. |
| // Android-removed: Type annotations runtime code. Not supported on Android. |
| |
| private int accessFlags; |
| private Class<?> declaringClass; |
| private int dexFieldIndex; |
| private int offset; |
| private Class<?> type; |
| |
| private Field() { |
| } |
| |
| /** |
| * Returns the {@code Class} object representing the class or interface |
| * that declares the field represented by this {@code Field} object. |
| */ |
| public Class<?> getDeclaringClass() { |
| // Android-changed: Adjust code for different field names. |
| return declaringClass; |
| } |
| |
| /** |
| * Returns the name of the field represented by this {@code Field} object. |
| */ |
| public String getName() { |
| // Android-changed: getName() implemented differently. |
| if (dexFieldIndex == -1) { |
| // Proxy classes have 1 synthesized static field with no valid dex index. |
| if (!declaringClass.isProxy()) { |
| throw new AssertionError(); |
| } |
| return "throws"; |
| } |
| |
| return getNameInternal(); |
| } |
| |
| // Android-added: getName() implemented differently. |
| @FastNative |
| private native String getNameInternal(); |
| |
| /** |
| * Returns the Java language modifiers for the field represented |
| * by this {@code Field} object, as an integer. The {@code Modifier} class should |
| * be used to decode the modifiers. |
| * |
| * @see Modifier |
| */ |
| public int getModifiers() { |
| // Android-changed: Adjust getModifiers() implementation to mask extra bits used on Android. |
| return accessFlags & 0xffff; // mask out bits not used by Java |
| } |
| |
| /** |
| * Returns {@code true} if this field represents an element of |
| * an enumerated type; returns {@code false} otherwise. |
| * |
| * @return {@code true} if and only if this field represents an element of |
| * an enumerated type. |
| * @since 1.5 |
| */ |
| public boolean isEnumConstant() { |
| return (getModifiers() & Modifier.ENUM) != 0; |
| } |
| |
| /** |
| * Returns {@code true} if this field is a synthetic |
| * field; returns {@code false} otherwise. |
| * |
| * @return true if and only if this field is a synthetic |
| * field as defined by the Java Language Specification. |
| * @since 1.5 |
| */ |
| public boolean isSynthetic() { |
| return Modifier.isSynthetic(getModifiers()); |
| } |
| |
| /** |
| * Returns a {@code Class} object that identifies the |
| * declared type for the field represented by this |
| * {@code Field} object. |
| * |
| * @return a {@code Class} object identifying the declared |
| * type of the field represented by this object |
| */ |
| public Class<?> getType() { |
| return type; |
| } |
| |
| /** |
| * Returns a {@code Type} object that represents the declared type for |
| * the field represented by this {@code Field} object. |
| * |
| * <p>If the {@code Type} is a parameterized type, the |
| * {@code Type} object returned must accurately reflect the |
| * actual type parameters used in the source code. |
| * |
| * <p>If the type of the underlying field is a type variable or a |
| * parameterized type, it is created. Otherwise, it is resolved. |
| * |
| * @return a {@code Type} object that represents the declared type for |
| * the field represented by this {@code Field} object |
| * @throws GenericSignatureFormatError if the generic field |
| * signature does not conform to the format specified in |
| * <cite>The Java™ Virtual Machine Specification</cite> |
| * @throws TypeNotPresentException if the generic type |
| * signature of the underlying field refers to a non-existent |
| * type declaration |
| * @throws MalformedParameterizedTypeException if the generic |
| * signature of the underlying field refers to a parameterized type |
| * that cannot be instantiated for any reason |
| * @since 1.5 |
| */ |
| public Type getGenericType() { |
| // Android-changed: getGenericType() implemented differently. |
| String signatureAttribute = getSignatureAttribute(); |
| ClassLoader cl = declaringClass.getClassLoader(); |
| GenericSignatureParser parser = new GenericSignatureParser(cl); |
| parser.parseForField(declaringClass, signatureAttribute); |
| Type genericType = parser.fieldType; |
| if (genericType == null) { |
| genericType = getType(); |
| } |
| return genericType; |
| } |
| |
| // BEGIN Android-added: getGenericType() implemented differently. |
| private String getSignatureAttribute() { |
| String[] annotation = getSignatureAnnotation(); |
| if (annotation == null) { |
| return null; |
| } |
| StringBuilder result = new StringBuilder(); |
| for (String s : annotation) { |
| result.append(s); |
| } |
| return result.toString(); |
| } |
| @FastNative |
| private native String[] getSignatureAnnotation(); |
| // END Android-added: getGenericType() implemented differently. |
| |
| |
| /** |
| * Compares this {@code Field} against the specified object. Returns |
| * true if the objects are the same. Two {@code Field} objects are the same if |
| * they were declared by the same class and have the same name |
| * and type. |
| */ |
| public boolean equals(Object obj) { |
| if (obj != null && obj instanceof Field) { |
| Field other = (Field)obj; |
| return (getDeclaringClass() == other.getDeclaringClass()) |
| && (getName() == other.getName()) |
| && (getType() == other.getType()); |
| } |
| return false; |
| } |
| |
| /** |
| * Returns a hashcode for this {@code Field}. This is computed as the |
| * exclusive-or of the hashcodes for the underlying field's |
| * declaring class name and its name. |
| */ |
| public int hashCode() { |
| return getDeclaringClass().getName().hashCode() ^ getName().hashCode(); |
| } |
| |
| /** |
| * Returns a string describing this {@code Field}. The format is |
| * the access modifiers for the field, if any, followed |
| * by the field type, followed by a space, followed by |
| * the fully-qualified name of the class declaring the field, |
| * followed by a period, followed by the name of the field. |
| * For example: |
| * <pre> |
| * public static final int java.lang.Thread.MIN_PRIORITY |
| * private int java.io.FileDescriptor.fd |
| * </pre> |
| * |
| * <p>The modifiers are placed in canonical order as specified by |
| * "The Java Language Specification". This is {@code public}, |
| * {@code protected} or {@code private} first, and then other |
| * modifiers in the following order: {@code static}, {@code final}, |
| * {@code transient}, {@code volatile}. |
| * |
| * @return a string describing this {@code Field} |
| * @jls 8.3.1 Field Modifiers |
| */ |
| public String toString() { |
| int mod = getModifiers(); |
| return (((mod == 0) ? "" : (Modifier.toString(mod) + " ")) |
| + getType().getTypeName() + " " |
| + getDeclaringClass().getTypeName() + "." |
| + getName()); |
| } |
| |
| /** |
| * Returns a string describing this {@code Field}, including |
| * its generic type. The format is the access modifiers for the |
| * field, if any, followed by the generic field type, followed by |
| * a space, followed by the fully-qualified name of the class |
| * declaring the field, followed by a period, followed by the name |
| * of the field. |
| * |
| * <p>The modifiers are placed in canonical order as specified by |
| * "The Java Language Specification". This is {@code public}, |
| * {@code protected} or {@code private} first, and then other |
| * modifiers in the following order: {@code static}, {@code final}, |
| * {@code transient}, {@code volatile}. |
| * |
| * @return a string describing this {@code Field}, including |
| * its generic type |
| * |
| * @since 1.5 |
| * @jls 8.3.1 Field Modifiers |
| */ |
| public String toGenericString() { |
| int mod = getModifiers(); |
| Type fieldType = getGenericType(); |
| return (((mod == 0) ? "" : (Modifier.toString(mod) + " ")) |
| + fieldType.getTypeName() + " " |
| + getDeclaringClass().getTypeName() + "." |
| + getName()); |
| } |
| |
| /** |
| * Returns the value of the field represented by this {@code Field}, on |
| * the specified object. The value is automatically wrapped in an |
| * object if it has a primitive type. |
| * |
| * <p>The underlying field's value is obtained as follows: |
| * |
| * <p>If the underlying field is a static field, the {@code obj} argument |
| * is ignored; it may be null. |
| * |
| * <p>Otherwise, the underlying field is an instance field. If the |
| * specified {@code obj} argument is null, the method throws a |
| * {@code NullPointerException}. If the specified object is not an |
| * instance of the class or interface declaring the underlying |
| * field, the method throws an {@code IllegalArgumentException}. |
| * |
| * <p>If this {@code Field} object is enforcing Java language access control, and |
| * the underlying field is inaccessible, the method throws an |
| * {@code IllegalAccessException}. |
| * If the underlying field is static, the class that declared the |
| * field is initialized if it has not already been initialized. |
| * |
| * <p>Otherwise, the value is retrieved from the underlying instance |
| * or static field. If the field has a primitive type, the value |
| * is wrapped in an object before being returned, otherwise it is |
| * returned as is. |
| * |
| * <p>If the field is hidden in the type of {@code obj}, |
| * the field's value is obtained according to the preceding rules. |
| * |
| * @param obj object from which the represented field's value is |
| * to be extracted |
| * @return the value of the represented field in object |
| * {@code obj}; primitive values are wrapped in an appropriate |
| * object before being returned |
| * |
| * @exception IllegalAccessException if this {@code Field} object |
| * is enforcing Java language access control and the underlying |
| * field is inaccessible. |
| * @exception IllegalArgumentException if the specified object is not an |
| * instance of the class or interface declaring the underlying |
| * field (or a subclass or implementor thereof). |
| * @exception NullPointerException if the specified object is null |
| * and the field is an instance field. |
| * @exception ExceptionInInitializerError if the initialization provoked |
| * by this method fails. |
| */ |
| @CallerSensitive |
| // Android-changed: get*(Object) implemented natively. |
| @FastNative |
| public native Object get(Object obj) |
| throws IllegalArgumentException, IllegalAccessException; |
| |
| /** |
| * Gets the value of a static or instance {@code boolean} field. |
| * |
| * @param obj the object to extract the {@code boolean} value |
| * from |
| * @return the value of the {@code boolean} field |
| * |
| * @exception IllegalAccessException if this {@code Field} object |
| * is enforcing Java language access control and the underlying |
| * field is inaccessible. |
| * @exception IllegalArgumentException if the specified object is not |
| * an instance of the class or interface declaring the |
| * underlying field (or a subclass or implementor |
| * thereof), or if the field value cannot be |
| * converted to the type {@code boolean} by a |
| * widening conversion. |
| * @exception NullPointerException if the specified object is null |
| * and the field is an instance field. |
| * @exception ExceptionInInitializerError if the initialization provoked |
| * by this method fails. |
| * @see Field#get |
| */ |
| @CallerSensitive |
| // Android-changed: get*(Object) implemented natively. |
| @FastNative |
| public native boolean getBoolean(Object obj) |
| throws IllegalArgumentException, IllegalAccessException; |
| |
| /** |
| * Gets the value of a static or instance {@code byte} field. |
| * |
| * @param obj the object to extract the {@code byte} value |
| * from |
| * @return the value of the {@code byte} field |
| * |
| * @exception IllegalAccessException if this {@code Field} object |
| * is enforcing Java language access control and the underlying |
| * field is inaccessible. |
| * @exception IllegalArgumentException if the specified object is not |
| * an instance of the class or interface declaring the |
| * underlying field (or a subclass or implementor |
| * thereof), or if the field value cannot be |
| * converted to the type {@code byte} by a |
| * widening conversion. |
| * @exception NullPointerException if the specified object is null |
| * and the field is an instance field. |
| * @exception ExceptionInInitializerError if the initialization provoked |
| * by this method fails. |
| * @see Field#get |
| */ |
| @CallerSensitive |
| // Android-changed: get*(Object) implemented natively. |
| @FastNative |
| public native byte getByte(Object obj) |
| throws IllegalArgumentException, IllegalAccessException; |
| |
| /** |
| * Gets the value of a static or instance field of type |
| * {@code char} or of another primitive type convertible to |
| * type {@code char} via a widening conversion. |
| * |
| * @param obj the object to extract the {@code char} value |
| * from |
| * @return the value of the field converted to type {@code char} |
| * |
| * @exception IllegalAccessException if this {@code Field} object |
| * is enforcing Java language access control and the underlying |
| * field is inaccessible. |
| * @exception IllegalArgumentException if the specified object is not |
| * an instance of the class or interface declaring the |
| * underlying field (or a subclass or implementor |
| * thereof), or if the field value cannot be |
| * converted to the type {@code char} by a |
| * widening conversion. |
| * @exception NullPointerException if the specified object is null |
| * and the field is an instance field. |
| * @exception ExceptionInInitializerError if the initialization provoked |
| * by this method fails. |
| * @see Field#get |
| */ |
| @CallerSensitive |
| // Android-changed: get*(Object) implemented natively. |
| @FastNative |
| public native char getChar(Object obj) |
| throws IllegalArgumentException, IllegalAccessException; |
| |
| /** |
| * Gets the value of a static or instance field of type |
| * {@code short} or of another primitive type convertible to |
| * type {@code short} via a widening conversion. |
| * |
| * @param obj the object to extract the {@code short} value |
| * from |
| * @return the value of the field converted to type {@code short} |
| * |
| * @exception IllegalAccessException if this {@code Field} object |
| * is enforcing Java language access control and the underlying |
| * field is inaccessible. |
| * @exception IllegalArgumentException if the specified object is not |
| * an instance of the class or interface declaring the |
| * underlying field (or a subclass or implementor |
| * thereof), or if the field value cannot be |
| * converted to the type {@code short} by a |
| * widening conversion. |
| * @exception NullPointerException if the specified object is null |
| * and the field is an instance field. |
| * @exception ExceptionInInitializerError if the initialization provoked |
| * by this method fails. |
| * @see Field#get |
| */ |
| @CallerSensitive |
| // Android-changed: get*(Object) implemented natively. |
| @FastNative |
| public native short getShort(Object obj) |
| throws IllegalArgumentException, IllegalAccessException; |
| |
| /** |
| * Gets the value of a static or instance field of type |
| * {@code int} or of another primitive type convertible to |
| * type {@code int} via a widening conversion. |
| * |
| * @param obj the object to extract the {@code int} value |
| * from |
| * @return the value of the field converted to type {@code int} |
| * |
| * @exception IllegalAccessException if this {@code Field} object |
| * is enforcing Java language access control and the underlying |
| * field is inaccessible. |
| * @exception IllegalArgumentException if the specified object is not |
| * an instance of the class or interface declaring the |
| * underlying field (or a subclass or implementor |
| * thereof), or if the field value cannot be |
| * converted to the type {@code int} by a |
| * widening conversion. |
| * @exception NullPointerException if the specified object is null |
| * and the field is an instance field. |
| * @exception ExceptionInInitializerError if the initialization provoked |
| * by this method fails. |
| * @see Field#get |
| */ |
| @CallerSensitive |
| // Android-changed: get*(Object) implemented natively. |
| @FastNative |
| public native int getInt(Object obj) |
| throws IllegalArgumentException, IllegalAccessException; |
| |
| /** |
| * Gets the value of a static or instance field of type |
| * {@code long} or of another primitive type convertible to |
| * type {@code long} via a widening conversion. |
| * |
| * @param obj the object to extract the {@code long} value |
| * from |
| * @return the value of the field converted to type {@code long} |
| * |
| * @exception IllegalAccessException if this {@code Field} object |
| * is enforcing Java language access control and the underlying |
| * field is inaccessible. |
| * @exception IllegalArgumentException if the specified object is not |
| * an instance of the class or interface declaring the |
| * underlying field (or a subclass or implementor |
| * thereof), or if the field value cannot be |
| * converted to the type {@code long} by a |
| * widening conversion. |
| * @exception NullPointerException if the specified object is null |
| * and the field is an instance field. |
| * @exception ExceptionInInitializerError if the initialization provoked |
| * by this method fails. |
| * @see Field#get |
| */ |
| @CallerSensitive |
| // Android-changed: get*(Object) implemented natively. |
| @FastNative |
| public native long getLong(Object obj) |
| throws IllegalArgumentException, IllegalAccessException; |
| |
| /** |
| * Gets the value of a static or instance field of type |
| * {@code float} or of another primitive type convertible to |
| * type {@code float} via a widening conversion. |
| * |
| * @param obj the object to extract the {@code float} value |
| * from |
| * @return the value of the field converted to type {@code float} |
| * |
| * @exception IllegalAccessException if this {@code Field} object |
| * is enforcing Java language access control and the underlying |
| * field is inaccessible. |
| * @exception IllegalArgumentException if the specified object is not |
| * an instance of the class or interface declaring the |
| * underlying field (or a subclass or implementor |
| * thereof), or if the field value cannot be |
| * converted to the type {@code float} by a |
| * widening conversion. |
| * @exception NullPointerException if the specified object is null |
| * and the field is an instance field. |
| * @exception ExceptionInInitializerError if the initialization provoked |
| * by this method fails. |
| * @see Field#get |
| */ |
| @CallerSensitive |
| // Android-changed: get*(Object) implemented natively. |
| @FastNative |
| public native float getFloat(Object obj) |
| throws IllegalArgumentException, IllegalAccessException; |
| |
| /** |
| * Gets the value of a static or instance field of type |
| * {@code double} or of another primitive type convertible to |
| * type {@code double} via a widening conversion. |
| * |
| * @param obj the object to extract the {@code double} value |
| * from |
| * @return the value of the field converted to type {@code double} |
| * |
| * @exception IllegalAccessException if this {@code Field} object |
| * is enforcing Java language access control and the underlying |
| * field is inaccessible. |
| * @exception IllegalArgumentException if the specified object is not |
| * an instance of the class or interface declaring the |
| * underlying field (or a subclass or implementor |
| * thereof), or if the field value cannot be |
| * converted to the type {@code double} by a |
| * widening conversion. |
| * @exception NullPointerException if the specified object is null |
| * and the field is an instance field. |
| * @exception ExceptionInInitializerError if the initialization provoked |
| * by this method fails. |
| * @see Field#get |
| */ |
| @CallerSensitive |
| // Android-changed: get*(Object) implemented natively. |
| @FastNative |
| public native double getDouble(Object obj) |
| throws IllegalArgumentException, IllegalAccessException; |
| |
| /** |
| * Sets the field represented by this {@code Field} object on the |
| * specified object argument to the specified new value. The new |
| * value is automatically unwrapped if the underlying field has a |
| * primitive type. |
| * |
| * <p>The operation proceeds as follows: |
| * |
| * <p>If the underlying field is static, the {@code obj} argument is |
| * ignored; it may be null. |
| * |
| * <p>Otherwise the underlying field is an instance field. If the |
| * specified object argument is null, the method throws a |
| * {@code NullPointerException}. If the specified object argument is not |
| * an instance of the class or interface declaring the underlying |
| * field, the method throws an {@code IllegalArgumentException}. |
| * |
| * <p>If this {@code Field} object is enforcing Java language access control, and |
| * the underlying field is inaccessible, the method throws an |
| * {@code IllegalAccessException}. |
| * |
| * <p>If the underlying field is final, the method throws an |
| * {@code IllegalAccessException} unless {@code setAccessible(true)} |
| * has succeeded for this {@code Field} object |
| * and the field is non-static. Setting a final field in this way |
| * is meaningful only during deserialization or reconstruction of |
| * instances of classes with blank final fields, before they are |
| * made available for access by other parts of a program. Use in |
| * any other context may have unpredictable effects, including cases |
| * in which other parts of a program continue to use the original |
| * value of this field. |
| * |
| * <p>If the underlying field is of a primitive type, an unwrapping |
| * conversion is attempted to convert the new value to a value of |
| * a primitive type. If this attempt fails, the method throws an |
| * {@code IllegalArgumentException}. |
| * |
| * <p>If, after possible unwrapping, the new value cannot be |
| * converted to the type of the underlying field by an identity or |
| * widening conversion, the method throws an |
| * {@code IllegalArgumentException}. |
| * |
| * <p>If the underlying field is static, the class that declared the |
| * field is initialized if it has not already been initialized. |
| * |
| * <p>The field is set to the possibly unwrapped and widened new value. |
| * |
| * <p>If the field is hidden in the type of {@code obj}, |
| * the field's value is set according to the preceding rules. |
| * |
| * @param obj the object whose field should be modified |
| * @param value the new value for the field of {@code obj} |
| * being modified |
| * |
| * @exception IllegalAccessException if this {@code Field} object |
| * is enforcing Java language access control and the underlying |
| * field is either inaccessible or final. |
| * @exception IllegalArgumentException if the specified object is not an |
| * instance of the class or interface declaring the underlying |
| * field (or a subclass or implementor thereof), |
| * or if an unwrapping conversion fails. |
| * @exception NullPointerException if the specified object is null |
| * and the field is an instance field. |
| * @exception ExceptionInInitializerError if the initialization provoked |
| * by this method fails. |
| */ |
| @CallerSensitive |
| // Android-changed: set*(Object, ...) implemented natively. |
| @FastNative |
| public native void set(Object obj, Object value) |
| throws IllegalArgumentException, IllegalAccessException; |
| |
| /** |
| * Sets the value of a field as a {@code boolean} on the specified object. |
| * This method is equivalent to |
| * {@code set(obj, zObj)}, |
| * where {@code zObj} is a {@code Boolean} object and |
| * {@code zObj.booleanValue() == z}. |
| * |
| * @param obj the object whose field should be modified |
| * @param z the new value for the field of {@code obj} |
| * being modified |
| * |
| * @exception IllegalAccessException if this {@code Field} object |
| * is enforcing Java language access control and the underlying |
| * field is either inaccessible or final. |
| * @exception IllegalArgumentException if the specified object is not an |
| * instance of the class or interface declaring the underlying |
| * field (or a subclass or implementor thereof), |
| * or if an unwrapping conversion fails. |
| * @exception NullPointerException if the specified object is null |
| * and the field is an instance field. |
| * @exception ExceptionInInitializerError if the initialization provoked |
| * by this method fails. |
| * @see Field#set |
| */ |
| @CallerSensitive |
| // Android-changed: set*(Object, ...) implemented natively. |
| @FastNative |
| public native void setBoolean(Object obj, boolean z) |
| throws IllegalArgumentException, IllegalAccessException; |
| |
| /** |
| * Sets the value of a field as a {@code byte} on the specified object. |
| * This method is equivalent to |
| * {@code set(obj, bObj)}, |
| * where {@code bObj} is a {@code Byte} object and |
| * {@code bObj.byteValue() == b}. |
| * |
| * @param obj the object whose field should be modified |
| * @param b the new value for the field of {@code obj} |
| * being modified |
| * |
| * @exception IllegalAccessException if this {@code Field} object |
| * is enforcing Java language access control and the underlying |
| * field is either inaccessible or final. |
| * @exception IllegalArgumentException if the specified object is not an |
| * instance of the class or interface declaring the underlying |
| * field (or a subclass or implementor thereof), |
| * or if an unwrapping conversion fails. |
| * @exception NullPointerException if the specified object is null |
| * and the field is an instance field. |
| * @exception ExceptionInInitializerError if the initialization provoked |
| * by this method fails. |
| * @see Field#set |
| */ |
| @CallerSensitive |
| // Android-changed: set*(Object, ...) implemented natively. |
| @FastNative |
| public native void setByte(Object obj, byte b) |
| throws IllegalArgumentException, IllegalAccessException; |
| |
| /** |
| * Sets the value of a field as a {@code char} on the specified object. |
| * This method is equivalent to |
| * {@code set(obj, cObj)}, |
| * where {@code cObj} is a {@code Character} object and |
| * {@code cObj.charValue() == c}. |
| * |
| * @param obj the object whose field should be modified |
| * @param c the new value for the field of {@code obj} |
| * being modified |
| * |
| * @exception IllegalAccessException if this {@code Field} object |
| * is enforcing Java language access control and the underlying |
| * field is either inaccessible or final. |
| * @exception IllegalArgumentException if the specified object is not an |
| * instance of the class or interface declaring the underlying |
| * field (or a subclass or implementor thereof), |
| * or if an unwrapping conversion fails. |
| * @exception NullPointerException if the specified object is null |
| * and the field is an instance field. |
| * @exception ExceptionInInitializerError if the initialization provoked |
| * by this method fails. |
| * @see Field#set |
| */ |
| @CallerSensitive |
| // Android-changed: set*(Object, ...) implemented natively. |
| @FastNative |
| public native void setChar(Object obj, char c) |
| throws IllegalArgumentException, IllegalAccessException; |
| |
| /** |
| * Sets the value of a field as a {@code short} on the specified object. |
| * This method is equivalent to |
| * {@code set(obj, sObj)}, |
| * where {@code sObj} is a {@code Short} object and |
| * {@code sObj.shortValue() == s}. |
| * |
| * @param obj the object whose field should be modified |
| * @param s the new value for the field of {@code obj} |
| * being modified |
| * |
| * @exception IllegalAccessException if this {@code Field} object |
| * is enforcing Java language access control and the underlying |
| * field is either inaccessible or final. |
| * @exception IllegalArgumentException if the specified object is not an |
| * instance of the class or interface declaring the underlying |
| * field (or a subclass or implementor thereof), |
| * or if an unwrapping conversion fails. |
| * @exception NullPointerException if the specified object is null |
| * and the field is an instance field. |
| * @exception ExceptionInInitializerError if the initialization provoked |
| * by this method fails. |
| * @see Field#set |
| */ |
| @CallerSensitive |
| // Android-changed: set*(Object, ...) implemented natively. |
| @FastNative |
| public native void setShort(Object obj, short s) |
| throws IllegalArgumentException, IllegalAccessException; |
| |
| /** |
| * Sets the value of a field as an {@code int} on the specified object. |
| * This method is equivalent to |
| * {@code set(obj, iObj)}, |
| * where {@code iObj} is a {@code Integer} object and |
| * {@code iObj.intValue() == i}. |
| * |
| * @param obj the object whose field should be modified |
| * @param i the new value for the field of {@code obj} |
| * being modified |
| * |
| * @exception IllegalAccessException if this {@code Field} object |
| * is enforcing Java language access control and the underlying |
| * field is either inaccessible or final. |
| * @exception IllegalArgumentException if the specified object is not an |
| * instance of the class or interface declaring the underlying |
| * field (or a subclass or implementor thereof), |
| * or if an unwrapping conversion fails. |
| * @exception NullPointerException if the specified object is null |
| * and the field is an instance field. |
| * @exception ExceptionInInitializerError if the initialization provoked |
| * by this method fails. |
| * @see Field#set |
| */ |
| @CallerSensitive |
| // Android-changed: set*(Object, ...) implemented natively. |
| @FastNative |
| public native void setInt(Object obj, int i) |
| throws IllegalArgumentException, IllegalAccessException; |
| |
| /** |
| * Sets the value of a field as a {@code long} on the specified object. |
| * This method is equivalent to |
| * {@code set(obj, lObj)}, |
| * where {@code lObj} is a {@code Long} object and |
| * {@code lObj.longValue() == l}. |
| * |
| * @param obj the object whose field should be modified |
| * @param l the new value for the field of {@code obj} |
| * being modified |
| * |
| * @exception IllegalAccessException if this {@code Field} object |
| * is enforcing Java language access control and the underlying |
| * field is either inaccessible or final. |
| * @exception IllegalArgumentException if the specified object is not an |
| * instance of the class or interface declaring the underlying |
| * field (or a subclass or implementor thereof), |
| * or if an unwrapping conversion fails. |
| * @exception NullPointerException if the specified object is null |
| * and the field is an instance field. |
| * @exception ExceptionInInitializerError if the initialization provoked |
| * by this method fails. |
| * @see Field#set |
| */ |
| @CallerSensitive |
| // Android-changed: set*(Object, ...) implemented natively. |
| @FastNative |
| public native void setLong(Object obj, long l) |
| throws IllegalArgumentException, IllegalAccessException; |
| |
| /** |
| * Sets the value of a field as a {@code float} on the specified object. |
| * This method is equivalent to |
| * {@code set(obj, fObj)}, |
| * where {@code fObj} is a {@code Float} object and |
| * {@code fObj.floatValue() == f}. |
| * |
| * @param obj the object whose field should be modified |
| * @param f the new value for the field of {@code obj} |
| * being modified |
| * |
| * @exception IllegalAccessException if this {@code Field} object |
| * is enforcing Java language access control and the underlying |
| * field is either inaccessible or final. |
| * @exception IllegalArgumentException if the specified object is not an |
| * instance of the class or interface declaring the underlying |
| * field (or a subclass or implementor thereof), |
| * or if an unwrapping conversion fails. |
| * @exception NullPointerException if the specified object is null |
| * and the field is an instance field. |
| * @exception ExceptionInInitializerError if the initialization provoked |
| * by this method fails. |
| * @see Field#set |
| */ |
| @CallerSensitive |
| // Android-changed: set*(Object, ...) implemented natively. |
| @FastNative |
| public native void setFloat(Object obj, float f) |
| throws IllegalArgumentException, IllegalAccessException; |
| |
| /** |
| * Sets the value of a field as a {@code double} on the specified object. |
| * This method is equivalent to |
| * {@code set(obj, dObj)}, |
| * where {@code dObj} is a {@code Double} object and |
| * {@code dObj.doubleValue() == d}. |
| * |
| * @param obj the object whose field should be modified |
| * @param d the new value for the field of {@code obj} |
| * being modified |
| * |
| * @exception IllegalAccessException if this {@code Field} object |
| * is enforcing Java language access control and the underlying |
| * field is either inaccessible or final. |
| * @exception IllegalArgumentException if the specified object is not an |
| * instance of the class or interface declaring the underlying |
| * field (or a subclass or implementor thereof), |
| * or if an unwrapping conversion fails. |
| * @exception NullPointerException if the specified object is null |
| * and the field is an instance field. |
| * @exception ExceptionInInitializerError if the initialization provoked |
| * by this method fails. |
| * @see Field#set |
| */ |
| @CallerSensitive |
| // Android-changed: set*(Object, ...) implemented natively. |
| @FastNative |
| public native void setDouble(Object obj, double d) |
| throws IllegalArgumentException, IllegalAccessException; |
| |
| /** |
| * @throws NullPointerException {@inheritDoc} |
| * @since 1.5 |
| */ |
| public <T extends Annotation> T getAnnotation(Class<T> annotationClass) { |
| Objects.requireNonNull(annotationClass); |
| // Android-changed: getAnnotation(Class) implemented differently. |
| return getAnnotationNative(annotationClass); |
| } |
| // Android-added: getAnnotation(Class) implemented differently. |
| @FastNative |
| private native <A extends Annotation> A getAnnotationNative(Class<A> annotationType); |
| |
| /** |
| * {@inheritDoc} |
| * @throws NullPointerException {@inheritDoc} |
| * @since 1.8 |
| */ |
| @Override |
| public <T extends Annotation> T[] getAnnotationsByType(Class<T> annotationClass) { |
| // Android-added: getAnnotationsByType(Class) implemented differently. |
| return AnnotatedElements.getDirectOrIndirectAnnotationsByType(this, annotationClass); |
| } |
| |
| // BEGIN Android-added: isAnnotationPresent(Class) overridden in Field. |
| @Override |
| public boolean isAnnotationPresent(Class<? extends Annotation> annotationType) { |
| if (annotationType == null) { |
| throw new NullPointerException("annotationType == null"); |
| } |
| return isAnnotationPresentNative(annotationType); |
| } |
| @FastNative |
| private native boolean isAnnotationPresentNative(Class<? extends Annotation> annotationType); |
| // END Android-added: isAnnotationPresent(Class) overridden in Field. |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| @FastNative |
| public native Annotation[] getDeclaredAnnotations(); |
| |
| // BEGIN Android-added: Methods for use by Android-specific code. |
| /** |
| * Returns the index of this field's ID in its dex file. |
| * |
| * @hide |
| */ |
| public int getDexFieldIndex() { |
| return dexFieldIndex; |
| } |
| |
| /** |
| * Returns the offset of the field within an instance, or for static fields, the class. |
| * |
| * @hide |
| */ |
| public int getOffset() { |
| return offset; |
| } |
| |
| /** |
| * @hide - export for use by {@code java.lang.invoke.*} |
| */ |
| @FastNative |
| public native long getArtField(); |
| // END Android-added: Methods for use by Android-specific code. |
| } |
