Java example source code file (ArrayReference.java)

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Java - Java tags/keywords

arrayreference, classnotloadedexception, invalidtypeexception, list, objectreference, util, value

The ArrayReference.java Java example source code

/*
 * Copyright (c) 1998, 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 com.sun.jdi;

import java.util.List;

/**
 * Provides access to an array object and its components in the target VM.
 * Each array component is mirrored by a {@link Value} object.
 * The array components, in aggregate, are placed in {@link java.util.List}
 * objects instead of arrays for consistency with the rest of the API and
 * for interoperability with other APIs.
 *
 * @author Robert Field
 * @author Gordon Hirsch
 * @author James McIlree
 * @since  1.3
 */
@jdk.Exported
public interface ArrayReference extends ObjectReference {

    /**
     * Returns the number of components in this array.
     *
     * @return the integer count of components in this array.
     */
    int length();

    /**
     * Returns an array component value.
     *
     * @param index the index of the component to retrieve
     * @return the {@link Value} at the given index.
     * @throws java.lang.IndexOutOfBoundsException if
     * <CODE>index is outside the range of this array,
     * that is, if either of the following are true:
     * <PRE>
     *    <I>index < 0
     *    <I>index >= {@link #length() length()} 

*/ Value getValue(int index); /** * Returns all of the components in this array. * * @return a list of {@link Value} objects, one for each array * component ordered by array index. For zero length arrays, * an empty list is returned. */ List<Value> getValues(); /** * Returns a range of array components. * * @param index the index of the first component to retrieve * @param length the number of components to retrieve, or -1 to * retrieve all components to the end of this array. * @return a list of {@link Value} objects, one for each requested * array component ordered by array index. When there are * no elements in the specified range (e.g. * <CODE>length is zero) an empty list is returned * * @throws java.lang.IndexOutOfBoundsException if the range * specified with <CODE>index and * <CODE>length is not within the range of the array, * that is, if either of the following are true: * <PRE> * <I>index < 0 * <I>index > {@link #length() length()} * or if <CODE>length != -1 and * either of the following are true: * <PRE> * <I>length < 0 * <I>index + length > {@link #length() length()} */ List<Value> getValues(int index, int length); /** * Replaces an array component with another value. * <p> * Object values must be assignment compatible with the component type * (This implies that the component type must be loaded through the * declaring class's class loader). Primitive values must be * either assignment compatible with the component type or must be * convertible to the component type without loss of information. * See JLS section 5.2 for more information on assignment * compatibility. * * @param value the new value * @param index the index of the component to set * @throws java.lang.IndexOutOfBoundsException if * <CODE>index is outside the range of this array, * that is, if either of the following are true: * <PRE> * <I>index < 0 * <I>index >= {@link #length() length()} * @throws InvalidTypeException if the type of <CODE>value * is not compatible with the declared type of array components. * @throws ClassNotLoadedException if the array component type * has not yet been loaded * through the appropriate class loader. * @throws VMCannotBeModifiedException if the VirtualMachine is read-only - see {@link VirtualMachine#canBeModified()}. * * @see ArrayType#componentType() */ void setValue(int index, Value value) throws InvalidTypeException, ClassNotLoadedException; /** * Replaces all array components with other values. If the given * list is larger in size than the array, the values at the * end of the list are ignored. * <p> * Object values must be assignment compatible with the element type * (This implies that the component type must be loaded through the * enclosing class's class loader). Primitive values must be * either assignment compatible with the component type or must be * convertible to the component type without loss of information. * See JLS section 5.2 for more information on assignment * compatibility. * * @param values a list of {@link Value} objects to be placed * in this array. If <CODE>values.size() is * less that the length of the array, the first * <CODE>values.size() elements are set. * @throws InvalidTypeException if any of the * new <CODE>values * is not compatible with the declared type of array components. * @throws ClassNotLoadedException if the array component * type has not yet been loaded * through the appropriate class loader. * @throws VMCannotBeModifiedException if the VirtualMachine is read-only - see {@link VirtualMachine#canBeModified()}. * * @see ArrayType#componentType() */ void setValues(List<? extends Value> values) throws InvalidTypeException, ClassNotLoadedException; /** * Replaces a range of array components with other values. * <p> * Object values must be assignment compatible with the component type * (This implies that the component type must be loaded through the * enclosing class's class loader). Primitive values must be * either assignment compatible with the component type or must be * convertible to the component type without loss of information. * See JLS section 5.2 for more information on assignment * compatibility. * * @param index the index of the first component to set. * @param values a list of {@link Value} objects to be placed * in this array. * @param srcIndex the index of the first source value to use. * @param length the number of components to set, or -1 to set * all components to the end of this array or the end of * <CODE>values (whichever comes first). * @throws InvalidTypeException if any element of * <CODE>values * is not compatible with the declared type of array components. * @throws java.lang.IndexOutOfBoundsException if the * array range specified with * <CODE>index and length * is not within the range of the array, * or if the source range specified with * <CODE>srcIndex and length * is not within <CODE>values, * that is, if any of the following are true: * <PRE> * <I>index < 0 * <I>index > {@link #length() length()} * <I>srcIndex < 0 * <I>srcIndex > values.size() * or if <CODE>length != -1 and any of the * following are true: * <PRE> * <I>length < 0 * <I>index + length > {@link #length() length()} * <I>srcIndex + length > values.size() * @throws VMCannotBeModifiedException if the VirtualMachine is read-only - see {@link VirtualMachine#canBeModified()}. * @see ArrayType#componentType() */ void setValues(int index, List<? extends Value> values, int srcIndex, int length) throws InvalidTypeException, ClassNotLoadedException; }