| /* |
| * reserved comment block |
| * DO NOT REMOVE OR ALTER! |
| */ |
| /* |
| * Copyright 2002,2003-2004 The Apache Software Foundation. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.sun.org.apache.xerces.internal.impl.xs.util; |
| |
| import java.lang.reflect.Array; |
| import java.util.AbstractList; |
| import java.util.Vector; |
| |
| import com.sun.org.apache.xerces.internal.xs.StringList; |
| |
| /** |
| * Containts a list of Object's. |
| * |
| * @xerces.internal |
| * |
| * @author Sandy Gao, IBM |
| * |
| * @version $Id: StringListImpl.java,v 1.7 2010-11-01 04:40:06 joehw Exp $ |
| */ |
| public final class StringListImpl extends AbstractList implements StringList { |
| |
| /** |
| * An immutable empty list. |
| */ |
| public static final StringListImpl EMPTY_LIST = new StringListImpl(new String[0], 0); |
| |
| // The array to hold all data |
| private final String[] fArray; |
| // Number of elements in this list |
| private final int fLength; |
| |
| // REVISIT: this is temp solution. In general we need to use this class |
| // instead of the Vector. |
| private final Vector fVector; |
| |
| public StringListImpl(Vector v) { |
| fVector = v; |
| fLength = (v == null) ? 0 : v.size(); |
| fArray = null; |
| } |
| |
| /** |
| * Construct an XSObjectList implementation |
| * |
| * @param array the data array |
| * @param length the number of elements |
| */ |
| public StringListImpl(String[] array, int length) { |
| fArray = array; |
| fLength = length; |
| fVector = null; |
| } |
| |
| /** |
| * The number of <code>Objects</code> in the list. The range of valid |
| * child node indices is 0 to <code>length-1</code> inclusive. |
| */ |
| public int getLength() { |
| return fLength; |
| } |
| |
| /** |
| * Checks if the <code>GenericString</code> <code>item</code> is a member |
| * of this list. |
| * @param item <code>GenericString</code> whose presence in this list is |
| * to be tested. |
| * @return True if this list contains the <code>GenericString</code> |
| * <code>item</code>. |
| */ |
| public boolean contains(String item) { |
| if (fVector != null) { |
| return fVector.contains(item); |
| } |
| if (item == null) { |
| for (int i = 0; i < fLength; i++) { |
| if (fArray[i] == null) |
| return true; |
| } |
| } |
| else { |
| for (int i = 0; i < fLength; i++) { |
| if (item.equals(fArray[i])) |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| public String item(int index) { |
| if (index < 0 || index >= fLength) { |
| return null; |
| } |
| if (fVector != null) { |
| return (String)fVector.elementAt(index); |
| } |
| return fArray[index]; |
| } |
| |
| /* |
| * List methods |
| */ |
| |
| public Object get(int index) { |
| if (index >= 0 && index < fLength) { |
| if (fVector != null) { |
| return fVector.elementAt(index); |
| } |
| return fArray[index]; |
| } |
| throw new IndexOutOfBoundsException("Index: " + index); |
| } |
| |
| public int size() { |
| return getLength(); |
| } |
| |
| public Object[] toArray() { |
| if (fVector != null) { |
| return fVector.toArray(); |
| } |
| Object[] a = new Object[fLength]; |
| toArray0(a); |
| return a; |
| } |
| |
| public Object[] toArray(Object[] a) { |
| if (fVector != null) { |
| return fVector.toArray(a); |
| } |
| if (a.length < fLength) { |
| Class arrayClass = a.getClass(); |
| Class componentType = arrayClass.getComponentType(); |
| a = (Object[]) Array.newInstance(componentType, fLength); |
| } |
| toArray0(a); |
| if (a.length > fLength) { |
| a[fLength] = null; |
| } |
| return a; |
| } |
| |
| private void toArray0(Object[] a) { |
| if (fLength > 0) { |
| System.arraycopy(fArray, 0, a, 0, fLength); |
| } |
| } |
| |
| } // class StringListImpl |