| /* Copyright 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 org.apache.xmlbeans.impl.common; |
| |
| import org.apache.xmlbeans.XmlObject; |
| import org.apache.xmlbeans.SimpleValue; |
| |
| /** |
| * A class to hold and compare a list of XmlObjects for use by keys |
| * keyrefs during validation. |
| */ |
| public class XmlObjectList |
| { |
| private final XmlObject[] _objects; |
| |
| /** |
| * Construct a new empty object list of the given fixed size. |
| */ |
| public XmlObjectList(int objectCount) { |
| _objects = new XmlObject[objectCount]; |
| } |
| |
| /** |
| * Set an object by index unless a value has been previously |
| * set at that location. |
| * |
| * @return true if the value was set, false if the value has |
| * already been set |
| */ |
| public boolean set(XmlObject o, int index) |
| { |
| if (_objects[index] != null) |
| return false; |
| |
| _objects[index] = o; |
| return true; |
| } |
| |
| /** |
| * Tests that all values have been set. Needed for keys. |
| */ |
| public boolean filled() { |
| for (int i = 0 ; i < _objects.length ; i++) |
| if (_objects[i] == null) return false; |
| |
| return true; |
| } |
| |
| /** |
| * Tests that all values have been set. Needed for keys. |
| */ |
| public int unfilled() |
| { |
| for (int i = 0 ; i < _objects.length ; i++) |
| if (_objects[i] == null) return i; |
| |
| return -1; |
| } |
| |
| public boolean equals(Object o) { |
| if (!( o instanceof XmlObjectList)) |
| return false; |
| |
| XmlObjectList other = (XmlObjectList)o; |
| |
| if (other._objects.length != this._objects.length) |
| return false; |
| |
| for (int i = 0 ; i < _objects.length ; i++) { |
| // Ignore missing values |
| if (_objects[i] == null || other._objects[i] == null) |
| return false; |
| |
| if (! _objects[i].valueEquals(other._objects[i])) |
| return false; |
| } |
| |
| return true; |
| } |
| |
| public int hashCode() |
| { |
| int h = 0; |
| |
| for (int i = 0 ; i < _objects.length ; i++) |
| if (_objects[i] != null) |
| h = 31 * h + _objects[i].valueHashCode(); |
| |
| return h; |
| } |
| |
| private static String prettytrim(String s) |
| { |
| int end; |
| for (end = s.length(); end > 0; end -= 1) |
| { |
| if (!XMLChar.isSpace(s.charAt(end - 1))) |
| break; |
| } |
| int start; |
| for (start = 0; start < end; start += 1) |
| { |
| if (!XMLChar.isSpace(s.charAt(start))) |
| break; |
| } |
| return s.substring(start, end); |
| } |
| |
| public String toString() { |
| StringBuilder b = new StringBuilder(); |
| |
| for (int i = 0 ; i < _objects.length ; i++) |
| { |
| if (i != 0) b.append(" "); |
| b.append(prettytrim(((SimpleValue)_objects[i]).getStringValue())); |
| } |
| |
| return b.toString(); |
| } |
| } |