org.apache.xmlbeans.impl.common.XmlObjectList Maven / Gradle / Ivy
/* 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();
}
}