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A processor for parsing, validating, serializing and manipulating XML, written in Java
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.xerces.impl.dv.xs;
import java.util.AbstractList;
import org.apache.xerces.impl.dv.InvalidDatatypeValueException;
import org.apache.xerces.impl.dv.ValidationContext;
import org.apache.xerces.xs.datatypes.ObjectList;
/**
* Represent the schema list types
*
* @xerces.internal
*
* @author Neeraj Bajaj, Sun Microsystems, inc.
* @author Sandy Gao, IBM
*
* @version $Id$
*/
public class ListDV extends TypeValidator{
// this method should never be called: XSSimpleTypeDecl is responsible for
// calling the item type for the convertion
public Object getActualValue(String content, ValidationContext context) throws InvalidDatatypeValueException{
return content;
}
// length of a list type is the number of items in the list
public int getDataLength(Object value) {
return ((ListData)value).getLength();
}
final static class ListData extends AbstractList implements ObjectList {
final Object[] data;
private String canonical;
public ListData(Object[] data) {
this.data = data;
}
public synchronized String toString() {
if (canonical == null) {
int len = data.length;
StringBuffer buf = new StringBuffer();
if (len > 0) {
buf.append(data[0].toString());
}
for (int i = 1; i < len; i++) {
buf.append(' ');
buf.append(data[i].toString());
}
canonical = buf.toString();
}
return canonical;
}
public int getLength() {
return data.length;
}
public boolean equals(Object obj) {
if (!(obj instanceof ListData))
return false;
Object[] odata = ((ListData)obj).data;
int count = data.length;
if (count != odata.length)
return false;
for (int i = 0 ; i < count ; i++) {
if (!data[i].equals(odata[i]))
return false;
}//end of loop
//everything went fine.
return true;
}
public int hashCode() {
int hash = 0;
for (int i = 0; i < data.length; ++i) {
hash ^= data[i].hashCode();
}
return hash;
}
public boolean contains(Object item) {
for (int i = 0;i < data.length; i++) {
if (item == data[i]) {
return true;
}
}
return false;
}
public Object item(int index) {
if (index < 0 || index >= data.length) {
return null;
}
return data[index];
}
/*
* List methods
*/
public Object get(int index) {
if (index >= 0 && index < data.length) {
return data[index];
}
throw new IndexOutOfBoundsException("Index: " + index);
}
public int size() {
return getLength();
}
}
} // class ListDV