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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.
*/
/* $Id$ */
package org.apache.fop.fo.properties;
import org.apache.fop.fo.FObj;
import org.apache.fop.fo.PropertyList;
/**
* Superclass for properties that wrap a character value
* TODO convert character value to int in order to denote unicode scalar value
* instead of a single UTF-16 code element
*/
public final class CharacterProperty extends Property {
/**
* Inner class for creating instances of CharacterProperty
*/
public static class Maker extends PropertyMaker {
/**
* @param propId the id of the property for which a Maker should be created
*/
public Maker(int propId) {
super(propId);
}
/** {@inheritDoc} */
public Property make(PropertyList propertyList, String value,
FObj fo) {
char c = value.charAt(0);
return CharacterProperty.getInstance(c);
}
}
/** cache containing all canonical CharacterProperty instances */
private static final PropertyCache<CharacterProperty> CACHE
= new PropertyCache<CharacterProperty>();
private final char character;
/**
* @param character character value to be wrapped in this property
*/
private CharacterProperty(char character) {
this.character = character;
}
/**
* Get character property instance for character.
* @param character the character
* @return the character property instance
*/
public static CharacterProperty getInstance(char character) {
return CACHE.fetch(new CharacterProperty(character));
}
/**
* @return this.character cast as an Object
*/
public Object getObject() {
return new Character(character);
}
/**
* @return this.character
*/
public char getCharacter() {
return this.character;
}
/**
* @return this.character cast as a String
*/
public String getString() {
return new Character(character).toString();
}
@Override
public boolean equals(Object obj) {
if (obj instanceof CharacterProperty) {
return (character == ((CharacterProperty) obj).character);
} else {
return false;
}
}
@Override
public int hashCode() {
return character;
}
}
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