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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;
- import org.apache.fop.fo.expr.PropertyException;
-
- /**
- * Superclass for properties that wrap an enumeration value
- */
- public final class EnumProperty extends Property {
-
- /** cache holding all canonical EnumProperty instances */
- private static final PropertyCache cache = new PropertyCache();
-
- /**
- * Inner class for creating EnumProperty instances
- */
- 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);
- }
-
- /**
- * Called by subclass if no match found.
- * @param value string containing the value to be checked
- * @return null (indicates that an appropriate match was not found)
- */
- public Property checkEnumValues(String value) {
- //log.error("Unknown enumerated value for property '"
- // + getPropName() + "': " + value);
- return super.checkEnumValues(value);
- }
-
- public Property convertProperty(Property p,
- PropertyList propertyList,
- FObj fo) throws PropertyException {
- if (p instanceof EnumProperty) {
- return p;
- } else {
- return super.convertProperty(p, propertyList, fo);
- }
- }
- }
-
- private final int value;
- private final String text;
-
- /**
- * @param explicitValue enumerated value to be set for this property
- * @param text the string value of the enum.
- */
- private EnumProperty(int explicitValue, String text) {
- this.value = explicitValue;
- this.text = text;
- }
-
- public static EnumProperty getInstance(int explicitValue, String text) {
- return (EnumProperty) cache.fetch(
- new EnumProperty(explicitValue, text));
- }
-
- /**
- * @return this.value
- */
- public int getEnum() {
- return this.value;
- }
-
- /**
- * @return this.value cast as an Object
- */
- public Object getObject() {
- return text;
- }
-
- /**
- * {@inheritDoc}
- */
- public boolean equals(Object obj) {
- if (obj instanceof EnumProperty) {
- EnumProperty ep = (EnumProperty)obj;
- return (ep.value == this.value)
- && ((ep.text == this.text)
- || (ep.text != null
- && ep.text.equals(this.text)));
- } else {
- return false;
- }
- }
-
- /**
- * {@inheritDoc}
- */
- public int hashCode() {
- return value + text.hashCode();
- }
- }
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