| /* |
| * 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.datatypes.Numeric; |
| import org.apache.fop.datatypes.PercentBaseContext; |
| import org.apache.fop.util.CompareUtil; |
| |
| /** |
| * A number quantity in XSL which is specified as an enum, such as "no-limit". |
| */ |
| public final class EnumNumber extends Property implements Numeric { |
| |
| /** cache holding all canonical EnumNumber instances */ |
| private static final PropertyCache<EnumNumber> CACHE |
| = new PropertyCache<EnumNumber>(); |
| |
| private final EnumProperty enumProperty; |
| |
| /** |
| * Constructor |
| * @param enumProperty the base EnumProperty |
| */ |
| private EnumNumber(Property enumProperty) { |
| this.enumProperty = (EnumProperty) enumProperty; |
| } |
| |
| /** |
| * Returns the canonical EnumNumber instance corresponding |
| * to the given Property |
| * |
| * @param enumProperty the base EnumProperty |
| * @return the canonical instance |
| */ |
| public static EnumNumber getInstance(Property enumProperty) { |
| return CACHE.fetch(new EnumNumber((EnumProperty) enumProperty)); |
| } |
| |
| /** {@inheritDoc} */ |
| public int getEnum() { |
| return enumProperty.getEnum(); |
| } |
| |
| /** {@inheritDoc} */ |
| public String getString() { |
| return enumProperty.toString(); |
| } |
| |
| /** {@inheritDoc} */ |
| public Object getObject() { |
| return enumProperty.getObject(); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| if (!(obj instanceof EnumNumber)) { |
| return false; |
| } |
| EnumNumber other = (EnumNumber) obj; |
| return CompareUtil.equal(enumProperty, other.enumProperty); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public int hashCode() { |
| return enumProperty.hashCode(); |
| } |
| |
| /** {@inheritDoc} */ |
| public int getDimension() { |
| return 0; |
| } |
| |
| /** |
| * {@inheritDoc} |
| * Always <code>true</code> for instances of this type |
| */ |
| public boolean isAbsolute() { |
| return true; |
| } |
| |
| /** |
| * {@inheritDoc} |
| * logs an error, because it's not supposed to be called |
| */ |
| public double getNumericValue(PercentBaseContext context) { |
| log.error("getNumericValue() called on " + enumProperty + " number"); |
| return 0; |
| } |
| |
| /** |
| * {@inheritDoc} |
| * logs an error, because it's not supposed to be called |
| */ |
| public int getValue(PercentBaseContext context) { |
| log.error("getValue() called on " + enumProperty + " number"); |
| return 0; |
| } |
| |
| /** |
| * {@inheritDoc} |
| * logs an error, because it's not supposed to be called |
| */ |
| public int getValue() { |
| log.error("getValue() called on " + enumProperty + " number"); |
| return 0; |
| } |
| |
| /** |
| * {@inheritDoc} |
| * logs an error, because it's not supposed to be called |
| */ |
| public double getNumericValue() { |
| log.error("getNumericValue() called on " + enumProperty + " number"); |
| return 0; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public Numeric getNumeric() { |
| return this; |
| } |
| |
| } |