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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.datatypes.Numeric;
- import org.apache.fop.datatypes.PercentBaseContext;
- import org.apache.fop.fo.expr.PropertyException;
-
- /**
- * 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 cache = new PropertyCache();
-
- 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 (EnumNumber)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();
- }
-
- /** {@inheritDoc} */
- public boolean equals(Object obj) {
- if (obj instanceof EnumNumber) {
- return (((EnumNumber)obj).enumProperty == this.enumProperty);
- } else {
- return false;
- }
- }
-
- /** {@inheritDoc} */
- 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) throws PropertyException {
- 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;
- }
-
- }
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