/*
 * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
 */
/*
 * 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
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package com.sun.org.apache.xpath.internal.objects;

This class represents an XPath boolean object, and is capable of converting the boolean to other types, such as a string.
@xsl.usageadvanced
/** * This class represents an XPath boolean object, and is capable of * converting the boolean to other types, such as a string. * @xsl.usage advanced */
public class XBoolean extends XObject { static final long serialVersionUID = -2964933058866100881L;
A true boolean object so we don't have to keep creating them.
@xsl.usageinternal
/** * A true boolean object so we don't have to keep creating them. * @xsl.usage internal */
public static final XBoolean S_TRUE = new XBooleanStatic(true);
A true boolean object so we don't have to keep creating them.
@xsl.usageinternal
/** * A true boolean object so we don't have to keep creating them. * @xsl.usage internal */
public static final XBoolean S_FALSE = new XBooleanStatic(false);
Value of the object. @serial
/** Value of the object. * @serial */
private final boolean m_val;
Construct a XBoolean object.
Params:
  • b – Value of the boolean object
/** * Construct a XBoolean object. * * @param b Value of the boolean object */
public XBoolean(boolean b) { super(); m_val = b; }
Construct a XBoolean object.
Params:
  • b – Value of the boolean object
/** * Construct a XBoolean object. * * @param b Value of the boolean object */
public XBoolean(Boolean b) { super(); m_val = b.booleanValue(); setObject(b); }
Tell that this is a CLASS_BOOLEAN.
Returns:type of CLASS_BOOLEAN
/** * Tell that this is a CLASS_BOOLEAN. * * @return type of CLASS_BOOLEAN */
public int getType() { return CLASS_BOOLEAN; }
Given a request type, return the equivalent string. For diagnostic purposes.
Returns:type string "#BOOLEAN"
/** * Given a request type, return the equivalent string. * For diagnostic purposes. * * @return type string "#BOOLEAN" */
public String getTypeString() { return "#BOOLEAN"; }
Cast result object to a number.
Returns:numeric value of the object value
/** * Cast result object to a number. * * @return numeric value of the object value */
public double num() { return m_val ? 1.0 : 0.0; }
Cast result object to a boolean.
Returns:The object value as a boolean
/** * Cast result object to a boolean. * * @return The object value as a boolean */
public boolean bool() { return m_val; }
Cast result object to a string.
Returns:The object's value as a string
/** * Cast result object to a string. * * @return The object's value as a string */
public String str() { return m_val ? "true" : "false"; }
Return a java object that's closest to the representation that should be handed to an extension.
Returns:The object's value as a java object
/** * Return a java object that's closest to the representation * that should be handed to an extension. * * @return The object's value as a java object */
public Object object() { if(null == m_obj) setObject(m_val); return m_obj; }
Tell if two objects are functionally equal.
Params:
  • obj2 – Object to compare to this
Throws:
Returns:True if the two objects are equal
/** * Tell if two objects are functionally equal. * * @param obj2 Object to compare to this * * @return True if the two objects are equal * * @throws javax.xml.transform.TransformerException */
public boolean equals(XObject obj2) { // In order to handle the 'all' semantics of // nodeset comparisons, we always call the // nodeset function. if (obj2.getType() == XObject.CLASS_NODESET) return obj2.equals(this); try { return m_val == obj2.bool(); } catch(javax.xml.transform.TransformerException te) { throw new com.sun.org.apache.xml.internal.utils.WrappedRuntimeException(te); } } }