001: /*
002: * $Header: /home/cvs/jakarta-tomcat-4.0/catalina/src/share/org/apache/naming/ResourceLinkRef.java,v 1.1 2001/11/08 19:30:50 remm Exp $
003: * $Revision: 1.1 $
004: * $Date: 2001/11/08 19:30:50 $
005: *
006: * ====================================================================
007: *
008: * The Apache Software License, Version 1.1
009: *
010: * Copyright (c) 1999 The Apache Software Foundation. All rights
011: * reserved.
012: *
013: * Redistribution and use in source and binary forms, with or without
014: * modification, are permitted provided that the following conditions
015: * are met:
016: *
017: * 1. Redistributions of source code must retain the above copyright
018: * notice, this list of conditions and the following disclaimer.
019: *
020: * 2. Redistributions in binary form must reproduce the above copyright
021: * notice, this list of conditions and the following disclaimer in
022: * the documentation and/or other materials provided with the
023: * distribution.
024: *
025: * 3. The end-user documentation included with the redistribution, if
026: * any, must include the following acknowlegement:
027: * "This product includes software developed by the
028: * Apache Software Foundation (http://www.apache.org/)."
029: * Alternately, this acknowlegement may appear in the software itself,
030: * if and wherever such third-party acknowlegements normally appear.
031: *
032: * 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
033: * Foundation" must not be used to endorse or promote products derived
034: * from this software without prior written permission. For written
035: * permission, please contact apache@apache.org.
036: *
037: * 5. Products derived from this software may not be called "Apache"
038: * nor may "Apache" appear in their names without prior written
039: * permission of the Apache Group.
040: *
041: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
042: * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
043: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
044: * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
045: * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
046: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
047: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
048: * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
049: * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
050: * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
051: * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
052: * SUCH DAMAGE.
053: * ====================================================================
054: *
055: * This software consists of voluntary contributions made by many
056: * individuals on behalf of the Apache Software Foundation. For more
057: * information on the Apache Software Foundation, please see
058: * <http://www.apache.org/>.
059: *
060: * [Additional notices, if required by prior licensing conditions]
061: *
062: */
063:
064: package org.apache.naming;
065:
066: import java.util.Hashtable;
067: import javax.naming.Reference;
068: import javax.naming.Context;
069: import javax.naming.StringRefAddr;
070:
071: /**
072: * Represents a reference address to a resource.
073: *
074: * @author Remy Maucherat
075: * @version $Revision: 1.1 $ $Date: 2001/11/08 19:30:50 $
076: */
077:
078: public class ResourceLinkRef extends Reference {
079:
080: // -------------------------------------------------------------- Constants
081:
082: /**
083: * Default factory for this reference.
084: */
085: public static final String DEFAULT_FACTORY = org.apache.naming.factory.Constants.DEFAULT_RESOURCE_LINK_FACTORY;
086:
087: /**
088: * Description address type.
089: */
090: public static final String GLOBALNAME = "globalName";
091:
092: // ----------------------------------------------------------- Constructors
093:
094: /**
095: * ResourceLink Reference.
096: *
097: * @param resourceClass Resource class
098: * @param globalName Global name
099: */
100: public ResourceLinkRef(String resourceClass, String globalName) {
101: this (resourceClass, globalName, null, null);
102: }
103:
104: /**
105: * ResourceLink Reference.
106: *
107: * @param resourceClass Resource class
108: * @param globalName Global name
109: */
110: public ResourceLinkRef(String resourceClass, String globalName,
111: String factory, String factoryLocation) {
112: super (resourceClass, factory, factoryLocation);
113: StringRefAddr refAddr = null;
114: if (globalName != null) {
115: refAddr = new StringRefAddr(GLOBALNAME, globalName);
116: add(refAddr);
117: }
118: }
119:
120: // ----------------------------------------------------- Instance Variables
121:
122: // ------------------------------------------------------ Reference Methods
123:
124: /**
125: * Retrieves the class name of the factory of the object to which this
126: * reference refers.
127: */
128: public String getFactoryClassName() {
129: String factory = super .getFactoryClassName();
130: if (factory != null) {
131: return factory;
132: } else {
133: factory = System.getProperty(Context.OBJECT_FACTORIES);
134: if (factory != null) {
135: return null;
136: } else {
137: return DEFAULT_FACTORY;
138: }
139: }
140: }
141:
142: // ------------------------------------------------------------- Properties
143:
144: }
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