Source Code Cross Referenced for NameClassPair.java in  » Apache-Harmony-Java-SE » javax-package » javax » naming » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Apache Harmony Java SE » javax package » javax.naming 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /* 
002:         * Licensed to the Apache Software Foundation (ASF) under one or more
003:         * contributor license agreements.  See the NOTICE file distributed with
004:         * this work for additional information regarding copyright ownership.
005:         * The ASF licenses this file to You under the Apache License, Version 2.0
006:         * (the "License"); you may not use this file except in compliance with
007:         * the License.  You may obtain a copy of the License at
008:         * 
009:         *     http://www.apache.org/licenses/LICENSE-2.0
010:         * 
011:         * Unless required by applicable law or agreed to in writing, software
012:         * distributed under the License is distributed on an "AS IS" BASIS,
013:         * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014:         * See the License for the specific language governing permissions and
015:         * limitations under the License.
016:         */
017:
018:        package javax.naming;
019:
020:        import java.io.Serializable;
021:
022:        import org.apache.harmony.jndi.internal.nls.Messages;
023:
024:        /**
025:         * <code>NameClassPair</code> associates a name in a naming service with a
026:         * specified class name and also with a relative flag. In JNDI,
027:         * <code>NameClassPair</code> is extended by <code>javax.naming.Binding</code>;
028:         * <code>Binding</code> objects are used in <code>javax.naming.Context</code>
029:         * implementations.
030:         * <p>
031:         * A <code>NameClassPair</code> object is not thread-safe unless appropriate
032:         * synchronization is applied to any code manipulating these objects.
033:         * </p>
034:         * <p>
035:         * As this class implements the <code>Serializable</code> interface, it is
036:         * important that fields below are declared with the same names.
037:         * </p>
038:         */
039:        public class NameClassPair implements  Serializable {
040:
041:            private static final long serialVersionUID = 5620776610160863339L;
042:
043:            /**
044:             * The name used in a naming service. This field may be null and has default
045:             * value of null.
046:             * 
047:             * @serial
048:             */
049:            private String name;
050:
051:            /**
052:             * The class of an object represented by this name in a naming service. This
053:             * field may be null and has default value null.
054:             * 
055:             * @serial
056:             */
057:            private String className;
058:
059:            /**
060:             * 
061:             * @serial
062:             */
063:            private String fullName;
064:
065:            /**
066:             * This flag indicates whether the name s used in a naming service is
067:             * relative to the context. It is set by setRelative and is not derived.
068:             * This field has default value true. If this is set to false then the name
069:             * is not relative and is actually a URL.
070:             * 
071:             * @serial
072:             */
073:            private boolean isRel;
074:
075:            /**
076:             * Construct a <code>NameClassPair</code> from a name and a class. Both
077:             * arguments can be null. Relative flag is true.
078:             * 
079:             * @param name
080:             *            a name used in naming service
081:             * @param className
082:             *            a class name
083:             */
084:            public NameClassPair(String name, String className) {
085:                this (name, className, true);
086:            }
087:
088:            /**
089:             * Construct a <code>NameClassPair</code> from a name, a class and a
090:             * relative flag. The name and class arguments can be null.
091:             * 
092:             * @param name
093:             *            a name used in naming service
094:             * @param className
095:             *            a class name
096:             * @param relative
097:             *            a relative flag
098:             */
099:            public NameClassPair(String name, String className, boolean relative) {
100:                if (name == null) {
101:                    // jndi.00=name must not be null
102:                    throw new IllegalArgumentException(Messages
103:                            .getString("jndi.00")); //$NON-NLS-1$
104:                }
105:                this .name = name;
106:                this .className = className;
107:                this .isRel = relative;
108:                this .fullName = null;
109:            }
110:
111:            /**
112:             * Returns the value of the class which may be null.
113:             * 
114:             * @return the value of the class which may be null.
115:             */
116:            public String getClassName() {
117:                return className;
118:            }
119:
120:            /**
121:             * Returns the value of the name field which may be null.
122:             * 
123:             * @return the value of the name field which may be null.
124:             */
125:            public String getName() {
126:                return name;
127:            }
128:
129:            /**
130:             * Returns the value of the relative flag.
131:             * 
132:             * @return the value of the relative flag.
133:             */
134:            public boolean isRelative() {
135:                return isRel;
136:            }
137:
138:            /**
139:             * Set the class of this object. The argument can be null.
140:             * 
141:             * @param className
142:             *            a class name
143:             */
144:            public void setClassName(String className) {
145:                this .className = className;
146:            }
147:
148:            /**
149:             * Set the name of this object. The argument can be null.
150:             * 
151:             * @param name
152:             *            a name used in naming service
153:             */
154:            public void setName(String name) {
155:                if (name == null) {
156:                    // jndi.00=name must not be null
157:                    throw new IllegalArgumentException(Messages
158:                            .getString("jndi.00")); //$NON-NLS-1$
159:                }
160:                this .name = name;
161:            }
162:
163:            /**
164:             * Set the isRelative flag field of this object.
165:             * 
166:             * @param relative
167:             *            a relative flag
168:             */
169:            public void setRelative(boolean relative) {
170:                this .isRel = relative;
171:            }
172:
173:            /**
174:             * Returns the value of the full name field which may be null.
175:             * 
176:             * @return the value of the full name field which may be null.
177:             * 
178:             * @throws UnsupportedOperationException
179:             */
180:            public String getNameInNamespace() {
181:                if (fullName == null) {
182:                    // jndi.01=full name doesn't apply to this binding
183:                    throw new UnsupportedOperationException(Messages
184:                            .getString("jndi.01")); //$NON-NLS-1$
185:                }
186:                return fullName;
187:            }
188:
189:            /**
190:             * Set the full name of this object. The argument can be null.
191:             * 
192:             * @param fullName
193:             *            a full name
194:             */
195:            public void setNameInNamespace(String fullName) {
196:                this .fullName = fullName;
197:            }
198:
199:            /**
200:             * If the flag is set to false then the string is preceded with "(not
201:             * relative)" and then has the name value, ": " and the class value.
202:             * 
203:             * @return a string representation of this object
204:             */
205:            @Override
206:            public String toString() {
207:                StringBuffer buf = new StringBuffer();
208:                if (!isRel) {
209:                    buf.append("(not relative)"); //$NON-NLS-1$
210:                }
211:                buf.append(getName());
212:                buf.append(": "); //$NON-NLS-1$
213:                buf.append(getClassName()); // getClassName() is overridden by subclass
214:                return buf.toString();
215:            }
216:
217:        }
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