001: /*
002: * $Id: StandardContext.java,v 1.2 2002/02/15 23:44:28 skavish Exp $
003: *
004: * ===========================================================================
005: *
006: * The JGenerator Software License, Version 1.0
007: *
008: * Copyright (c) 2000 Dmitry Skavish (skavish@usa.net). All rights reserved.
009: *
010: * Redistribution and use in source and binary forms, with or without
011: * modification, are permitted provided that the following conditions are met:
012: *
013: * 1. Redistributions of source code must retain the above copyright
014: * notice, this list of conditions and the following disclaimer.
015: *
016: * 2. Redistributions in binary form must reproduce the above copyright
017: * notice, this list of conditions and the following disclaimer in
018: * the documentation and/or other materials provided with the
019: * distribution.
020: *
021: * 3. The end-user documentation included with the redistribution, if
022: * any, must include the following acknowlegement:
023: * "This product includes software developed by Dmitry Skavish
024: * (skavish@usa.net, http://www.flashgap.com/)."
025: * Alternately, this acknowlegement may appear in the software itself,
026: * if and wherever such third-party acknowlegements normally appear.
027: *
028: * 4. The name "The JGenerator" must not be used to endorse or promote
029: * products derived from this software without prior written permission.
030: * For written permission, please contact skavish@usa.net.
031: *
032: * 5. Products derived from this software may not be called "The JGenerator"
033: * nor may "The JGenerator" appear in their names without prior written
034: * permission of Dmitry Skavish.
035: *
036: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
037: * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
038: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
039: * DISCLAIMED. IN NO EVENT SHALL DMITRY SKAVISH OR THE OTHER
040: * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
041: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
042: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
043: * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
044: * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
045: * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
046: * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
047: * SUCH DAMAGE.
048: *
049: */
050:
051: package org.openlaszlo.iv.flash.context;
052:
053: import org.openlaszlo.iv.flash.util.PropertyManager;
054:
055: import java.util.*;
056:
057: /**
058: * Standard generator context of name,value pairs.
059: *
060: * @author Dmitry Skavish
061: * @author James Taylor
062: */
063: public class StandardContext extends Context {
064:
065: private Hashtable table = new Hashtable();
066:
067: /**
068: * Creates empty context.
069: */
070: public StandardContext() {
071: }
072:
073: /**
074: * Creates context from specified hashtable.
075: *
076: * @param table hashtable to be used as storage for name,value pairs
077: */
078: public StandardContext(Hashtable table) {
079: this .table = table;
080: }
081:
082: /**
083: * Creates context in specifed parent context.
084: *
085: * @param context parent context
086: */
087: public StandardContext(Context context) {
088: setParent(context);
089: }
090:
091: /**
092: * Puts specified value under specified name into this context.
093: *
094: * @param name the specified name
095: * @param value the specified value
096: */
097: public void setValue(String name, String value) {
098: if (!PropertyManager.varCaseSensitive)
099: name = name.toUpperCase();
100: table.put(name, value);
101: }
102:
103: /**
104: * Returns value by name from this context or from it's parent context.
105: *
106: * @param name name of the value to be retrieved
107: * @return value of the specified name
108: */
109: public String getValue(String name) {
110: String _name = PropertyManager.varCaseSensitive ? name : name
111: .toUpperCase();
112: String value = (String) table.get(_name);
113: if (value != null)
114: return value;
115: return getValueFromParent(name);
116: }
117:
118: protected StandardContext(StandardContext from) {
119: table = (Hashtable) from.table.clone();
120: setParent(from.getParent());
121: }
122:
123: public Object clone() {
124: return new StandardContext(this);
125: }
126: }
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