Source Code Cross Referenced for Forall.java in  » Rule-Engine » drolls-Rule-Engine » org » drools » rule » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Rule Engine » drolls Rule Engine » org.drools.rule 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Copyright 2006 JBoss Inc
003:         * 
004:         * Licensed under the Apache License, Version 2.0 (the "License");
005:         * you may not use this file except in compliance with the License.
006:         * You may obtain a copy of the License at
007:         * 
008:         *      http://www.apache.org/licenses/LICENSE-2.0
009:         * 
010:         * Unless required by applicable law or agreed to in writing, software
011:         * distributed under the License is distributed on an "AS IS" BASIS,
012:         * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013:         * See the License for the specific language governing permissions and
014:         * limitations under the License.
015:         */
016:
017:        package org.drools.rule;
018:
019:        import java.util.ArrayList;
020:        import java.util.Collections;
021:        import java.util.HashMap;
022:        import java.util.Iterator;
023:        import java.util.List;
024:        import java.util.Map;
025:
026:        /**
027:         * The forall conditional element.
028:         * 
029:         * @author etirelli
030:         */
031:        public class Forall extends ConditionalElement {
032:
033:            private static final long serialVersionUID = 400L;
034:
035:            // forall base pattern
036:            private Pattern basePattern;
037:            // foral remaining patterns
038:            private List remainingPatterns;
039:
040:            public Forall() {
041:                this (null, new ArrayList(1));
042:            }
043:
044:            public Forall(final Pattern basePattern) {
045:                this (basePattern, new ArrayList(1));
046:            }
047:
048:            public Forall(final Pattern basePattern,
049:                    final List remainingPatterns) {
050:                this .basePattern = basePattern;
051:                this .remainingPatterns = remainingPatterns;
052:            }
053:
054:            /* (non-Javadoc)
055:             * @see org.drools.rule.ConditionalElement#clone()
056:             */
057:            public Object clone() {
058:                return new Forall(this .basePattern, new ArrayList(
059:                        this .remainingPatterns));
060:            }
061:
062:            /**
063:             * Forall inner declarations are only provided by the base patterns
064:             * since it negates the remaining patterns
065:             */
066:            public Map getInnerDeclarations() {
067:                final Map inner = new HashMap(this .basePattern
068:                        .getOuterDeclarations());
069:                for (final Iterator it = this .remainingPatterns.iterator(); it
070:                        .hasNext();) {
071:                    inner.putAll(((Pattern) it.next()).getOuterDeclarations());
072:                }
073:                return inner;
074:            }
075:
076:            /**
077:             * Forall does not export any declarations
078:             */
079:            public Map getOuterDeclarations() {
080:                return Collections.EMPTY_MAP;
081:            }
082:
083:            /**
084:             * Forall can only resolve declarations from its base pattern
085:             */
086:            public Declaration resolveDeclaration(final String identifier) {
087:                return (Declaration) this .getInnerDeclarations()
088:                        .get(identifier);
089:            }
090:
091:            /**
092:             * @return the basePattern
093:             */
094:            public Pattern getBasePattern() {
095:                return this .basePattern;
096:            }
097:
098:            /**
099:             * @param basePattern the basePattern to set
100:             */
101:            public void setBasePattern(final Pattern basePattern) {
102:                this .basePattern = basePattern;
103:            }
104:
105:            /**
106:             * @return the remainingPatterns
107:             */
108:            public List getRemainingPatterns() {
109:                return this .remainingPatterns;
110:            }
111:
112:            /**
113:             * @param remainingPatterns the remainingPatterns to set
114:             */
115:            public void setRemainingPatterns(final List remainingPatterns) {
116:                this .remainingPatterns = remainingPatterns;
117:            }
118:
119:            /**
120:             * Adds one more pattern to the list of remaining patterns
121:             * @param pattern
122:             */
123:            public void addRemainingPattern(final Pattern pattern) {
124:                this.remainingPatterns.add(pattern);
125:            }
126:
127:        }
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