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1 package org.drools.jsr94.rules; 2 3 import org.drools.AssertionException; 4 import org.drools.RetractionException; 5 import org.drools.RuleBase; 6 import org.drools.WorkingMemory; 7 8 import java.util.ArrayList; 9 import java.util.List; 10 11 /*** 12 * Provide access to the list of objects currently asserted to the working memory. 13 * 14 * @author <a href="mailto:thomas.diesler@softcon-itec.de">thomas diesler</a> 15 */ 16 public class WorkingMemoryImpl extends WorkingMemory 17 { 18 19 /*** contains the objects currently in the working memory. */ 20 private List objectList = new ArrayList(); 21 22 /*** 23 * Construct a new working memory for a ruleBase. 24 * 25 * @param ruleBase The rule base with which this memory is associated. 26 */ 27 WorkingMemoryImpl( RuleBase ruleBase ) 28 { 29 super( ruleBase ); 30 } 31 32 /*** 33 * Get a list of objects currently asserted to the working memory. 34 */ 35 public List getObjectList() 36 { 37 return objectList; 38 } 39 40 /*** Assert a new fact object into this working memory. 41 * 42 * @param object The object to assert. 43 * 44 * @throws AssertionException if an error occurs during assertion. 45 */ 46 public synchronized void assertObject( Object object ) throws AssertionException 47 { 48 super.assertObject( object ); 49 objectList.add( object ); 50 } 51 52 /*** Retract a fact object from this working memory. 53 * 54 * @param object The object to retract. 55 * 56 * @throws RetractionException if an error occurs during retraction. 57 */ 58 public synchronized void retractObject( Object object ) throws RetractionException 59 { 60 super.retractObject( object ); 61 objectList.remove( object ); 62 } 63 }

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