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From rwaldh...@apache.org
Subject cvs commit: jakarta-commons-sandbox/functor project.xml
Date Wed, 05 Mar 2003 00:16:40 GMT
rwaldhoff    2003/03/04 16:16:40

  Modified:    functor/src/test/org/apache/commons/functor/example
                        FlexiMapExample.java
               functor  project.xml
  Log:
  add multimap example
  
  Revision  Changes    Path
  1.3       +119 -25   jakarta-commons-sandbox/functor/src/test/org/apache/commons/functor/example/FlexiMapExample.java
  
  Index: FlexiMapExample.java
  ===================================================================
  RCS file: /home/cvs/jakarta-commons-sandbox/functor/src/test/org/apache/commons/functor/example/FlexiMapExample.java,v
  retrieving revision 1.2
  retrieving revision 1.3
  diff -u -r1.2 -r1.3
  --- FlexiMapExample.java	4 Mar 2003 23:11:14 -0000	1.2
  +++ FlexiMapExample.java	5 Mar 2003 00:16:38 -0000	1.3
  @@ -56,8 +56,11 @@
    */
   package org.apache.commons.functor.example;
   
  +import java.util.ArrayList;
   import java.util.Collection;
   import java.util.HashMap;
  +import java.util.Iterator;
  +import java.util.List;
   import java.util.Map;
   import java.util.Set;
   
  @@ -73,6 +76,7 @@
   import org.apache.commons.functor.adapter.UnaryProcedureUnaryFunction;
   import org.apache.commons.functor.core.ConstantFunction;
   import org.apache.commons.functor.core.IdentityFunction;
  +import org.apache.commons.functor.core.IsInstanceOf;
   import org.apache.commons.functor.core.IsNull;
   import org.apache.commons.functor.core.RightIdentityFunction;
   import org.apache.commons.functor.core.composite.ConditionalUnaryFunction;
  @@ -154,6 +158,53 @@
           assertEquals( new Integer(0), map.get("key") );
       }
   
  +	public void testIntegerValuesOnly() {
  +		Map map = makeIntegerValuedMap();
  +		map.put("key", new Integer(2));        
  +		assertEquals( new Integer(2), map.get("key") );
  +		try {
  +			map.put("key2","value");
  +			fail("Expected ClassCastException");
  +		} catch(ClassCastException e) {
  +			// expected
  +		}                		
  +	}
  +
  +	public void testMultiMap() {
  +		Map map = makeMultiMap();
  +
  +		map.put("key", "value 1");
  +		
  +		{
  +			Collection result = (Collection)(map.get("key"));
  +			assertEquals(1,result.size());
  +			assertEquals("value 1", result.iterator().next());
  +		}
  +
  +		map.put("key", "value 2");
  +
  +		{
  +			Collection result = (Collection)(map.get("key"));
  +			assertEquals(2,result.size());
  +			Iterator iter = result.iterator();
  +			assertEquals("value 1", iter.next());
  +			assertEquals("value 2", iter.next());
  +		}
  +
  +		map.put("key", "value 3");
  +
  +		{
  +			Collection result = (Collection)(map.get("key"));
  +			assertEquals(3,result.size());
  +			Iterator iter = result.iterator();
  +			assertEquals("value 1", iter.next());
  +			assertEquals("value 2", iter.next());
  +			assertEquals("value 3", iter.next());
  +		}
  +
  +	}
  +
  +
       static class FlexiMap implements Map {
   
           public FlexiMap(BinaryFunction putfn, BinaryFunction getfn) {
  @@ -244,31 +295,74 @@
           );
       }
   
  -    private Map makeNullAsZeroMap() {
  -        return new FlexiMap(
  -            IgnoreLeftFunction.adapt(                        
  -                new ConditionalUnaryFunction(
  -                    IsNull.getIsNullPredicate(),
  -                    new ConstantFunction(new Integer(0)),
  -                    IdentityFunction.getIdentityFunction()
  -                )
  -            ),
  -            null
  -        );
  -    }
  +	private Map makeNullAsZeroMap() {
  +		return new FlexiMap(
  +			IgnoreLeftFunction.adapt(                        
  +				new ConditionalUnaryFunction(
  +					IsNull.getIsNullPredicate(),
  +					new ConstantFunction(new Integer(0)),
  +					IdentityFunction.getIdentityFunction()
  +				)
  +			),
  +			null
  +		);
  +	}
  +
  +	private Map makeIntegerValuedMap() {
  +		return new FlexiMap(
  +			IgnoreLeftFunction.adapt(                        
  +				new ConditionalUnaryFunction(
  +					new IsInstanceOf(Integer.class),
  +					IdentityFunction.getIdentityFunction(),
  +					UnaryProcedureUnaryFunction.adapt(throwCCE)
  +				)
  +			),
  +			null
  +		);
  +	}
  +
  +	private Map makeMultiMap() {
  +		return new FlexiMap(
  +			new BinaryFunction() {
  +				public Object evaluate(Object oldval, Object newval) {
  +					List list = null;
  +					if(null == oldval) {
  +						list = new ArrayList();
  +					} else {
  +						list = (List)oldval;
  +					}
  +					list.add(newval);
  +					return list;
  +				}
  +			},
  +			null
  +		);
  +	}
   
       private interface UniversalProcedure extends Procedure, UnaryProcedure, BinaryProcedure
{ }
   
  -    private UniversalProcedure throwNPE = new UniversalProcedure() {
  -        public void run() {
  -            throw new NullPointerException();
  -        }
  -        public void run(Object obj) {
  -            run();
  -        }
  -        public void run(Object left, Object right) {
  -            run();
  -        }
  -    };
  +	private UniversalProcedure throwNPE = new UniversalProcedure() {
  +		public void run() {
  +			throw new NullPointerException();
  +		}
  +		public void run(Object obj) {
  +			run();
  +		}
  +		public void run(Object left, Object right) {
  +			run();
  +		}
  +	};
  +    
  +	private UniversalProcedure throwCCE = new UniversalProcedure() {
  +		public void run() {
  +			throw new ClassCastException();
  +		}
  +		public void run(Object obj) {
  +			run();
  +		}
  +		public void run(Object left, Object right) {
  +			run();
  +		}
  +	};
       
   }
  
  
  
  1.2       +1 -1      jakarta-commons-sandbox/functor/project.xml
  
  Index: project.xml
  ===================================================================
  RCS file: /home/cvs/jakarta-commons-sandbox/functor/project.xml,v
  retrieving revision 1.1
  retrieving revision 1.2
  diff -u -r1.1 -r1.2
  --- project.xml	27 Jan 2003 19:33:37 -0000	1.1
  +++ project.xml	5 Mar 2003 00:16:39 -0000	1.2
  @@ -64,7 +64,7 @@
     <dependencies>
       <dependency>
         <id>junit</id>
  -      <version>3.7</version>
  +      <version>3.8.1</version>
       </dependency>
   
       <!-- these two aren't really required by functor, but by maven -->
  
  
  

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