Examples of org.apache.commons.collections.MultiMap

org.apache.commons.collections.MultiMap
Defines a map that holds a collection of values against each key.
A MultiMap is a Map with slightly different semantics. Putting a value into the map will add the value to a Collection at that key. Getting a value will return a Collection, holding all the values put to that key.
For example:
```
 MultiMap mhm = new MultiHashMap(); mhm.put(key, "A"); mhm.put(key, "B"); mhm.put(key, "C"); Collection coll = (Collection) mhm.get(key);
```
coll will be a collection containing "A", "B", "C".
NOTE: Additional methods were added to this interface in Commons Collections 3.1. These were added solely for documentation purposes and do not change the interface as they were defined in the superinterface Map anyway. @since Commons Collections 2.0 @version $Revision: 1.12 $ $Date: 2004/03/14 15:33:57 $ @author Christopher Berry @author James Strachan @author Stephen Colebourne

        assertEquals(true, map.containsValue("A", "AA"));
        assertEquals(false, map.containsValue("A", "AB"));
    }


    public void testPutAll_Map1() {
        MultiMap original = new MultiValueMap();
        original.put("key", "object1");
        original.put("key", "object2");


        MultiValueMap test = new MultiValueMap();
        test.put("keyA", "objectA");
        test.put("key", "object0");
        test.putAll(original);

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{


    public void testOverridePreferred() throws Exception
    {
        DefaultAppBloodhound bh = new DefaultAppBloodhound();
        MultiMap overrides = new MultiValueMap();
        overrides.put("properties", new TestDescriptorParserDefault());


        // test with default annotation values
        bh.mergeParserOverrides(overrides);
        assertEquals(1, bh.parserRegistry.size());
        DescriptorParser result = bh.parserRegistry.get("properties");

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    }


    public void testBothPreferredWithWeight() throws Exception
    {
        DefaultAppBloodhound bh = new DefaultAppBloodhound();
        MultiMap overrides = new MultiValueMap();
        overrides.put("properties", new TestDescriptorParserDefault());
        overrides.put("properties", new TestDescriptorParserPreferred());


        // test with weigh attribute (we have 3 candidates now)
        bh.mergeParserOverrides(overrides);
        assertEquals(1, bh.parserRegistry.size());
        DescriptorParser result = bh.parserRegistry.get("properties");

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    }


    public void testOverrideWithoutPreferred() throws Exception
    {
        DefaultAppBloodhound bh = new DefaultAppBloodhound();
        MultiMap overrides = new MultiValueMap();
        overrides.put("properties", new TestDescriptorParserNoAnnotation());


        // test with weigh attribute (we have 3 candidates now)
        bh.mergeParserOverrides(overrides);
        assertEquals(1, bh.parserRegistry.size());
        DescriptorParser result = bh.parserRegistry.get("properties");

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    }


    public void testMixedOverrides() throws Exception
    {
        DefaultAppBloodhound bh = new DefaultAppBloodhound();
        MultiMap overrides = new MultiValueMap();
        overrides.put("properties", new TestDescriptorParserNoAnnotation());
        overrides.put("properties", new TestDescriptorParserDefault());


        // test with weigh attribute (we have 3 candidates now)
        bh.mergeParserOverrides(overrides);
        assertEquals(1, bh.parserRegistry.size());
        DescriptorParser result = bh.parserRegistry.get("properties");

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        // defaults first
        parserRegistry.put("properties", new PropertiesDescriptorParser());


        final Iterator<DescriptorParser> it = ServiceRegistry.lookupProviders(DescriptorParser.class);


        MultiMap overrides = new MultiValueMap();
        while (it.hasNext())
        {
            final DescriptorParser parser = it.next();
            overrides.put(parser.getSupportedFormat(), parser);
        }
        mergeParserOverrides(overrides);
    }

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    private void addFieldsToParsedObject(Document doc, ParsedObject o)
    {
        try
        {
            MultiMap multiKeywords = new MultiHashMap();
            MultiMap multiFields = new MultiHashMap();
            HashMap fieldMap = new HashMap();
            
            Field classNameField = doc.getField(ParsedObject.FIELDNAME_CLASSNAME);
            if(classNameField != null)
            {

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            if(parsedObject.getClassName() != null)
            {
                doc.add(Field.Text(ParsedObject.FIELDNAME_CLASSNAME, parsedObject.getClassName()));
            }


            MultiMap multiKeywords = parsedObject.getMultiKeywords();
            addFieldsToDocument(doc, multiKeywords, KEYWORD);
            
            MultiMap multiFields = parsedObject.getMultiFields();
            addFieldsToDocument(doc, multiFields, TEXT);
            
            Map fields = parsedObject.getFields();
            addFieldsToDocument(doc, fields, TEXT);

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        // blocks of duplicate code might be longer than 'min'. We need to
        // remember the line combinations where we must ignore identical blocks
        // because we have already reported them for an earlier blockIdx.
        // Note: MultiHashMap is deprecated in the latest releases of o.a.j.c.c
        final MultiMap ignorePairs = new MultiHashMap();


        // go through all the blocks in iFile and
        // check if the following mMin lines occur in jFile
        for (int iLine = 0; iLine < iBlockCount; iLine++) {

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    private void addFieldsToParsedObject(Document doc, ParsedObject o)
    {
        try
        {
            MultiMap multiKeywords = new MultiHashMap();
            MultiMap multiFields = new MultiHashMap();
            HashMap fieldMap = new HashMap();
            
            Field classNameField = doc.getField(ParsedObject.FIELDNAME_CLASSNAME);
            if(classNameField != null)
            {

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