Examples of org.apache.commons.collections15.MultiMap.entrySet()

Package org.apache.commons.collections15

Class org.apache.commons.collections15.MultiMap

Examples of org.apache.commons.collections15.MultiMap.entrySet()

org.apache.commons.collections15.MultiMap.entrySet()
Returns a set view of the mappings contained in this map. Each element in the returned set is a {@link Map.Entry}. The set is backed by the map, so changes to the map are reflected in the set, and vice-versa. If the map is modified while an iteration over the set is in progress (except through the iterator's own remove operation, or through the setValue operation on a map entry returned by the iterator) the results of the iteration are undefined. The set supports element removal, which removes the corresponding mapping from the map, via the Iterator.remove, Set.remove, removeAll, retainAll and clear operations. It does not support the add or addAll operations. @return a set view of the mappings contained in this map.

        IterableMap map = new ReferenceIdentityMap(ReferenceIdentityMap.HARD, ReferenceIdentityMap.HARD);


        map.put(I1A, I2A);
        map.put(I1B, I2A);


        Map.Entry entry1 = (Map.Entry) map.entrySet().iterator().next();
        Iterator it = map.entrySet().iterator();
        Map.Entry entry2 = (Map.Entry) it.next();
        Map.Entry entry3 = (Map.Entry) it.next();


        assertEquals(true, entry1.equals(entry2));

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        map.put(I1A, I2A);
        map.put(I1B, I2A);


        Map.Entry entry1 = (Map.Entry) map.entrySet().iterator().next();
        Iterator it = map.entrySet().iterator();
        Map.Entry entry2 = (Map.Entry) it.next();
        Map.Entry entry3 = (Map.Entry) it.next();


        assertEquals(true, entry1.equals(entry2));
        assertEquals(true, entry2.equals(entry1));

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        IterableMap map = new IdentityMap();


        map.put(I1A, I2A);
        map.put(I1B, I2A);


        Map.Entry entry1 = (Map.Entry) map.entrySet().iterator().next();
        Iterator it = map.entrySet().iterator();
        Map.Entry entry2 = (Map.Entry) it.next();
        Map.Entry entry3 = (Map.Entry) it.next();


        assertEquals(true, entry1.equals(entry2));

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        map.put(I1A, I2A);
        map.put(I1B, I2A);


        Map.Entry entry1 = (Map.Entry) map.entrySet().iterator().next();
        Iterator it = map.entrySet().iterator();
        Map.Entry entry2 = (Map.Entry) it.next();
        Map.Entry entry3 = (Map.Entry) it.next();


        assertEquals(true, entry1.equals(entry2));
        assertEquals(true, entry2.equals(entry1));

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    private Map.Entry[] makeEntryArray(Object[] keys, Object[] values) {
        Map.Entry[] result = new Map.Entry[keys.length];
        for (int i = 0; i < keys.length; i++) {
            MultiMap map = makeConfirmedMap();
            map.put(keys[i], values[i]);
            result[i] = (Map.Entry) map.entrySet().iterator().next();
        }
        return result;
    }

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