Examples of org.apache.commons.collections.comparators.ReverseComparator

Package org.apache.commons.collections.comparators

Examples of org.apache.commons.collections.comparators.ReverseComparator

org.apache.commons.collections.comparators.ReverseComparator
Reverses the order of another comparator by reversing the arguments to its {@link #compare(Object,Object) compare} method. @since Commons Collections 2.0 @version $Revision: 1.20 $ $Date: 2004/05/16 11:49:24 $ @author Henri Yandell @author Michael A. Smith @see java.util.Collections#reverseOrder()

    }


    protected Comparator<DbEntity> getDbEntityComparator(boolean dependantFirst) {
        Comparator<DbEntity> c = dbEntityComparator;
        if (dependantFirst) {
            c = new ReverseComparator(c);
        }
        return c;
    }

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    }


    protected Comparator<ObjEntity> getObjEntityComparator(boolean dependantFirst) {
        Comparator<ObjEntity> c = objEntityComparator;
        if (dependantFirst) {
            c = new ReverseComparator(c);
        }
        return c;
    }

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    }


    @Override
    public Comparator<IColumn> getColumnComparator(AbstractType comparator)
    {
        return reversed ? new ReverseComparator(super.getColumnComparator(comparator)) : super.getColumnComparator(comparator);
    }

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            fail("NoSuchElementException should be thrown if remove is called after all elements are removed");
        } catch (BufferUnderflowException ex) {}
    }


    public void testBasicComparatorOps() {
        PriorityBuffer heap = new PriorityBuffer(new ReverseComparator(new ComparableComparator()));


        assertTrue("heap should be empty after create", heap.isEmpty());


        try {
            heap.get();

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            // expected
        }
    }


    public void testBasicComparatorOps() {
        BinaryHeap heap = new BinaryHeap(new ReverseComparator(new ComparableComparator()));


        assertTrue("heap should be empty after create", heap.isEmpty());


        try {
            heap.peek();

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     */
    public static Comparator reversedComparator(Comparator comparator) {
        if (comparator == null) {
            comparator = NATURAL_COMPARATOR;
        }
        return new ReverseComparator(comparator);
    }

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        return scFiltered;
    }


    public Comparator<IColumn> getColumnComparator(AbstractType comparator)
    {
        return reversed ? new ReverseComparator(QueryFilter.getColumnComparator(comparator)) : QueryFilter.getColumnComparator(comparator);
    }

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    }


    protected Comparator getDbEntityComparator(boolean dependantFirst) {
        Comparator c = dbEntityComparator;
        if (dependantFirst) {
            c = new ReverseComparator(c);
        }
        return c;
    }

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    }


    protected Comparator<ObjEntity> getObjEntityComparator(boolean dependantFirst) {
        Comparator<ObjEntity> c = objEntityComparator;
        if (dependantFirst) {
            c = new ReverseComparator(c);
        }
        return c;
    }

View Full Code Here

    }


    protected Comparator getDbEntityComparator(boolean dependantFirst) {
        Comparator c = dbEntityComparator;
        if (dependantFirst) {
            c = new ReverseComparator(c);
        }
        return c;
    }

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