Examples of com.vaadin.data.util.filter.Compare

com.vaadin.data.util.filter.Compare
Simple container filter comparing an item property value against a given constant value. Use the nested classes {@link Equal}, {@link Greater}, {@link Less}, {@link GreaterOrEqual} and {@link LessOrEqual} instead of thisclass directly. This filter also directly supports in-memory filtering. The reference and actual values must implement {@link Comparable} and theclass of the actual property value must be assignable from the class of the reference value. @since 6.6


public class CompareTest {


    @Test
    public void testEquals() {
        Compare c1 = new Compare.Equal("prop1", "val1");
        Compare c2 = new Compare.Equal("prop1", "val1");
        Assert.assertTrue(c1.equals(c2));
    }

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        Assert.assertTrue(c1.equals(c2));
    }


    @Test
    public void testDifferentTypeEquals() {
        Compare c1 = new Compare.Equal("prop1", "val1");
        Compare c2 = new Compare.Greater("prop1", "val1");
        Assert.assertFalse(c1.equals(c2));
    }

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        Assert.assertFalse(c1.equals(c2));
    }


    @Test
    public void testEqualsNull() {
        Compare c1 = new Compare.Equal("prop1", "val1");
        Assert.assertFalse(c1.equals(null));
    }

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        return filter instanceof Compare;
    }


    @Override
    public String getWhereStringForFilter(Filter filter, StatementHelper sh) {
        Compare compare = (Compare) filter;
        sh.addParameterValue(compare.getValue());
        String prop = QueryBuilder.quote(compare.getPropertyId());
        switch (compare.getOperation()) {
        case EQUAL:
            return prop + " = ?";
        case GREATER:
            return prop + " > ?";
        case GREATER_OR_EQUAL:

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    public boolean translatesFilter(Filter filter) {
        return filter instanceof Compare;
    }


    public String getWhereStringForFilter(Filter filter, StatementHelper sh) {
        Compare compare = (Compare) filter;
        sh.addParameterValue(compare.getValue());
        String prop = QueryBuilder.quote(compare.getPropertyId());
        switch (compare.getOperation()) {
        case EQUAL:
            return prop + " = ?";
        case GREATER:
            return prop + " > ?";
        case GREATER_OR_EQUAL:

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        return filter instanceof Compare;
    }


    @Override
    public String getWhereStringForFilter(Filter filter, StatementHelper sh) {
        Compare compare = (Compare) filter;
        sh.addParameterValue(compare.getValue());
        String prop = QueryBuilder.quote(compare.getPropertyId());
        switch (compare.getOperation()) {
        case EQUAL:
            return prop + " = ?";
        case GREATER:
            return prop + " > ?";
        case GREATER_OR_EQUAL:

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