Examples of org.geotools.data.QueryCapabilities.supportsSorting()

Class org.geotools.data.QueryCapabilities

Examples of org.geotools.data.QueryCapabilities.supportsSorting()

org.geotools.data.QueryCapabilities.supportsSorting()
Returns whether a list of properties can be used as SortBy keys.
May include current feature type properties as well as "@id" for sorting on the Feature ID. Note, however, that ability to sort by the fature id does not necessarily implies the same ordering than SortBy.NATURAL_ORDER, though its probable they match for datastores where the feature id is built up from a primary key.

Returns true if passed a null or empty array, otherwise the actual attributes are checked. When the array is not null and not empty, by default returns false. FeatureSource implementations should override as needed.
@return whether the FeatureType this query capabilities refers to can be natively sorted bythe provided list of attribtue/order pairs

    public void testQueryCapabilitiesSort() throws Exception {
        FilterFactory ff = dataStore.getFilterFactory();
        QueryCapabilities caps = featureSource.getQueryCapabilities();
        
        // check we advertise support for sorting on basic attributes 
        assertTrue(caps.supportsSorting(new SortBy[] {ff.sort(aname("intProperty"), SortOrder.ASCENDING)}));
        assertTrue(caps.supportsSorting(new SortBy[] {ff.sort(aname("stringProperty"), SortOrder.DESCENDING)}));
        assertTrue(caps.supportsSorting(new SortBy[] {ff.sort(aname("doubleProperty"), SortOrder.ASCENDING)}));


        // but we cannot sort geometries
        assertFalse(caps.supportsSorting(new SortBy[] {ff.sort(aname("geometry"), SortOrder.ASCENDING)}));

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        FilterFactory ff = dataStore.getFilterFactory();
        QueryCapabilities caps = featureSource.getQueryCapabilities();
        
        // check we advertise support for sorting on basic attributes 
        assertTrue(caps.supportsSorting(new SortBy[] {ff.sort(aname("intProperty"), SortOrder.ASCENDING)}));
        assertTrue(caps.supportsSorting(new SortBy[] {ff.sort(aname("stringProperty"), SortOrder.DESCENDING)}));
        assertTrue(caps.supportsSorting(new SortBy[] {ff.sort(aname("doubleProperty"), SortOrder.ASCENDING)}));


        // but we cannot sort geometries
        assertFalse(caps.supportsSorting(new SortBy[] {ff.sort(aname("geometry"), SortOrder.ASCENDING)}));
    }

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        QueryCapabilities caps = featureSource.getQueryCapabilities();
        
        // check we advertise support for sorting on basic attributes 
        assertTrue(caps.supportsSorting(new SortBy[] {ff.sort(aname("intProperty"), SortOrder.ASCENDING)}));
        assertTrue(caps.supportsSorting(new SortBy[] {ff.sort(aname("stringProperty"), SortOrder.DESCENDING)}));
        assertTrue(caps.supportsSorting(new SortBy[] {ff.sort(aname("doubleProperty"), SortOrder.ASCENDING)}));


        // but we cannot sort geometries
        assertFalse(caps.supportsSorting(new SortBy[] {ff.sort(aname("geometry"), SortOrder.ASCENDING)}));
    }

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        assertTrue(caps.supportsSorting(new SortBy[] {ff.sort(aname("intProperty"), SortOrder.ASCENDING)}));
        assertTrue(caps.supportsSorting(new SortBy[] {ff.sort(aname("stringProperty"), SortOrder.DESCENDING)}));
        assertTrue(caps.supportsSorting(new SortBy[] {ff.sort(aname("doubleProperty"), SortOrder.ASCENDING)}));


        // but we cannot sort geometries
        assertFalse(caps.supportsSorting(new SortBy[] {ff.sort(aname("geometry"), SortOrder.ASCENDING)}));
    }
    
    public void testQueryCapabilitiesReliableFid() throws Exception {
        QueryCapabilities caps = featureSource.getQueryCapabilities();
        // we have a primary key, right?

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