Examples with PartialIndexDefinition org.apache.ignite.schema.definition.index.PartialIndexDefinition used on opensource projects

Example 1 with PartialIndexDefinition

use of org.apache.ignite.schema.definition.index.PartialIndexDefinition in project ignite-3 by apache.

the class SchemaConfigurationConverterTest method testPartialIndex.

/**
 * Add/remove PartialIndex into configuration and read it back.
 */
@Test
public void testPartialIndex() throws Exception {
    PartialIndexDefinitionBuilder builder = SchemaBuilders.partialIndex("TEST");
    builder.addIndexColumn("A").done();
    builder.withExpression("WHERE A > 0");
    PartialIndexDefinition idx = builder.build();
    getTbl().change(ch -> SchemaConfigurationConverter.addIndex(idx, ch)).get();
    TableDefinition tbl = SchemaConfigurationConverter.convert(getTbl().value());
    PartialIndexDefinition idx2 = (PartialIndexDefinition) getIdx(idx.name(), tbl.indices());
    assertNotNull(idx2);
    assertEquals("PARTIAL", idx2.type());
    assertEquals(idx.columns().size(), idx2.columns().size());
}

Example 2 with PartialIndexDefinition

use of org.apache.ignite.schema.definition.index.PartialIndexDefinition in project ignite-3 by apache.

the class SchemaConfigurationConverter method convert.

/**
 * Convert TableIndex to TableIndexChange.
 *
 * @param idx    TableIndex.
 * @param idxChg TableIndexChange to fulfill.
 * @return TableIndexChange to get result from.
 */
public static TableIndexChange convert(IndexDefinition idx, TableIndexChange idxChg) {
    idxChg.changeName(idx.name());
    switch(idx.type().toUpperCase()) {
        case HASH_INDEX_TYPE:
            HashIndexDefinition hashIdx = (HashIndexDefinition) idx;
            String[] colNames = hashIdx.columns().stream().map(IndexColumnDefinition::name).toArray(String[]::new);
            return idxChg.convert(HashIndexChange.class).changeColNames(colNames);
        case PARTIAL_INDEX_TYPE:
            PartialIndexDefinition partIdx = (PartialIndexDefinition) idx;
            return idxChg.changeUniq(partIdx.unique()).convert(PartialIndexChange.class).changeExpr(partIdx.expr()).changeColumns(colsChg -> {
                for (SortedIndexColumnDefinition col : partIdx.columns()) {
                    colsChg.create(col.name(), colInit -> convert(col, colInit));
                }
            });
        case SORTED_INDEX_TYPE:
            SortedIndexDefinition sortIdx = (SortedIndexDefinition) idx;
            return idxChg.changeUniq(sortIdx.unique()).convert(SortedIndexChange.class).changeColumns(colsInit -> {
                for (SortedIndexColumnDefinition col : sortIdx.columns()) {
                    colsInit.create(col.name(), colInit -> convert(col, colInit));
                }
            });
        default:
            throw new IllegalArgumentException("Unknown index type " + idx.type());
    }
}

Example 3 with PartialIndexDefinition

use of org.apache.ignite.schema.definition.index.PartialIndexDefinition in project ignite-3 by apache.

the class PartialIndexDefinitionBuilderTest method testPartialIndexCreate.

/**
 * Test partial index parameters.
 */
@Test
public void testPartialIndexCreate() {
    PartialIndexDefinitionBuilder builder = SchemaBuilders.partialIndex("TEST");
    builder.addIndexColumn("A").done();
    builder.withExpression("WHERE A > 0");
    PartialIndexDefinition idx = builder.build();
    assertEquals(1, idx.columns().size());
    assertEquals("WHERE A > 0", idx.expr());
}