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

Example 1 with HashIndexDefinition

use of org.apache.ignite.schema.definition.index.HashIndexDefinition 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 2 with HashIndexDefinition

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

the class SchemaConfigurationConverterTest method testConvertHashIndex.

/**
 * Add/remove HashIndex into configuration and read it back.
 */
@Test
public void testConvertHashIndex() throws Exception {
    HashIndexDefinitionBuilder builder = SchemaBuilders.hashIndex("testHI").withColumns("A", "B", "C").withHints(Collections.singletonMap("param", "value"));
    HashIndexDefinition idx = builder.build();
    getTbl().change(ch -> SchemaConfigurationConverter.addIndex(idx, ch)).get();
    TableDefinition tbl = SchemaConfigurationConverter.convert(getTbl().value());
    HashIndexDefinition idx2 = (HashIndexDefinition) getIdx(idx.name(), tbl.indices());
    assertNotNull(idx2);
    assertEquals("HASH", idx2.type());
    assertEquals(3, idx2.columns().size());
}

Example 3 with HashIndexDefinition

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

the class HashIndexDefinitionBuilderTest method testBuild.

/**
 * Build index and check its parameters.
 */
@Test
public void testBuild() {
    HashIndexDefinitionBuilder builder = SchemaBuilders.hashIndex("testHI").withColumns("A", "B", "C").withHints(Collections.singletonMap("param", "value"));
    HashIndexDefinition idx = builder.build();
    assertEquals("TESTHI", idx.name());
    assertEquals(3, idx.columns().size());
}