Examples with Scanner org.apache.phoenix.hbase.index.scanner.Scanner used on opensource projects

Example 11 with Scanner

use of org.apache.phoenix.hbase.index.scanner.Scanner in project phoenix by apache.

the class LocalTableStateTest method testOnlyLoadsRequestedColumns.

@SuppressWarnings("unchecked")
@Test
public void testOnlyLoadsRequestedColumns() throws Exception {
    // setup mocks
    RegionCoprocessorEnvironment env = Mockito.mock(RegionCoprocessorEnvironment.class);
    Region region = Mockito.mock(Region.class);
    Mockito.when(env.getRegion()).thenReturn(region);
    final KeyValue storedKv = new KeyValue(row, fam, qual, ts, Type.Put, Bytes.toBytes("stored-value"));
    storedKv.setSequenceId(2);
    Put pendingUpdate = new Put(row);
    pendingUpdate.addColumn(fam, qual, ts, val);
    HashMap<ImmutableBytesPtr, List<Cell>> rowKeyPtrToCells = new HashMap<ImmutableBytesPtr, List<Cell>>();
    rowKeyPtrToCells.put(new ImmutableBytesPtr(row), Collections.singletonList((Cell) storedKv));
    CachedLocalTable cachedLocalTable = CachedLocalTable.build(rowKeyPtrToCells);
    LocalTableState table = new LocalTableState(cachedLocalTable, pendingUpdate);
    // do the lookup for the given column
    ColumnReference col = new ColumnReference(fam, qual);
    table.setCurrentTimestamp(ts);
    // check that the value is there
    Pair<CoveredDeleteScanner, IndexUpdate> p = table.getIndexedColumnsTableState(Arrays.asList(col), false, false, indexMetaData);
    Scanner s = p.getFirst();
    // make sure it read the table the one time
    assertEquals("Didn't get the stored keyvalue!", storedKv, s.next());
    // on the second lookup it shouldn't access the underlying table again - the cached columns
    // should know they are done
    p = table.getIndexedColumnsTableState(Arrays.asList(col), false, false, indexMetaData);
    s = p.getFirst();
    assertEquals("Lost already loaded update!", storedKv, s.next());
}