2 Copyright (c) 2010, 2011, Oracle and/or its affiliates. All rights reserved.
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; version 2 of the License.
8 This program is distributed in the hope that it will be useful,
9 but WITHOUT ANY WARRANTY; without even the implied warranty of
10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 GNU General Public License for more details.
13 You should have received a copy of the GNU General Public License
14 along with this program; if not, write to the Free Software
15 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18 package com.mysql.clusterj.core.query;
20 import com.mysql.clusterj.core.spi.QueryExecutionContext;
21 import com.mysql.clusterj.core.store.IndexScanOperation;
22 import com.mysql.clusterj.core.store.Operation;
23 import com.mysql.clusterj.core.store.ScanFilter;
24 import com.mysql.clusterj.core.store.ScanOperation;
26 public class EqualPredicateImpl extends ComparativePredicateImpl {
28 public EqualPredicateImpl(QueryDomainTypeImpl<?> dobj,
29 PropertyImpl property, ParameterImpl param) {
30 super(dobj, property, param);
34 public void markBoundsForCandidateIndices(QueryExecutionContext context, CandidateIndexImpl[] candidateIndices) {
35 if (param.getParameterValue(context) == null) {
36 // null parameters cannot be used with indexes
39 property.markEqualBound(candidateIndices, this);
43 public void operationSetBounds(QueryExecutionContext context, IndexScanOperation op, boolean lastColumn) {
44 // can always set boundEQ
45 property.operationSetBounds(param.getParameterValue(context), IndexScanOperation.BoundType.BoundEQ, op);
49 public void operationSetLowerBound(QueryExecutionContext context, IndexScanOperation op, boolean lastColumn) {
50 // only set lower bound
51 property.operationSetBounds(param.getParameterValue(context), IndexScanOperation.BoundType.BoundLE, op);
55 public void operationSetUpperBound(QueryExecutionContext context, IndexScanOperation op, boolean lastColumn) {
56 // only set upper bound
57 property.operationSetBounds(param.getParameterValue(context), IndexScanOperation.BoundType.BoundGE, op);
61 public void operationEqual(QueryExecutionContext context,
63 property.operationEqual(param.getParameterValue(context), op);
67 public void operationEqualFor(QueryExecutionContext context,
68 Operation op, String indexName) {
69 property.operationEqualFor(param.getParameterValue(context), op, indexName);
72 /** Set the condition into the filter.
73 * @param context the query execution context with the parameter values
74 * @param op the operation
75 * @param filter the filter
78 public void filterCmpValue(QueryExecutionContext context, ScanOperation op, ScanFilter filter) {
79 property.filterCmpValue(param.getParameterValue(context),
80 ScanFilter.BinaryCondition.COND_EQ, filter);