/*
Copyright (c) 2010, 2011, Oracle and/or its affiliates. All rights reserved.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
package com.mysql.clusterj.core.query;
import com.mysql.clusterj.ClusterJException;
import com.mysql.clusterj.core.spi.QueryExecutionContext;
import com.mysql.clusterj.core.store.ScanFilter;
import com.mysql.clusterj.core.store.ScanOperation;
import com.mysql.clusterj.core.store.ScanFilter.Group;
public class NotPredicateImpl extends PredicateImpl {
/** The predicate being negated */
private PredicateImpl predicate;
public NotPredicateImpl(PredicateImpl predicate) {
super(predicate.dobj);
this.predicate = predicate;
}
@Override
public void markParameters() {
// Nothing to do because "not" can't use indexes
}
@Override
public void unmarkParameters() {
// Nothing to do because "not" can't use indexes
}
void markBoundsForCandidateIndices(QueryExecutionContext context,
CandidateIndexImpl[] candidateIndices) {
// Nothing to do because "not" can't use indexes
}
/** Create a filter for the operation. Call the negated predicate to set
* the filter values.
* @param context the query execution context with the parameter values
* @param op the operation
*/
public void filterCmpValue(QueryExecutionContext context,
ScanOperation op) {
try {
ScanFilter filter = op.getScanFilter(context);
filter.begin(Group.GROUP_NAND);
predicate.filterCmpValue(context, op, filter);
filter.end();
} catch (ClusterJException ex) {
throw ex;
} catch (Exception ex) {
throw new ClusterJException(
local.message("ERR_Get_NdbFilter"), ex);
}
}
/** Use an existing filter for the operation. Call the negated predicate to set
* the filter values.
* @param context the query execution context with the parameter values
* @param op the operation
* @param filter the existing filter
*/
public void filterCmpValue(QueryExecutionContext context,
ScanOperation op, ScanFilter filter) {
try {
filter.begin(Group.GROUP_NAND);
predicate.filterCmpValue(context, op, filter);
filter.end();
} catch (ClusterJException ex) {
throw ex;
} catch (Exception ex) {
throw new ClusterJException(
local.message("ERR_Get_NdbFilter"), ex);
}
}
}