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/*
* Copyright 2008-2012 Amazon Technologies, Inc. or its affiliates.
* Amazon, Amazon.com and Carbonado are trademarks or registered trademarks
* of Amazon Technologies, Inc. or its affiliates. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.amazon.carbonado.repo.jdbc;
/**
*
*
* @author Brian S O'Neill
* @since 1.2
*/
class H2SupportStrategy extends JDBCSupportStrategy {
private static final String DEFAULT_SEQUENCE_SELECT_STATEMENT = "SELECT NEXT VALUE FOR %s";
private static final String TRUNCATE_STATEMENT = "TRUNCATE TABLE %s";
protected H2SupportStrategy(JDBCRepository repo) {
super(repo);
setSequenceSelectStatement(DEFAULT_SEQUENCE_SELECT_STATEMENT);
setTruncateTableStatement(TRUNCATE_STATEMENT);
}
@Override
JDBCExceptionTransformer createExceptionTransformer() {
return new H2ExceptionTransformer();
}
@Override
SliceOption getSliceOption() {
return SliceOption.LIMIT_AND_OFFSET;
}
@Override
String buildSelectWithSlice(String select, boolean from, boolean to) {
if (to) {
if (from) {
return select.concat(" LIMIT ? OFFSET ?");
} else {
return select.concat(" LIMIT ?");
}
} else if (from) {
return select.concat(" LIMIT 2147483647 OFFSET ?");
} else {
return select;
}
}
}
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