nz.co.gregs.dbvolution.databases.definitions.Oracle12DBDefinition Maven / Gradle / Ivy
/*
* Copyright 2013 Gregory Graham.
*
* 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 nz.co.gregs.dbvolution.databases.definitions;
import nz.co.gregs.dbvolution.databases.Oracle12DB;
import nz.co.gregs.dbvolution.internal.query.QueryOptions;
import nz.co.gregs.dbvolution.internal.query.QueryState;
/**
* Defines the features of the Oracle 12 database that differ from the standard
* database.
*
*
* This DBDefinition is automatically included in {@link Oracle12DB} instances,
* and you should not need to use it directly.
*
*
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*
* @author Gregory Graham
*/
public class Oracle12DBDefinition extends OracleSpatialDBDefinition {
@Override
public String getLimitRowsSubClauseAfterWhereClause(QueryState state, QueryOptions options) {
int rowLimit = options.getRowLimit();
Integer pageNumber = options.getPageIndex();
if (rowLimit < 1) {
return "";
} else {
long offset = pageNumber * rowLimit;
return " OFFSET " + offset + " ROWS FETCH NEXT " + rowLimit + " ROWS ONLY ";
}
}
}