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* distributed with this work for additional information
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* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
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*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
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package org.apache.cayenne.dba.sqlserver;
import org.apache.cayenne.access.translator.select.DefaultSelectTranslator;
import org.apache.cayenne.dba.DbAdapter;
import org.apache.cayenne.map.EntityResolver;
import org.apache.cayenne.query.Query;
public class SQLServerSelectTranslator extends DefaultSelectTranslator {
/**
* @since 4.0
*/
public SQLServerSelectTranslator(Query query, DbAdapter adapter, EntityResolver entityResolver) {
super(query, adapter, entityResolver);
}
@Override
protected void appendLimitAndOffsetClauses(StringBuilder buffer) {
int limit = queryMetadata.getFetchLimit();
int offset = queryMetadata.getFetchOffset();
if (limit > 0) {
String sql = buffer.toString();
// If contains distinct insert top limit after
if (sql.startsWith("SELECT DISTINCT ")) {
buffer.replace(0, 15, "SELECT DISTINCT TOP " + (offset + limit));
} else {
buffer.replace(0, 6, "SELECT TOP " + (offset + limit));
}
}
}
}