/*
* Copyright (c) 2011. The Apache Software Foundation
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.hadoop.hbase.hbql.mapping;
import org.apache.hadoop.hbase.client.Result;
import org.apache.hadoop.hbase.hbql.client.HBqlException;
import org.apache.hadoop.hbase.hbql.impl.HConnectionImpl;
import org.apache.hadoop.hbase.hbql.impl.HRecordImpl;
import org.apache.hadoop.hbase.hbql.statement.select.SelectElement;
import java.util.List;
public class HRecordResultAccessor extends ResultAccessor {
public HRecordResultAccessor(final MappingContext mappingContext) {
super(mappingContext);
}
public Object newObject(final HConnectionImpl conn,
final MappingContext mappingContext,
final List<SelectElement> selectElementList,
final int maxVersions,
final Result result) throws HBqlException {
// Create object and assign values
final HRecordImpl newrec = new HRecordImpl(mappingContext);
this.assignSelectValues(conn, newrec, selectElementList, maxVersions, result);
return newrec;
}
private void assignSelectValues(final HConnectionImpl conn,
final HRecordImpl record,
final List<SelectElement> selectElementList,
final int maxVersions,
final Result result) throws HBqlException {
// Set key value
this.getMapping().getKeyAttrib().setCurrentValue(record, 0, result.getRow());
// Set the non-key values
for (final SelectElement selectElement : selectElementList)
selectElement.assignSelectValue(conn, record, maxVersions, result);
}
public ColumnAttrib getColumnAttribByName(final String name) throws HBqlException {
return this.getMapping().getAttribByVariableName(name);
}
public ColumnAttrib getColumnAttribByQualifiedName(final String familyName,
final String columnName) throws HBqlException {
return this.getTableMapping().getAttribFromFamilyQualifiedName(familyName + ":" + columnName);
}
public ColumnAttrib getVersionAttrib(final String name) throws HBqlException {
return this.getTableMapping().getVersionAttrib(name);
}
}