| /* |
| * 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.drill.exec.physical.impl.protocol; |
| |
| import java.util.Iterator; |
| |
| import org.apache.drill.common.expression.SchemaPath; |
| import org.apache.drill.exec.record.BatchSchema; |
| import org.apache.drill.exec.record.TypedFieldId; |
| import org.apache.drill.exec.record.VectorContainer; |
| import org.apache.drill.exec.record.VectorWrapper; |
| import org.apache.drill.exec.record.WritableBatch; |
| import org.apache.drill.exec.record.selection.SelectionVector2; |
| import org.apache.drill.exec.record.selection.SelectionVector4; |
| |
| /** |
| * Provides access to the row set (record batch) produced by an |
| * operator. Previously, a record batch <i>was</i> an operator. |
| * In this version, the row set is a service of the operator rather |
| * than being part of the operator. |
| */ |
| |
| public interface BatchAccessor { |
| BatchSchema schema(); |
| int schemaVersion(); |
| int rowCount(); |
| VectorContainer container(); |
| TypedFieldId getValueVectorId(SchemaPath path); |
| VectorWrapper<?> getValueAccessorById(Class<?> clazz, int... ids); |
| WritableBatch writableBatch(); |
| SelectionVector2 selectionVector2(); |
| SelectionVector4 selectionVector4(); |
| Iterator<VectorWrapper<?>> iterator(); |
| void release(); |
| } |