/**
* 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.record;
import org.apache.drill.common.expression.SchemaPath;
import org.apache.drill.exec.memory.BufferAllocator;
import org.apache.drill.exec.vector.ValueVector;
public interface VectorWrapper<T extends ValueVector> {
public Class<T> getVectorClass();
public MaterializedField getField();
public T getValueVector();
public T[] getValueVectors();
public boolean isHyper();
public void clear();
public VectorWrapper<T> cloneAndTransfer(BufferAllocator allocator);
public VectorWrapper<?> getChildWrapper(int[] ids);
public void transfer(VectorWrapper<?> destination);
/**
* Traverse the object graph and determine whether the provided SchemaPath matches data within the Wrapper. If so, return a TypedFieldId associated with this path.
* @return TypedFieldId
*/
public TypedFieldId getFieldIdIfMatches(int id, SchemaPath expectedPath);
}