parquet.io.api.Converter Maven / Gradle / Ivy
/**
* Copyright 2012 Twitter, Inc.
*
* 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 parquet.io.api;
/**
* Represent a tree of converters
* that materializes tuples
*
* @author Julien Le Dem
*
*/
public abstract class Converter {
abstract public boolean isPrimitive();
public PrimitiveConverter asPrimitiveConverter() {
throw new ClassCastException("Expected instance of primitive converter but got \"" + getClass().getName() + "\"");
}
public GroupConverter asGroupConverter() {
throw new ClassCastException("Expected instance of group converter but got \"" + getClass().getName() + "\"");
}
}