parquet.io.api.Converter Maven / Gradle / Ivy
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/*
* 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 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() + "\"");
}
}