org.apache.avro.reflect.CustomEncoding Maven / Gradle / Ivy
/**
* 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.avro.reflect;
import java.io.IOException;
import org.apache.avro.Schema;
import org.apache.avro.io.Decoder;
import org.apache.avro.io.Encoder;
/**
* Expert: a custom encoder and decoder that writes
* an object directly to avro.
* No validation is performed to check that the encoding conforms to the schema.
* Invalid implementations may result in an unreadable file.
* The use of {@link org.apache.avro.io.ValidatingEncoder} is recommended.
*
* @param The class of objects that can be serialized with this encoder / decoder.
*/
public abstract class CustomEncoding {
protected Schema schema;
protected abstract void write(Object datum, Encoder out) throws IOException;
protected abstract T read(Object reuse, Decoder in) throws IOException;
T read(Decoder in) throws IOException {
return this.read(null, in);
}
protected Schema getSchema() {
return schema;
}
}