io.datarouter.binarydto.fieldcodec.BinaryDtoBaseFieldCodec Maven / Gradle / Ivy
/*
* Copyright © 2009 HotPads ([email protected])
*
* 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 io.datarouter.binarydto.fieldcodec;
import java.util.Arrays;
public abstract class BinaryDtoBaseFieldCodec{
public boolean isFixedLength(){
return false;
}
public boolean isVariableLength(){
return !isFixedLength();
}
public int fixedLength(){
throw new RuntimeException("Fixed length hasn't been specified.");
}
/**
* Override with true if the codec is suitable for comparable encoding.
*/
public abstract boolean supportsComparableCodec();
public abstract byte[] encode(T value);
public abstract T decode(byte[] bytes, int offset, int length);
public T decode(byte[] bytes){
return decode(bytes, 0, bytes.length);
}
/**
* Override this with optimized implementations that avoid encoding.
*/
public int compareAsIfEncoded(T left, T right){
byte[] leftBytes = encode(left);
byte[] rightBytes = encode(right);
return Arrays.compareUnsigned(leftBytes, rightBytes);
}
}