/*
* Copyright DataStax, 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 com.datastax.oss.driver.internal.core.type.codec;
import com.datastax.oss.driver.api.core.data.ByteUtils;
import com.datastax.oss.driver.api.core.type.codec.MappingCodec;
import com.datastax.oss.driver.api.core.type.codec.TypeCodecs;
import com.datastax.oss.driver.api.core.type.reflect.GenericType;
import com.datastax.oss.driver.internal.core.type.codec.extras.array.ByteListToArrayCodec;
import edu.umd.cs.findbugs.annotations.NonNull;
import edu.umd.cs.findbugs.annotations.Nullable;
import java.nio.ByteBuffer;
import net.jcip.annotations.Immutable;
A codec that maps the CQL type blob
to the Java type byte[]
. If you are looking for a codec mapping the CQL type blob
to the Java type ByteBuffer
, you should use BlobCodec
instead.
If you are looking for a codec mapping the CQL type list<tinyint
to the Java type byte[]
, you should use ByteListToArrayCodec
instead.
/**
* A codec that maps the CQL type {@code blob} to the Java type {@code byte[]}.
*
* <p>If you are looking for a codec mapping the CQL type {@code blob} to the Java type {@link
* ByteBuffer}, you should use {@link BlobCodec} instead.
*
* <p>If you are looking for a codec mapping the CQL type {@code list<tinyint} to the Java type
* {@code byte[]}, you should use {@link ByteListToArrayCodec} instead.
*/
@Immutable
public class SimpleBlobCodec extends MappingCodec<ByteBuffer, byte[]> {
public SimpleBlobCodec() {
super(TypeCodecs.BLOB, GenericType.of(byte[].class));
}
@Override
public boolean accepts(@NonNull Object value) {
return value instanceof byte[];
}
@Override
public boolean accepts(@NonNull Class<?> javaClass) {
return byte[].class.equals(javaClass);
}
@Nullable
@Override
protected byte[] innerToOuter(@Nullable ByteBuffer value) {
return value == null ? null : ByteUtils.getArray(value);
}
@Nullable
@Override
protected ByteBuffer outerToInner(@Nullable byte[] value) {
return value == null ? null : ByteBuffer.wrap(value);
}
}