/* * 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.cassandra.cql3.functions; import java.nio.ByteBuffer; import java.util.List; import org.apache.cassandra.db.marshal.AbstractType; import org.apache.cassandra.db.marshal.BytesType; import org.apache.cassandra.db.marshal.UTF8Type; public abstract class BytesConversionFcts { // Most of the XAsBlob and blobAsX functions are basically no-op since everything is // bytes internally. They only "trick" the type system. public static Function makeToBlobFunction(AbstractType<?> fromType) { String name = fromType.asCQL3Type() + "asblob"; return new AbstractFunction(name, BytesType.instance, fromType) { public ByteBuffer execute(List<ByteBuffer> parameters) { return parameters.get(0); } }; } public static Function makeFromBlobFunction(AbstractType<?> toType) { String name = "blobas" + toType.asCQL3Type(); return new AbstractFunction(name, toType, BytesType.instance) { public ByteBuffer execute(List<ByteBuffer> parameters) { return parameters.get(0); } }; } public static final Function VarcharAsBlobFct = new AbstractFunction("varcharasblob", BytesType.instance, UTF8Type.instance) { public ByteBuffer execute(List<ByteBuffer> parameters) { return parameters.get(0); } }; public static final Function BlobAsVarcharFact = new AbstractFunction("blobasvarchar", UTF8Type.instance, BytesType.instance) { public ByteBuffer execute(List<ByteBuffer> parameters) { return parameters.get(0); } }; }