activemq-cpp-3.3.0

src/main/decaf/nio/DoubleBuffer.h

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00001 /*
00002  * Licensed to the Apache Software Foundation (ASF) under one or more
00003  * contributor license agreements.  See the NOTICE file distributed with
00004  * this work for additional information regarding copyright ownership.
00005  * The ASF licenses this file to You under the Apache License, Version 2.0
00006  * (the "License"); you may not use this file except in compliance with
00007  * the License.  You may obtain a copy of the License at
00008  *
00009  *     http://www.apache.org/licenses/LICENSE-2.0
00010  *
00011  * Unless required by applicable law or agreed to in writing, software
00012  * distributed under the License is distributed on an "AS IS" BASIS,
00013  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00014  * See the License for the specific language governing permissions and
00015  * limitations under the License.
00016  */
00017 
00018 #ifndef _DECAF_NIO_DOUBLEBUFFER_H_
00019 #define _DECAF_NIO_DOUBLEBUFFER_H_
00020 
00021 #include <decaf/nio/Buffer.h>
00022 #include <decaf/lang/Comparable.h>
00023 #include <decaf/lang/exceptions/NullPointerException.h>
00024 #include <decaf/lang/exceptions/IndexOutOfBoundsException.h>
00025 #include <decaf/nio/BufferUnderflowException.h>
00026 #include <decaf/nio/BufferOverflowException.h>
00027 #include <decaf/nio/ReadOnlyBufferException.h>
00028 
00029 namespace decaf{
00030 namespace nio{
00031 
00052     class DECAF_API DoubleBuffer : public Buffer,
00053                                    public lang::Comparable<DoubleBuffer> {
00054     protected:
00055 
00066         DoubleBuffer( int capacity );
00067 
00068     public:
00069 
00070         virtual ~DoubleBuffer() {}
00071 
00075         virtual std::string toString() const;
00076 
00091         virtual double* array() = 0;
00092 
00105         virtual int arrayOffset() = 0;
00106 
00124         virtual DoubleBuffer* asReadOnlyBuffer() const = 0;
00125 
00144         virtual DoubleBuffer& compact() = 0;
00145 
00159         virtual DoubleBuffer* duplicate() = 0;
00160 
00169         virtual double get() = 0;
00170 
00182         virtual double get( int index ) const = 0;
00183 
00198         DoubleBuffer& get( std::vector<double> buffer );
00199 
00229         DoubleBuffer& get( double* buffer, int size, int offset, int length );
00230 
00240         virtual bool hasArray() const = 0;
00241 
00262         DoubleBuffer& put( DoubleBuffer& src );
00263 
00291         DoubleBuffer& put( const double* buffer, int size, int offset, int length );
00292 
00305         DoubleBuffer& put( std::vector<double>& buffer );
00306 
00320         virtual DoubleBuffer& put( double value ) = 0;
00321 
00336         virtual DoubleBuffer& put( int index, double value ) = 0;
00337 
00351         virtual DoubleBuffer* slice() const = 0;
00352 
00353     public:  // Comparable
00354 
00358         virtual int compareTo( const DoubleBuffer& value ) const;
00359 
00363         virtual bool equals( const DoubleBuffer& value ) const;
00364 
00368         virtual bool operator==( const DoubleBuffer& value ) const;
00369 
00373         virtual bool operator<( const DoubleBuffer& value ) const;
00374 
00375     public:   // Statics
00376 
00391         static DoubleBuffer* allocate( int capacity );
00392 
00417         static DoubleBuffer* wrap( double* array, int size, int offset, int length );
00418 
00434         static DoubleBuffer* wrap( std::vector<double>& buffer );
00435 
00436     };
00437 
00438 }}
00439 
00440 #endif /*_DECAF_NIO_DOUBLEBUFFER_H_*/