1 /**

     2  * Copyright 2002-2004 The Apache Software Foundation

     3  *

     4  * Licensed under the Apache License, Version 2.0 (the "License");

     5  * you may not use this file except in compliance with the License.

     6  * You may obtain a copy of the License at

     7  *

     8  *     http://www.apache.org/licenses/LICENSE-2.0

     9  *

    10  * Unless required by applicable law or agreed to in writing, software

    11  * distributed under the License is distributed on an "AS IS" BASIS,

    12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

    13  * See the License for the specific language governing permissions and

    14  * limitations under the License.

    15  */

    16 

    17 #ifndef _lucene_search_highlight_simplefragmenter_

    18 #define _lucene_search_highlight_simplefragmenter_

    19 

    20 #if defined(_LUCENE_PRAGMA_ONCE)

    21 # pragma once

    22 #endif

    23 

    24 #include "CLucene/analysis/AnalysisHeader.h"

    25 #include "CLucene/highlighter/Fragmenter.h"

    26 

    27 CL_NS_DEF2(search,highlight)

    28 

    29 /**

    30  * {@link Fragmenter} implementation which breaks text up into same-size 

    31  * fragments with no concerns over spotting sentence boundaries.

    32  */

    33 

    34 class SimpleFragmenter:public Fragmenter

    35 {

    36 private:

    37 	LUCENE_STATIC_CONSTANT(int32_t, DEFAULT_FRAGMENT_SIZE =100 );

    38 	int32_t _currentNumFrags;

    39 	int32_t _fragmentSize;

    40 

    41 public:

    42 	/**

    43 	 * 

    44 	 * @param fragmentSize size in bytes of each fragment

    45 	 */

    46 	SimpleFragmenter(int32_t fragmentSize = DEFAULT_FRAGMENT_SIZE);

    47 

    48 	~SimpleFragmenter();

    49 

    50 	/* (non-Javadoc)

    51 	 * @see org.apache.lucene.search.highlight.TextFragmenter#start(const TCHAR*)

    52 	 */

    53 	void start(const TCHAR* originalText);

    54 

    55 	/* (non-Javadoc)

    56 	 * @see org.apache.lucene.search.highlight.TextFragmenter#isNewFragment(org.apache.lucene.analysis.Token)

    57 	 */

    58 	bool isNewFragment(const CL_NS(analysis)::Token * token);

    59 

    60 	/**

    61 	 * @return size in bytes of each fragment

    62 	 */

    63 	int32_t getFragmentSize() const;

    64 

    65 	/**

    66 	 * @param size size in bytes of each fragment

    67 	 */

    68 	void setFragmentSize(int32_t size);

    69 

    70 };

    71 

    72 CL_NS_END2

    73 

    74 #endif