File: PostLzssEncoder.java

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//start of PostLzssEncoder.java
//TEXT_STYLE:CODE=Shift_JIS(Japanese):RET_CODE=CRLF

/**
 * PostLzssEncoder.java
 * 
 * Copyright (C) 2001-2002  Michel Ishizuka  All rights reserved.
 * 
 * ȉ̏ɓӂȂ΃\[XƃoCi`̍ĔzzƎgp
 * ύX̗Lɂ炸‚B
 * 
 * PD\[XR[h̍ĔzzɂĒ쌠\ ̏̃Xg
 *     щL̐ێȂĂ͂ȂȂB
 * 
 * QDoCi`̍ĔzzɂĒ쌠\ ̏̃Xg
 *     щL̐gp ̑̔zz
 *     ܂ގɋLqȂ΂ȂȂB
 * 
 * ̃\tgEFA͐Β˔ڂɂĖۏ؂Œ񋟂A̖
 * IBłƂۏ؁AilLƂۏ؂ɂƂǂ܂炸A
 * Ȃ閾IшÎIȕۏ؂ȂB
 * Β˔ڂ ̃\tgEFA̎gpɂ钼ړIAԐړIA
 * IAȁAT^IȁA邢͕KRIȑQ(gpɂf[^
 * AƖ̒f〈܂Ăv̈⎸A֐i
 * T[rX̓l邪AĂꂾɌ肳Ȃ
 * Q)ɑ΂āAȂ鎖Ԃ̌ƂȂƂĂA_̐
 * C△ߎӔC܂ ȂӔC낤ƂAƂꂪs
 * ŝׂ߂łƂĂA܂͂̂悤ȑQ̉”\
 * ĂƂĂ؂̐ӔC𕉂Ȃ̂ƂB
 */

package jp.gr.java_conf.dangan.util.lha;

//import classes and interfaces

//import exceptions
import java.io.IOException;

/**
 * LZSSkR[h C^[tFCXB
 * 
 * <pre>
 * -- revision history --
 * $Log: PostLzssEncoder.java,v $
 * Revision 1.0  2002/07/25 00:00:00  dangan
 * add to version control
 * [maintenance]
 *     \[X
 *     ^up~
 *     CZX̏C
 *
 * </pre>
 * 
 * @author  $Author: dangan $
 * @version $Revision: 1.0 $
 */
public interface PostLzssEncoder{


    //------------------------------------------------------------------
    //  original method ( on the model of java.io.OutputStream )
    //------------------------------------------------------------------
    //  other
    //------------------------------------------------------------------
    //  public abstract void flush()
    //  public abstract void close()
    //------------------------------------------------------------------
    /**
     *  PostLzssEncoder Ƀobt@OĂ
     * o͉”\ȃf[^o͐ OutputStream ɏo͂A
     * o͐ OutputStream  flush() B<br>
     * java.io.OutputStream  \bh flush() ƎĂ邪A
     * flush() Ȃꍇ flush() ꍇ̏o͂ɂ‚Ă
     * ł邱Ƃۏ؂ȂėǂB<br>
     * ‚܂OutputStream  flush() ł͓f[^o͂鎖
     * ҂悤Ȉȉ̓‚̃R[h́A
     * PostLzssEncoder ɂĂ ʂ̃f[^o͂ĂǂB
     * <pre>
     * (1)
     *   PostLzssEncoder out = new ImplementedPostLzssEncoder();
     *   out.writeCode( 0 );
     *   out.writeCode( 0 );
     *   out.writeCode( 0 );
     *   out.close();
     * 
     * (2)
     *   PostLzssEncoder out = new ImplementedPostLzssEncoder();
     *   out.writeCode( 0 );
     *   out.flush();
     *   out.writeCode( 0 );
     *   out.flush();
     *   out.writeCode( 0 );
     *   out.close();
     * </pre>
     * 
     * @exception IOException o̓G[ꍇ
     */
    public abstract void flush() throws IOException;

    /**
     * ̏o̓Xg[ƁAڑꂽo̓Xg[‚A
     * gpĂ\[XJB<br>
     * 
     * @exception IOException o̓G[ꍇ
     */
    public abstract void close() throws IOException;


    //------------------------------------------------------------------
    //  original method
    //------------------------------------------------------------------
    //  write
    //------------------------------------------------------------------
    //  public abstract void writeCode( int code )
    //  public abstract void writeOffset( int offset )
    //------------------------------------------------------------------
    /**
     * 1byte  LZSSk̃f[^́A
     * LZSS ňkꂽkR[ĥvށB<br>
     * kf[^ 0`255A
     * LZSSkR[h(v) 256`510 gp邱ƁB
     * 
     * @param code 1byte  LZSSk̃f[^́A
     *             LZSS ňkꂽkR[ĥv
     * 
     * @exception IOException o̓G[ꍇ
     */
    public abstract void writeCode( int code ) throws IOException;

    /**
     * LZSS ňkꂽkR[ĥvʒuށB<br>
     * 
     * @param offset LZSS ňkꂽkR[ĥvʒu
     * 
     * @exception IOException o̓G[ꍇ
     */
    public abstract void writeOffset( int offset ) throws IOException;


    //------------------------------------------------------------------
    //  original method
    //------------------------------------------------------------------
    //  get LZSS parameter
    //------------------------------------------------------------------
    //  public abstract int getDictionarySize()
    //  public abstract int getMaxMatch()
    //  public abstract int getThreshold()
    //------------------------------------------------------------------
    /**
     * PostLzssEncoderLZSS̃TCY𓾂B
     * 
     * @param LZSS̃TCY
     */
    public abstract int getDictionarySize();

    /**
     * PostLzssEncoderőv𓾂B
     * 
     * @param Œv
     */
    public abstract int getMaxMatch();

    /**
     * PostLzssEncoder鈳kA񈳏k臒l𓾂B
     * 
     * @param kA񈳏k臒l
     */
    public abstract int getThreshold();

}
//end of PostLzssEncoder.java