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Annotation of Examples/IndexingKit/Ledger/GlobalThings.m, revision 1.1

1.1     ! root        1: /*
        !             2:  * Stores the serial number used during the lifetime of the store.
        !             3:  *
        !             4:  * Author: Kris Younger, NeXT Systems Engineering
        !             5:  * You may freely copy, distribute and reuse the code in this example.  
        !             6:  * NeXT disclaims any warranty of any kind, expressed or implied, as to 
        !             7:  * its fitness for any particular use.
        !             8:  */
        !             9: #import "GlobalThings.h"
        !            10: 
        !            11: @implementation GlobalThings
        !            12: - init
        !            13: {
        !            14:     currentSerial = 1;
        !            15:     return self;
        !            16: }
        !            17: - (const char *)identification
        !            18: {
        !            19:        return GLOBALVARIDENT;
        !            20: }
        !            21: /* implement IXRecordTranscription protocol for faster serialization. */
        !            22: - (unsigned int)handle { return runTimeHandle; }
        !            23: 
        !            24: - source: aSource didReadRecord:(unsigned)record
        !            25: {
        !            26:     return self;
        !            27: }
        !            28: 
        !            29: - source:aSource willWriteRecord:(unsigned)record
        !            30: {
        !            31:        if (runTimeHandle == 0) runTimeHandle = record;
        !            32:     return self;
        !            33: }
        !            34: 
        !            35: - (int)currentSerial
        !            36: {
        !            37:     return currentSerial;
        !            38: }
        !            39: 
        !            40: - (int)consumeSerial
        !            41: {
        !            42:     currentSerial += 1;
        !            43:     return currentSerial;
        !            44: }
        !            45: 
        !            46: @end

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