READ
Files With Sequential Access Mode
| COBOL | JAVA |
| READ | readSequentialFile |
Syntax
readSequentialFile ( <file>, <buffer>[, <into>], [locking] )
Parameter(s)
<file>
The file id of the file that is being read.
<buffer>
The file buffer, the content that will be read.
<into> (Optional)
Data from the file buffer will be copied into this variable.
<locking> (Optional)
Locking mode (only when open for I-O)
Example(s)
| COBOL | Java |
READ SequentialFile.
|
readSequentialFile(sequentialfile, fd_Seqdata);
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READ SequentialFile INTO recorddata.
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readSequentialFile(sequentialfile, fd_Seqdata, locDef.recorddata);
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READ SequentialFile INTO recorddata
AT END MOVE "Ended" TO filestatus
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if (!(readSequentialFile(sequentialfile, fd_Seqdata, locDef.recorddata))) {
locDef.filestatus.assign("Ended");
}
|
Indexed Files With Sequential Retrieval
| COBOL | JAVA |
| READ | readRandomAccessFileNextRecord |
Syntax
readRandomAccessFileNextRecord ( <file>, <buffer>[, <into>] )
Parameter(s)
<file>
The file id of the file that is being read.
<buffer>
The file buffer, the content that will be read.
<into> (Optional)
Data from the file buffer will be copied into this variable.
<locking> Optional
Locking mode (only for I-O).
Example(s)
| COBOL | Java |
READ IndexedFile NEXT RECORD INTO recorddata.
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readRandomAccessFileNextRecord(indexedfile, fd_Idxdata, locDef.recorddata);
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Indexed Files With Random Retrieval
| COBOL | JAVA |
| READ | readRandomAccessFile |
Syntax
readRandomAccessFile ( <file>, <buffer>, <index>, <locateValue> [, <into>] )
Parameter(s)
<file>
The file id of the file that is being read.
<buffer>
The file buffer, the content that will be read.
<index>
The index key defined with the file.
<locateValue>
The value to look for (Key phrase).
<into> (Optional)
Data from the file buffer will be copied into this variable.
<locking> (Optional)
Locking mode (only for I-O).
Example(s)
| COBOL | Java |
READ IndexedFile.
|
readRandomAccessFile(indexedfile, fd_Idxdata, idx_Idxkey, fd_Idxdata.idxkey);
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READ IndexedFile INTO recorddata.
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readRandomAccessFile(indexedfile, fd_Idxdata, idx_Idxkey, fd_Idxdata.idxkey, locDef.recorddata);
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READ IndexedFile INTO recorddata KEY Idxkey
INVALID KEY MOVE "Invalid key" TO filestatus
NOT INVALID KEY MOVE "OK" TO filestatus.
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if (!(readRandomAccessFile(indexedfile, fd_Idxdata, idx_Idxkey, fd_Idxdata.idxkey, locDef.recorddata))) {
locDef.filestatus.assign("Invalid key");
} else {
locDef.filestatus.assign("OK");
}
|
Relative Files
| COBOL | JAVA |
| READ | readRandomAccessFilePosition |
Syntax
readRandomAccessFilePosition ( <file>, <buffer>, <position>[, <into>] )
Parameter(s)
<file>
The file id of the file that is being read.
<buffer>
The file buffer, the content that will be read.
<position>
The record key field.
<into> (Optional)
Data from the file buffer will be copied into this variable.
Example(s)
| COBOL | Java |
READ RelativeFile.
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ReadRandomAccessFilePosition(Relativefile, m_Fd_Reldata, m_LocDef.Relkey.Value);
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READ RelativeFile INTO recorddata.
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ReadRandomAccessFilePosition(Relativefile, m_Fd_Reldata, m_LocDef.Relkey.Value, m_LocDef.Recorddata);
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