com.microfocus.cobol.lang
Interface DataType

All Known Subinterfaces:

DataType

All Known Implementing Classes:

CobolBigDecimal, CobolBigInteger, CobolDate, CobolNational, CobolRecord, CobolTime, Comp3, DataTypeArray, Pointer, Pointer

public interface DataType

Interface for creatinng user defined COBOL datatypes

Copyright: Copyright (c) 2002-2003
Company: Micro Focus International Ltd

Since:

Net Express 4.0, Server Express 4.0
The mapping in the Java programming for user defined COBOL Datatypes is performed by implementing the Datatype interface.

The COBOL Runtime will invoke the getBytes() method to find its COBOL representation and pass it "by reference" into the COBOL program. Once the COBOL program has returned to the Runtime support, the synchronizeData() method is called. This allows the Java class time to synchronize the COBOL representation with any private fields contained within the class instance.

For a working example, see the RecordDemo in the demos directory of your COBOL product.

Version:

3.9, 2/4/03

See Also:

Pointer

Method Summary

byte[]	getBytes() getBytes() is a callback method that is called from the COBOL Runtime to access the byte[] representation of the Java instance.
void	synchronizeData() synchronizeData() is a callback method that allows a user defined Java COBOL datatype class to synchronize its internal fields with the updated byte[] representation.

Method Detail

getBytes

public byte[] getBytes()
                throws CobolException,
                       Exception

getBytes() is a callback method that is called from the COBOL Runtime to access the byte[] representation of the Java instance.

Returns:

byte[] of the Java instance

Throws:

CobolException

Exception

synchronizeData

public void synchronizeData()
                     throws CobolException,
                            Exception

synchronizeData() is a callback method that allows a user defined Java COBOL datatype class to synchronize its internal fields with the updated byte[] representation.

Throws:

CobolException

Exception