Micro Focus Visual COBOL 2.3 for Eclipse (Windows) > General Reference > Managed COBOL > Managed COBOL Reference > Structural Syntax Elements - Alphabetic List > Indexers

Indexers

Indexers resemble properties except that their accessors take parameters. Indexers allow instances of a class or valuetype to be indexed just like arrays.

Context:

    Classes
    ValueTypes 
    Interfaces
        Type Members

indexer-specification

indexer-header

Example

In the following example, a class is defined and provided with simple getter and setters as a means of assigning and retrieving values. Square brackets used to access arrays, use 0-based indexing. Round brackets use 1-based indexing.

       class-id SimpleIndexer.
       01 myArray string occurs 100.

       indexer-id string.
       procedure division using by value i as binary-long.
       getter.
           set property-value to myArray[i]
       setter.
           set myArray[i] to property-value
       end indexer.

       end class.

See also the IndexerDemo.cbl in the Indexers sample, available from Start > All Programs > Micro Focus Visual COBOL > Samples , under COBOL for JVM (Windows) or $COBDIR/demo (UNIX).