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Java Open Clients
Accessing ABL ProDataSets : ProDataObjectMetaData class : Methods : getExtent( )
getExtent( )
Returns the extent value of the specified column property. If the column property does not represent an array field, the method always returns 0.


int getExtent(int propertyIndex)
Specifies a 0-based index into the ProDataObject property list, limited by the value of getFieldCount( ) method. It returns a value that corresponds to the relative position specified by fieldNumber in setFieldMetaData( ) method.