Release 10.1A: OpenEdge Development:
Java Open Clients

Finding a row in a ProDataGraph

You can find a row (ProDataObject instance) in a ProDataGraph in different ways, depending on how the tables (ProDataObject collections) are related (what ProDataRelationMetaData is associated with the ProDataGraph). If a table does not participate in any data-relations, the only way to find a row is to search through the entire ProDataObject list that you can get using the ProDataGraph getProDataObjects() method for a given table. If you know that a table you are searching participates in a data-relation, you can use the data-relation to find related parent and child rows for each ProDataObject in the table.

Finding parent rows

With the name of a data-relation that identifies a parent table, you can use the ProDataObject getParentRow() method to return the parent row for a ProDataObject instance.

Finding child rows

With the name of a data-relation that identifies a child table, you can use the ProDataObject getChildRows() method to return a list of child rows for a ProDataObject instance. You can then search this filtered list of child rows to find the appropriate ProDataObject.

For more information on retrieving data from an output ProDataGraph, see the "Passing a ProDataGraph as OUTPUT" section.