com.pervasive.datarush.graphs

Interface LogicalSubgraph

All Superinterfaces:

LogicalGraph, OperatorComposable, PropertyValued

public interface LogicalSubgraph
extends LogicalGraph

Extension of LogicalGraph used by IterativeOperator's. A consumer of a LogicalSubgraph can create connections from the IterativeOperator's input ports to other operators in the graph. The subgraph is pre-configured with the EngineConfig that was used to create the top-level graph to which the IterativeOperator was added.

Method Summary

Modifier and Type	Method and Description
<T extends LogicalPort> T	filtered(T original, LogicalPortOptions options) Provides a filtered view of the original port.

Methods inherited from interface com.pervasive.datarush.graphs.LogicalGraph

addCompilationListener, compile, compile, getName, removeCompilationListener, run, run, setName, validate, validate

Methods inherited from interface com.pervasive.datarush.operators.OperatorComposable

add, add, add, connect

Methods inherited from interface com.pervasive.datarush.graphs.PropertyValued

getProperty, getProperty, setProperty, setProperty

Method Detail

filtered

<T extends LogicalPort> T filtered(T original,
                                   LogicalPortOptions options)

Provides a filtered view of the original port. Note that operators should generally not call this method directly. Rather they should use one of the type-safe/convenience methods on the various subclasses of LogicalPort. For example:

    //filtered contains a filtered view of the original port
    RecordPort filtered= input.filtered(subgraph, new RecordPortOptions(selectedFields))
 

Type Parameters:

T - the type of port

Parameters:

original - the original port

options - the port options

Returns:

a filtered view of the original port