Module datarush.library

Package com.pervasive.datarush.operators

Class OpenModelSource<T>

java.lang.Object

com.pervasive.datarush.operators.AbstractLogicalOperator

com.pervasive.datarush.operators.CompositeOperator

com.pervasive.datarush.operators.OpenModelSource<T>

Type Parameters:

T - the model type

All Implemented Interfaces:

PropertyValued, LogicalOperator, OperatorComposable, SourceOperator<AbstractModelPort<T>>

public final class OpenModelSource<T>
extends CompositeOperator
implements SourceOperator<AbstractModelPort<T>>

A model source that can be externally composed. This is a convenient way to create a grouping of nodes without needing to subclass CompositeOperator.

Constructor Summary

Constructors

Constructor	Description
OpenModelSource(LogicalPortFactory<? extends AbstractModelPort<T>> portFactory)	Create a model source for the given model port type.

Method Summary

Modifier and Type	Method	Description
<O extends LogicalOperator> O	add(O op)	Add a LogicalOperator to this graph, using the short class name as the name of the operator.
<O extends LogicalOperator> O	add(O op, OperatorSettings settings)	Add a LogicalOperator to this graph, specifying advanced operator settings.
<O extends LogicalOperator> O	add(O op, String name)	Add a LogicalOperator to this graph, specifying a name of the operator.
protected void	compose(CompositionContext ctx)	This implementation of compose adds any operators were added to this to the provided composition context and creates any connections that were added to this in the provided composition context.
void	connect(LogicalPort from, LogicalPort to)	Connect two ports together.
void	connectOutput(AbstractModelPort<T> from)
AbstractModelPort<T>	getOutput()	Returns the output port
Object	getProperty(GraphPath path)	Returns a property of the given path.
Object	getProperty(String path)	Returns a property of the given path.
void	setProperty(GraphPath path, Object value)	Sets a property of the given path.
void	setProperty(String path, Object value)	Sets a property of the given path.

Methods inherited from class com.pervasive.datarush.operators.AbstractLogicalOperator

disableParallelism, getInputPorts, getOutputPorts, newInput, newInput, newOutput, newRecordInput, newRecordInput, newRecordOutput, notifyError

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

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

disableParallelism, getInputPorts, getOutputPorts

Constructor Detail

OpenModelSource

public OpenModelSource(LogicalPortFactory<? extends AbstractModelPort<T>> portFactory)

Create a model source for the given model port type. Following construction, callers must create the body by calling add and connect.

Parameters:

portFactory - the factory for the model port, determines the port type

Method Detail

getOutput

public AbstractModelPort<T> getOutput()

Description copied from interface: SourceOperator

Returns the output port

Specified by:

getOutput in interface SourceOperator<T>

Returns:

the output port

connectOutput

public void connectOutput(AbstractModelPort<T> from)

compose

protected final void compose(CompositionContext ctx)

This implementation of compose adds any operators were added to this to the provided composition context and creates any connections that were added to this in the provided composition context.

Specified by:

compose in class CompositeOperator

Parameters:

ctx - the context

add

public final <O extends LogicalOperator> O add(O op)

Description copied from interface: OperatorComposable

Add a LogicalOperator to this graph, using the short class name as the name of the operator.

Specified by:

add in interface OperatorComposable

Type Parameters:

O - the type of the operator.

Parameters:

op - the operator to add to the graph.

Returns:

the same operator that was passed to this method

add

public final <O extends LogicalOperator> O add(O op,
                                               String name)

Description copied from interface: OperatorComposable

Add a LogicalOperator to this graph, specifying a name of the operator.

Specified by:

add in interface OperatorComposable

Type Parameters:

O - the type of the operator.

Parameters:

op - the operator to add to the graph.

name - the name of the the operator

Returns:

the same operator that was passed to this method

add

public final <O extends LogicalOperator> O add(O op,
                                               OperatorSettings settings)

Description copied from interface: OperatorComposable

Add a LogicalOperator to this graph, specifying advanced operator settings.

Specified by:

add in interface OperatorComposable

Type Parameters:

O - the type of the operator.

Parameters:

op - the operator to add to the graph.

settings - operators settings, contains name and other configuration options.

Returns:

the same operator that was passed to this method

connect

public final void connect(LogicalPort from,
                          LogicalPort to)

Description copied from interface: OperatorComposable

Connect two ports together. Depending in the specific context, the source and target operators may be one of the following pairs:

1. From an output port of an operator that was added to this context to an input port of an operator that was added to this context
2. From an input port of the CompositeOperator to an input port of an operator that was added to this context. (Applies to CompositeOperator.compose(com.pervasive.datarush.operators.CompositionContext)).
3. From an output port of an operator that was added to this context to an output port of the CompositeOperator. (Applies to CompositeOperator.compose(com.pervasive.datarush.operators.CompositionContext)).

Note on port types: connecting mixed type ports will generally fail when the graph is compiled.

Note that ports do not store connection information; rather, connection information is stored externally within this context.

Specified by:

connect in interface OperatorComposable

Parameters:

from - the source port

to - the target port

getProperty

public final Object getProperty(GraphPath path)

Description copied from interface: PropertyValued

Returns a property of the given path. Paths are of the form operatorPath.propertyName", where operatorPath is the name of an operator that was added to this graph and propertyName is the name of a property of the object.

Specified by:

getProperty in interface PropertyValued

Parameters:

path - the path to the property.

Returns:

the value of the property

setProperty

public final void setProperty(GraphPath path,
                              Object value)

Description copied from interface: PropertyValued

Sets a property of the given path. Paths are of the form operatorPath.propertyName", where operatorPath is the name of an operator that was added to this graph and propertyName is the name of a property of the object.

Specified by:

setProperty in interface PropertyValued

Parameters:

path - the path to the property.

value - the new value of the property

getProperty

public final Object getProperty(String path)

Description copied from interface: PropertyValued

Returns a property of the given path. Paths are of the form operatorPath.propertyName", where operatorPath is the name of an operator that was added to this graph and propertyName is the name of a property of the object.

Specified by:

getProperty in interface PropertyValued

Parameters:

path - the path to the property.

Returns:

the value of the property

setProperty

public final void setProperty(String path,
                              Object value)

Description copied from interface: PropertyValued

Sets a property of the given path. Paths are of the form operatorPath.propertyName", where operatorPath is the name of an operator that was added to this graph and propertyName is the name of a property of the object.

Specified by:

setProperty in interface PropertyValued

Parameters:

path - the path to the property.

value - the new value of the property