org.drools.semantics.python
Class PythonCondition

java.lang.Object
  org.drools.semantics.python.PythonInterp
      org.drools.semantics.python.PythonCondition

All Implemented Interfaces:

java.io.Serializable, SemanticComponent, Condition, RuleComponent

public class PythonCondition
extends PythonInterp
implements Condition, SemanticComponent

Python expression semantics Condition.

See Also:

Serialized Form

Field Summary

protected java.lang.String	name
protected java.lang.String	semanticType

Constructor Summary

PythonCondition(java.lang.String text, Rule rule)
Construct.

Method Summary

java.util.Iterator	declarationIterator() PythonInterp needs a declaration iterator.
boolean	equals(java.lang.Object object)
java.lang.String	getName() Returns the name of the component
Declaration[]	getRequiredTupleMembers() Retrieve the array of Declaration s required by this condition to perform its duties.
java.lang.String	getSemanticType()
int	hashCode()
boolean	isAllowed(Tuple tuple) Determine if the supplied Tuple is allowed by this condition.

Methods inherited from class org.drools.semantics.python.PythonInterp

getCode, getGlobals, getGlobals, getNode, getRule, getText, setUpDictionary, stripOuterIndention

Methods inherited from class java.lang.Object

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

Field Detail

semanticType

protected final java.lang.String semanticType

See Also:

Constant Field Values

name

protected final java.lang.String name

Constructor Detail

PythonCondition

public PythonCondition(java.lang.String text,
                       Rule rule)
                throws java.lang.Exception

Construct.

Throws:

java.lang.Exception

Method Detail

getSemanticType

public java.lang.String getSemanticType()

Specified by:

getSemanticType in interface SemanticComponent

getName

public java.lang.String getName()

Description copied from interface: SemanticComponent

Returns the name of the component

Specified by:

getName in interface SemanticComponent

isAllowed

public boolean isAllowed(Tuple tuple)
                  throws ConditionException

Determine if the supplied Tuple is allowed by this condition.

Specified by:

isAllowed in interface Condition

Parameters:

tuple - The Tuple to test.

Returns:

true if the Tuple passes this condition, else false.

Throws:

ConditionException - if an error occurs during filtering.

getRequiredTupleMembers

public Declaration[] getRequiredTupleMembers()

Retrieve the array of Declaration s required by this condition to perform its duties.

Specified by:

getRequiredTupleMembers in interface Condition

Returns:

The array of Declarations expected on incoming Tuples.

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object object)

Overrides:

equals in class java.lang.Object

declarationIterator

public java.util.Iterator declarationIterator()

PythonInterp needs a declaration iterator. BlockConsequence uses the Iterator from Set. So we emulate Iterator here so PythonInterp can be used for both.

Returns: