Package org.drools.core.rule

Class Collect

java.lang.Object

org.drools.core.rule.ConditionalElement

org.drools.core.rule.Collect

All Implemented Interfaces:

Externalizable, Serializable, Cloneable, PatternSource, RuleComponent, RuleConditionElement

public class Collect
extends ConditionalElement
implements PatternSource

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
Collect()
Collect(Pattern sourcePattern, Pattern resultPattern)

Method Summary

Modifier and Type	Method	Description
Collect	clone()	Returns a clone from itself
Map<String,Declaration>	getInnerDeclarations()	Returns a Map of declarations that are visible inside this conditional element
List<Pattern>	getNestedElements()	Returs a list of RuleConditionElement's that are nested inside the current element
Map<String,Declaration>	getOuterDeclarations()	Returns a Map of declarations that are visible outside this conditional element.
Pattern	getResultPattern()
Pattern	getSourcePattern()
Collection<Object>	instantiateResultObject(ReteEvaluator reteEvaluator)
boolean	isPatternScopeDelimiter()	Returns true in case this RuleConditionElement delimits a pattern visibility scope.
void	readExternal(ObjectInput in)
boolean	requiresLeftActivation()
Declaration	resolveDeclaration(String identifier)	Resolves the given identifier in the current scope and returns the Declaration object for the declaration.
void	writeExternal(ObjectOutput out)

Methods inherited from class java.lang.Object

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

Constructor Detail

Collect

public Collect()

Collect

public Collect(Pattern sourcePattern,
               Pattern resultPattern)

Method Detail

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Throws:

IOException

ClassNotFoundException

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Throws:

IOException

clone

public Collect clone()

Description copied from interface: RuleConditionElement

Returns a clone from itself

Specified by:

clone in interface RuleConditionElement

Specified by:

clone in class ConditionalElement

Returns:

getResultPattern

public Pattern getResultPattern()

getSourcePattern

public Pattern getSourcePattern()

instantiateResultObject

public Collection<Object> instantiateResultObject(ReteEvaluator reteEvaluator)
                                           throws RuntimeException

Throws:

RuntimeException

getInnerDeclarations

public Map<String,Declaration> getInnerDeclarations()

Description copied from interface: RuleConditionElement

Returns a Map of declarations that are visible inside this conditional element

Specified by:

getInnerDeclarations in interface RuleConditionElement

Returns:

getOuterDeclarations

public Map<String,Declaration> getOuterDeclarations()

Description copied from interface: RuleConditionElement

Returns a Map of declarations that are visible outside this conditional element.

Specified by:

getOuterDeclarations in interface RuleConditionElement

Returns:

resolveDeclaration

public Declaration resolveDeclaration(String identifier)

Description copied from interface: RuleConditionElement

Resolves the given identifier in the current scope and returns the Declaration object for the declaration. Returns null if identifier can not be resolved.

Specified by:

resolveDeclaration in interface RuleConditionElement

Returns:

getNestedElements

public List<Pattern> getNestedElements()

Description copied from interface: RuleConditionElement

Returs a list of RuleConditionElement's that are nested inside the current element

Specified by:

getNestedElements in interface RuleConditionElement

Returns:

isPatternScopeDelimiter

public boolean isPatternScopeDelimiter()

Description copied from interface: RuleConditionElement

Returns true in case this RuleConditionElement delimits a pattern visibility scope. For instance, AND CE is not a scope delimiter, while NOT CE is a scope delimiter

Specified by:

isPatternScopeDelimiter in interface RuleConditionElement

Returns:

requiresLeftActivation

public boolean requiresLeftActivation()

Specified by:

requiresLeftActivation in interface PatternSource