org.drools.core.rule

Class EntryPointId

java.lang.Object

org.drools.core.rule.ConditionalElement

org.drools.core.rule.EntryPointId

All Implemented Interfaces:

Externalizable, Serializable, Cloneable, PatternSource, RuleConditionElement, RuleComponent

public class EntryPointId
extends ConditionalElement
implements PatternSource, Externalizable

This class defines a Rete "Entry Point". An entry point is used as a source of facts that are scoped to a separate alpha network. The alpha network is not shared among separate entry points and this allows them to safelly run in parallel and concurrent modes.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static EntryPointId	DEFAULT

Constructor Summary

Constructors

Constructor and Description
EntryPointId()
EntryPointId(String entryPointId) Constructor.

Method Summary

Modifier and Type	Method and Description
EntryPointId	clone() There is not reason to clone this object since it is stateless.
boolean	equals(Object obj)
String	getEntryPointId()
Map<String,Declaration>	getInnerDeclarations() It is not possible to declare any new variables, so always return an Empty Map
List<? extends RuleConditionElement>	getNestedElements() It is not possible to nest elements inside an entry point, so always return an empty list.
Map<String,Declaration>	getOuterDeclarations() It is not possible to declare and export any variables, so always return an empty map
int	hashCode()
boolean	isPatternScopeDelimiter() Returns true in case this RuleConditionElement delimits a pattern visibility scope.
void	readExternal(ObjectInput in)
boolean	requiresLeftActivation()
Declaration	resolveDeclaration(String identifier) Not possible to resolve any declaration, so always return null.
String	toString()
void	writeExternal(ObjectOutput out)

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

DEFAULT

public static final EntryPointId DEFAULT

Constructor Detail

EntryPointId

public EntryPointId()

EntryPointId

public EntryPointId(String entryPointId)

Constructor.

Parameters:

entryPointId - the ID for this entry point

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 EntryPointId clone()

There is not reason to clone this object since it is stateless. So a clone() call will return the instance itself.

Specified by:

clone in interface RuleConditionElement

Specified by:

clone in class ConditionalElement

Returns:

getInnerDeclarations

public Map<String,Declaration> getInnerDeclarations()

It is not possible to declare any new variables, so always return an Empty Map

Specified by:

getInnerDeclarations in interface RuleConditionElement

Returns:

getNestedElements

public List<? extends RuleConditionElement> getNestedElements()

It is not possible to nest elements inside an entry point, so always return an empty list.

Specified by:

getNestedElements in interface RuleConditionElement

Returns:

getOuterDeclarations

public Map<String,Declaration> getOuterDeclarations()

It is not possible to declare and export any variables, so always return an empty map

Specified by:

getOuterDeclarations in interface RuleConditionElement

Returns:

resolveDeclaration

public Declaration resolveDeclaration(String identifier)

Not possible to resolve any declaration, so always return null.

Specified by:

resolveDeclaration in interface RuleConditionElement

Returns:

getEntryPointId

public String getEntryPointId()

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object

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