org.drools.core.rule
Class EvalCondition

java.lang.Object
  org.drools.core.rule.ConditionalElement
      org.drools.core.rule.EvalCondition

All Implemented Interfaces:

Externalizable, Serializable, Cloneable, RuleConditionElement, RuleComponent, Wireable

public class EvalCondition
extends ConditionalElement
implements Externalizable, Wireable

See Also:

Serialized Form

Nested Class Summary

static class

EvalCondition.SafeEvalExpression

Constructor Summary

EvalCondition()

EvalCondition(Declaration[] requiredDeclarations)

EvalCondition(EvalExpression eval, Declaration[] requiredDeclarations)

Method Summary

EvalCondition	clone() Returns a clone from itself
Object	createContext()
boolean	equals(Object object)
EvalExpression	getEvalExpression()
Map	getInnerDeclarations() Returns a Map of declarations that are visible inside this conditional element
List	getNestedElements() Returs a list of RuleConditionElement's that are nested inside the current element
Map	getOuterDeclarations() Returns a Map of declarations that are visible outside this conditional element.
Declaration[]	getRequiredDeclarations()
int	hashCode()
boolean	isAllowed(Tuple tuple, WorkingMemory workingMemory, Object context)
boolean	isPatternScopeDelimiter() Returns true in case this RuleConditionElement delimits a pattern visibility scope.
void	readExternal(ObjectInput in)
void	replaceDeclaration(Declaration declaration, Declaration resolved)
Declaration	resolveDeclaration(String identifier) Resolves the given identifier in the current scope and returns the Declaration object for the declaration.
void	setEvalExpression(EvalExpression expression)
String	toString()
void	wire(Object object)
void	writeExternal(ObjectOutput out)

Methods inherited from class java.lang.Object

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

Constructor Detail

EvalCondition

public EvalCondition()

EvalCondition

public EvalCondition(Declaration[] requiredDeclarations)

EvalCondition

public EvalCondition(EvalExpression eval,
                     Declaration[] requiredDeclarations)

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

getEvalExpression

public EvalExpression getEvalExpression()

wire

public void wire(Object object)

Specified by:

wire in interface Wireable

setEvalExpression

public void setEvalExpression(EvalExpression expression)

getRequiredDeclarations

public Declaration[] getRequiredDeclarations()

createContext

public Object createContext()

isAllowed

public boolean isAllowed(Tuple tuple,
                         WorkingMemory workingMemory,
                         Object context)

clone

public EvalCondition clone()

Description copied from interface: RuleConditionElement

Returns a clone from itself

Specified by:

clone in interface RuleConditionElement

Specified by:

clone in class ConditionalElement

Returns:

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object object)

Overrides:

equals in class Object

getInnerDeclarations

public Map 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 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:

getNestedElements

public List 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:

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:

replaceDeclaration

public void replaceDeclaration(Declaration declaration,
                               Declaration resolved)

toString

public String toString()

Overrides:

toString in class Object