Package org.drools.base.rule

Class From

java.lang.Object

org.drools.base.rule.ConditionalElement

org.drools.base.rule.From

All Implemented Interfaces:

Externalizable, Serializable, Cloneable, Wireable, PatternSource, RuleComponent, RuleConditionElement

public class From
extends ConditionalElement
implements Externalizable, Wireable, PatternSource

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface org.drools.base.rule.accessor.Wireable

Wireable.Immutable

Constructor Summary

Constructors

Constructor	Description
From()
From(DataProvider dataProvider)

Method Summary

Modifier and Type	Method	Description
From	clone()	Returns a clone from itself
boolean	equals(Object obj)
DataProvider	getDataProvider()
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.
Class<?>	getResultClass()
Pattern	getResultPattern()
int	hashCode()
boolean	isPatternScopeDelimiter()	Returns true in case this RuleConditionElement delimits a pattern visibility scope.
boolean	isReactive()
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	setResultClass(Class<?> resultClass)
void	setResultPattern(Pattern pattern)
void	wire(Object object)
void	writeExternal(ObjectOutput out)

Methods inherited from class java.lang.Object

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

Constructor Details

From

public From()

From

public From(DataProvider dataProvider)

Method Details

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

isReactive

public boolean isReactive()

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

wire

public void wire(Object object)

Specified by:

wire in interface Wireable

getDataProvider

public DataProvider getDataProvider()

clone

public From clone()

Description copied from interface: RuleConditionElement

Returns a clone from itself

Specified by:

clone in interface RuleConditionElement

Specified by:

clone in class ConditionalElement

Returns:

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:

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 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:

setResultPattern

public void setResultPattern(Pattern pattern)

getResultPattern

public Pattern getResultPattern()

getResultClass

public Class<?> getResultClass()

setResultClass

public void setResultClass(Class<?> resultClass)

requiresLeftActivation

public boolean requiresLeftActivation()

Specified by:

requiresLeftActivation in interface PatternSource