Package org.drools.base.rule

Class QueryElement

java.lang.Object

org.drools.base.rule.ConditionalElement

org.drools.base.rule.QueryElement

All Implemented Interfaces:

Externalizable, Serializable, Cloneable, RuleComponent, RuleConditionElement

public class QueryElement
extends ConditionalElement
implements Externalizable

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
QueryElement()
QueryElement(Pattern resultPattern, String queryName, QueryArgument[] arguments, int[] variableIndexes, Declaration[] requiredDeclarations, boolean openQuery, boolean abductive)

Method Summary

Modifier and Type	Method	Description
QueryElement	clone()	Returns a clone from itself
boolean	equals(Object obj)
QueryArgument[]	getArguments()
Map<String,Declaration>	getInnerDeclarations()	Returns a Map of declarations that are visible inside this conditional element
List<? extends RuleConditionElement>	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.
String	getQueryName()
Declaration[]	getRequiredDeclarations()
Pattern	getResultPattern()
int[]	getVariableIndexes()
int	hashCode()
boolean	isAbductive()
boolean	isOpenQuery()
boolean	isPatternScopeDelimiter()	Returns true in case this RuleConditionElement delimits a pattern visibility scope.
void	readExternal(ObjectInput in)
Declaration	resolveDeclaration(String identifier)	Resolves the given identifier in the current scope and returns the Declaration object for the declaration.
void	setVariableIndexes(int[] variableIndexes)
String	toString()
void	writeExternal(ObjectOutput out)

Methods inherited from class java.lang.Object

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

Constructor Details

QueryElement

public QueryElement()

QueryElement

public QueryElement(Pattern resultPattern,
 String queryName,
 QueryArgument[] arguments,
 int[] variableIndexes,
 Declaration[] requiredDeclarations,
 boolean openQuery,
 boolean abductive)

Method Details

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Throws:

IOException

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Throws:

IOException

ClassNotFoundException

getVariableIndexes

public int[] getVariableIndexes()

setVariableIndexes

public void setVariableIndexes(int[] variableIndexes)

getQueryName

public String getQueryName()

getArguments

public QueryArgument[] getArguments()

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:

getNestedElements

public List<? extends RuleConditionElement> 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:

getResultPattern

public Pattern getResultPattern()

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:

getRequiredDeclarations

public Declaration[] getRequiredDeclarations()

isOpenQuery

public boolean isOpenQuery()

isAbductive

public boolean isAbductive()

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:

clone

public QueryElement clone()

Description copied from interface: RuleConditionElement

Returns a clone from itself

Specified by:

clone in interface RuleConditionElement

Specified by:

clone in class ConditionalElement

Returns:

toString

public String toString()

Overrides:

toString in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object