org.wso2.siddhi.core.util.collection.expression

Class NullCollectionExpression

java.lang.Object

org.wso2.siddhi.core.util.collection.expression.NullCollectionExpression

All Implemented Interfaces:

CollectionExpression

public class NullCollectionExpression
extends Object
implements CollectionExpression

Implementation of CollectionExpression which represent Null expressions.

Nested Class Summary

Nested classes/interfaces inherited from interface org.wso2.siddhi.core.util.collection.expression.CollectionExpression

CollectionExpression.CollectionScope

Constructor Summary

Constructors

Constructor and Description
NullCollectionExpression(org.wso2.siddhi.query.api.expression.Expression expression, CollectionExpression.CollectionScope collectionScope, String attribute)

Method Summary

Modifier and Type	Method and Description
String	getAttribute()
CollectionExpression.CollectionScope	getCollectionScope()
org.wso2.siddhi.query.api.expression.Expression	getExpression()
Set<String>	getMultiPrimaryKeys()

Methods inherited from class java.lang.Object

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

Constructor Detail

NullCollectionExpression

public NullCollectionExpression(org.wso2.siddhi.query.api.expression.Expression expression,
                                CollectionExpression.CollectionScope collectionScope,
                                String attribute)

Method Detail

getExpression

public org.wso2.siddhi.query.api.expression.Expression getExpression()

Specified by:

getExpression in interface CollectionExpression

getCollectionScope

public CollectionExpression.CollectionScope getCollectionScope()

Specified by:

getCollectionScope in interface CollectionExpression

getMultiPrimaryKeys

public Set<String> getMultiPrimaryKeys()

Specified by:

getMultiPrimaryKeys in interface CollectionExpression

getAttribute

public String getAttribute()