com.espertech.esper.epl.expression
Interface ExprStreamUnderlyingNode
- All Superinterfaces:
- ExprNode, ExprValidator, MetaDefItem, java.io.Serializable
- All Known Implementing Classes:
- ExprStreamUnderlyingNodeImpl
public interface ExprStreamUnderlyingNode
- extends ExprNode
Represents an stream selector that returns the streams underlying event, or null if undefined.
Methods inherited from interface com.espertech.esper.epl.expression.ExprNode |
accept, accept, acceptChildnodes, addChildNode, addChildNodes, equalsNode, getChildNodes, getExprEvaluator, isConstantResult, replaceUnlistedChildNode, setChildNode, setChildNodes |
getStreamId
int getStreamId()
toExpressionString
java.lang.String toExpressionString()
- Description copied from interface:
ExprNode
- Returns the expression node rendered as a string.
- Specified by:
toExpressionString
in interface ExprNode
- Returns:
- string rendering of expression