com.espertech.esper.client.soda
Class TypeOfExpression

java.lang.Object
  com.espertech.esper.client.soda.ExpressionBase
      com.espertech.esper.client.soda.TypeOfExpression

All Implemented Interfaces:

Expression, java.io.Serializable

public class TypeOfExpression
extends ExpressionBase

Type-of expression return the type name, as a string value, of the events in the stream if passing a stream name or the fragment event type if passing a property name that results in a fragment event otherwise the class simple name of the expression result or null if the expression returns a null value.

See Also:

Serialized Form

Constructor Summary

TypeOfExpression()
Ctor.

TypeOfExpression(Expression expression)
Ctor.

Method Summary

ExpressionPrecedenceEnum	getPrecedence() Returns precedence.
void	toPrecedenceFreeEPL(java.io.StringWriter writer) Renders the expressions and all it's child expression, in full tree depth, as a string in language syntax.

Methods inherited from class com.espertech.esper.client.soda.ExpressionBase

addChild, getChildren, getTreeObjectName, renderAggregation, setChildren, setTreeObjectName, toEPL, toPrecedenceFreeEPL, toPrecedenceFreeEPL

Methods inherited from class java.lang.Object

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

Constructor Detail

TypeOfExpression

public TypeOfExpression()

Ctor.

TypeOfExpression

public TypeOfExpression(Expression expression)

Ctor.

Parameters:

expression - for which to return the result type or null if the result is null

Method Detail

getPrecedence

public ExpressionPrecedenceEnum getPrecedence()

Description copied from interface: Expression

Returns precedence.

Returns:

precedence

toPrecedenceFreeEPL

public void toPrecedenceFreeEPL(java.io.StringWriter writer)

Description copied from class: ExpressionBase

Renders the expressions and all it's child expression, in full tree depth, as a string in language syntax.

Specified by:

toPrecedenceFreeEPL in class ExpressionBase

Parameters:

writer - is the output to use