com.espertech.esper.client.soda
Class FirstProjectionExpression

java.lang.Object
  com.espertech.esper.client.soda.ExpressionBase
      com.espertech.esper.client.soda.AccessProjectionExpressionBase
          com.espertech.esper.client.soda.FirstProjectionExpression

All Implemented Interfaces:

Expression, java.io.Serializable

public class FirstProjectionExpression
extends AccessProjectionExpressionBase

Represents the "first" aggregation function.

See Also:

Serialized Form

Constructor Summary

FirstProjectionExpression()
Ctor.

FirstProjectionExpression(Expression expression)
Ctor.

Method Summary

java.lang.String

getAggregationFunctionName() Returns the function name of the aggregation function.

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

getPrecedence, toPrecedenceFreeEPL

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

FirstProjectionExpression

public FirstProjectionExpression()

Ctor.

FirstProjectionExpression

public FirstProjectionExpression(Expression expression)

Ctor.

Parameters:

expression - to aggregate

Method Detail

getAggregationFunctionName

public java.lang.String getAggregationFunctionName()

Description copied from class: AccessProjectionExpressionBase

Returns the function name of the aggregation function.

Specified by:

getAggregationFunctionName in class AccessProjectionExpressionBase

Returns:

function name