com.espertech.esper.epl.spec

Class SelectClauseExprRawSpec

java.lang.Object

com.espertech.esper.epl.spec.SelectClauseExprRawSpec

All Implemented Interfaces:

SelectClauseElementRaw, MetaDefItem, java.io.Serializable

public class SelectClauseExprRawSpec
extends java.lang.Object
implements SelectClauseElementRaw

Represents a single item in a SELECT-clause, potentially unnamed as no "as" tag may have been supplied in the syntax.

Compare to SelectClauseExprCompiledSpec which carries a determined name.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
SelectClauseExprRawSpec(ExprNode selectExpression, java.lang.String optionalAsName, boolean isEvents) Ctor.

Method Summary

Modifier and Type	Method and Description
java.lang.String	getOptionalAsName() Returns the name of the item in the select clause.
ExprNode	getSelectExpression() Returns the expression node representing the item in the select clause.
boolean	isEvents()

Methods inherited from class java.lang.Object

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

Constructor Detail

SelectClauseExprRawSpec

public SelectClauseExprRawSpec(ExprNode selectExpression,
                               java.lang.String optionalAsName,
                               boolean isEvents)

Ctor.

Parameters:

selectExpression - - the expression node to evaluate for matching events

optionalAsName - - the name of the item, null if not name supplied

isEvents - - whether event selected

Method Detail

getSelectExpression

public ExprNode getSelectExpression()

Returns the expression node representing the item in the select clause.

Returns:

expression node for item

getOptionalAsName

public java.lang.String getOptionalAsName()

Returns the name of the item in the select clause.

Returns:

name of item

isEvents

public boolean isEvents()