com.espertech.esper.epl.spec
Class SelectClauseExprCompiledSpec

java.lang.Object
  com.espertech.esper.epl.spec.SelectClauseExprCompiledSpec

All Implemented Interfaces:

SelectClauseElementCompiled

public class SelectClauseExprCompiledSpec
extends java.lang.Object
implements SelectClauseElementCompiled

Represents a single item in a SELECT-clause, with a name assigned either by the engine or by the user specifying an "as" tag name.

Constructor Summary

SelectClauseExprCompiledSpec(ExprNode selectExpression, java.lang.String assignedName, java.lang.String providedName, boolean isEvents)
Ctor.

Method Summary

java.lang.String	getAssignedName() Returns the name of the item in the select clause.
java.lang.String	getProvidedName()
ExprNode	getSelectExpression() Returns the expression node representing the item in the select clause.
boolean	isEvents()
void	setAssignedName(java.lang.String assignedName) Sets the column name for the select expression.
void	setEvents(boolean events)
void	setSelectExpression(ExprNode selectExpression) Sets the select expression to use.

Methods inherited from class java.lang.Object

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

Constructor Detail

SelectClauseExprCompiledSpec

public SelectClauseExprCompiledSpec(ExprNode selectExpression,
                                    java.lang.String assignedName,
                                    java.lang.String providedName,
                                    boolean isEvents)

Ctor.

Parameters:

selectExpression - - the expression node to evaluate for matching events

assignedName - - cannot be null as a name is always assigned or system-determined

Method Detail

getSelectExpression

public ExprNode getSelectExpression()

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

Returns:

expression node for item

getAssignedName

public java.lang.String getAssignedName()

Returns the name of the item in the select clause.

Returns:

name of item

setSelectExpression

public void setSelectExpression(ExprNode selectExpression)

Sets the select expression to use.

Parameters:

selectExpression - to set

setAssignedName

public void setAssignedName(java.lang.String assignedName)

Sets the column name for the select expression.

Parameters:

assignedName - is the column name

getProvidedName

public java.lang.String getProvidedName()

isEvents

public boolean isEvents()

setEvents

public void setEvents(boolean events)