com.espertech.esper.common.client.soda

Class SelectClauseExpression

java.lang.Object

com.espertech.esper.common.client.soda.SelectClauseExpression

All Implemented Interfaces:

SelectClauseElement, Serializable

public class SelectClauseExpression
extends Object
implements SelectClauseElement

Part of a select-clause to describe individual select-clause expressions.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
SelectClauseExpression() Ctor.
SelectClauseExpression(Expression expression) Ctor.
SelectClauseExpression(Expression expression, String optionalAsName) Ctor.

Method Summary

Modifier and Type	Method and Description
String	getAsName() Returns the optional "as"-name of the expression, or null if not defined
Expression	getExpression() Returns the selection expression.
boolean	isAnnotatedByEventFlag() Returns indicator whether annotated as "@eventbean"
void	setAnnotatedByEventFlag(boolean annotatedByEventFlag) Sets indicator whether annotated as "@eventbean"
void	setAsName(String asName) Sets the optional "as"-name of the expression, or null if not defined
void	setExpression(Expression expression) Sets the selection expression.
void	toEPLElement(StringWriter writer) Renders the element in textual representation.

Methods inherited from class java.lang.Object

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

Constructor Detail

SelectClauseExpression

public SelectClauseExpression()

Ctor.

SelectClauseExpression

public SelectClauseExpression(Expression expression)

Ctor.

Parameters:

expression - is the selection expression

SelectClauseExpression

public SelectClauseExpression(Expression expression,
                              String optionalAsName)

Ctor.

Parameters:

expression - is the selection expression

optionalAsName - is the "as"-tag for the expression

Method Detail

getExpression

public Expression getExpression()

Returns the selection expression.

Returns:

expression

setExpression

public void setExpression(Expression expression)

Sets the selection expression.

Parameters:

expression - is the selection expression

getAsName

public String getAsName()

Returns the optional "as"-name of the expression, or null if not defined

Returns:

tag or null for selection expression

setAsName

public void setAsName(String asName)

Sets the optional "as"-name of the expression, or null if not defined

Parameters:

asName - column name or null for selection expression

isAnnotatedByEventFlag

public boolean isAnnotatedByEventFlag()

Returns indicator whether annotated as "@eventbean"

Returns:

"@eventbean" indicator

setAnnotatedByEventFlag

public void setAnnotatedByEventFlag(boolean annotatedByEventFlag)

Sets indicator whether annotated as "@eventbean"

Parameters:

annotatedByEventFlag - "@eventbean" indicator

toEPLElement

public void toEPLElement(StringWriter writer)

Renders the element in textual representation.

Specified by:

toEPLElement in interface SelectClauseElement

Parameters:

writer - to output to