net.esper.client.soda
Class CastExpression

java.lang.Object
  net.esper.client.soda.ExpressionBase
      net.esper.client.soda.CastExpression

All Implemented Interfaces:

Serializable, Expression

public class CastExpression
extends ExpressionBase

Cast expression casts the return value of an expression to a specified type.

See Also:

Serialized Form

Constructor Summary

CastExpression(Expression expressionToCheck, String typeName)
Ctor.

CastExpression(String typeName)
Ctor - for use to create an expression tree, without child expression.

Method Summary

String	getTypeName() Returns the name of the type to cast to.
void	setTypeName(String typeName) Sets the name of the type to cast to.
void	toEQL(StringWriter writer) Renders the clause in textual representation.

Methods inherited from class net.esper.client.soda.ExpressionBase

addChild, getChildren

Methods inherited from class java.lang.Object

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

Constructor Detail

CastExpression

public CastExpression(String typeName)

Ctor - for use to create an expression tree, without child expression.

Parameters:

typeName - is the type to cast to: a fully-qualified class name or Java primitive type name or "string"

CastExpression

public CastExpression(Expression expressionToCheck,
                      String typeName)

Ctor.

Parameters:

expressionToCheck - provides values to cast

typeName - is the type to cast to: a fully-qualified class names or Java primitive type names or "string"

Method Detail

toEQL

public void toEQL(StringWriter writer)

Renders the clause in textual representation.

Parameters:

writer - to output to

getTypeName

public String getTypeName()

Returns the name of the type to cast to.

Returns:

type name

setTypeName

public void setTypeName(String typeName)

Sets the name of the type to cast to.

Parameters:

typeName - is the name of type to cast to