com.espertech.esper.client.soda

Class CreateExpressionClause

java.lang.Object

com.espertech.esper.client.soda.CreateExpressionClause

All Implemented Interfaces:

Serializable

public class CreateExpressionClause
extends Object
implements Serializable

Clause for creating an expression for use across one or more statements.

Both expressions and scripts can be created using this clause.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
CreateExpressionClause() Ctor.
CreateExpressionClause(ExpressionDeclaration expressionDeclaration) Ctor.
CreateExpressionClause(ScriptExpression scriptExpression) Ctor.

Method Summary

Modifier and Type	Method and Description
ExpressionDeclaration	getExpressionDeclaration() Returns the expression declaration or null if script instead.
ScriptExpression	getScriptExpression() Returns the script expression or null if declaring an EPL expression.
void	setExpressionDeclaration(ExpressionDeclaration expressionDeclaration) Sets the expression declaration or null if script instead.
void	setScriptExpression(ScriptExpression scriptExpression) Sets the script expression or null if declaring an EPL expression.
void	toEPL(StringWriter writer) EPL output

Methods inherited from class java.lang.Object

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

Constructor Detail

CreateExpressionClause

public CreateExpressionClause()

Ctor.

CreateExpressionClause

public CreateExpressionClause(ExpressionDeclaration expressionDeclaration)

Ctor.

Parameters:

expressionDeclaration - expression

CreateExpressionClause

public CreateExpressionClause(ScriptExpression scriptExpression)

Ctor.

Parameters:

scriptExpression - script

Method Detail

getExpressionDeclaration

public ExpressionDeclaration getExpressionDeclaration()

Returns the expression declaration or null if script instead.

Returns:

expression declaration

setExpressionDeclaration

public void setExpressionDeclaration(ExpressionDeclaration expressionDeclaration)

Sets the expression declaration or null if script instead.

Parameters:

expressionDeclaration - expression declaration

getScriptExpression

public ScriptExpression getScriptExpression()

Returns the script expression or null if declaring an EPL expression.

Returns:

script expression

setScriptExpression

public void setScriptExpression(ScriptExpression scriptExpression)

Sets the script expression or null if declaring an EPL expression.

Parameters:

scriptExpression - script expression

toEPL

public void toEPL(StringWriter writer)

EPL output

Parameters:

writer - to write to