com.espertech.esper.client.soda

Class InExpression

java.lang.Object

com.espertech.esper.client.soda.ExpressionBase

com.espertech.esper.client.soda.InExpression

All Implemented Interfaces:

Expression, Serializable

public class InExpression
extends ExpressionBase

In-expresson checks that a value is in (or not in) a set of values, equivalent to the syntax "color in ('red', 'blue')".

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
InExpression() Ctor.
InExpression(boolean isNotIn) Ctor - for use to create an expression tree, without child expression.
InExpression(Expression value, boolean isNotIn, Expression[] parameters) Ctor.
InExpression(Expression value, boolean isNotIn, Object... parameters) Ctor - for use to create an expression tree, without child expression.

Method Summary

Modifier and Type	Method and Description
InExpression	add(Expression expression) Add an expression to include in the computation.
InExpression	add(Object object) Add a constant to include in the computation.
InExpression	add(String propertyName) Add a property to include in the computation.
boolean	getNotIn() Returns true for the not-in expression, or false for an in-expression.
ExpressionPrecedenceEnum	getPrecedence() Returns precedence.
boolean	isNotIn() Returns true for the not-in expression, or false for an in-expression.
void	setNotIn(boolean notIn) Set to true to indicate this is a not-in expression.
void	toPrecedenceFreeEPL(StringWriter writer) Renders the expressions and all it's child expression, in full tree depth, as a string in language syntax.

Methods inherited from class com.espertech.esper.client.soda.ExpressionBase

addChild, getChildren, getTreeObjectName, renderAggregation, setChildren, setTreeObjectName, toEPL, toPrecedenceFreeEPL, toPrecedenceFreeEPL

Methods inherited from class java.lang.Object

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

Constructor Detail

InExpression

public InExpression()

Ctor.

InExpression

public InExpression(boolean isNotIn)

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

Use add methods to add child expressions to acts upon.

Parameters:

isNotIn - true for the not-in expression, false for the in-expression

InExpression

public InExpression(Expression value,
                    boolean isNotIn,
                    Object... parameters)

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

Use add methods to add child expressions to acts upon.

Parameters:

value - an expression that provides the value to search for in the set

isNotIn - true for the not-in expression, false for the in-expression

parameters - is a set of constants to match against

InExpression

public InExpression(Expression value,
                    boolean isNotIn,
                    Expression[] parameters)

Ctor.

Parameters:

value - expression to check

isNotIn - indicator whether not-in (true) or in (false)

parameters - expression list

Method Detail

isNotIn

public boolean isNotIn()

Returns true for the not-in expression, or false for an in-expression.

Returns:

true for not-in

getNotIn

public boolean getNotIn()

Returns true for the not-in expression, or false for an in-expression.

Returns:

true for not-in

setNotIn

public void setNotIn(boolean notIn)

Set to true to indicate this is a not-in expression.

Parameters:

notIn - true for not-in, false for in-expression

add

public InExpression add(Object object)

Add a constant to include in the computation.

Parameters:

object - constant to add

Returns:

expression

add

public InExpression add(Expression expression)

Add an expression to include in the computation.

Parameters:

expression - to add

Returns:

expression

add

public InExpression add(String propertyName)

Add a property to include in the computation.

Parameters:

propertyName - is the name of the property

Returns:

expression

getPrecedence

public ExpressionPrecedenceEnum getPrecedence()

Description copied from interface: Expression

Returns precedence.

Returns:

precedence

toPrecedenceFreeEPL

public void toPrecedenceFreeEPL(StringWriter writer)

Description copied from class: ExpressionBase

Renders the expressions and all it's child expression, in full tree depth, as a string in language syntax.

Specified by:

toPrecedenceFreeEPL in class ExpressionBase

Parameters:

writer - is the output to use