org.mule.runtime.core.routing.filters

Class ExpressionFilter

java.lang.Object

org.mule.runtime.core.routing.filters.ExpressionFilter

All Implemented Interfaces:

MuleContextAware, Filter

public class ExpressionFilter
extends Object
implements Filter, MuleContextAware

Allows boolean expressions to be executed on a message. Note that when using this filter you must be able to either specify a boolean expression when using an expression filter or use one of the standard Mule filters. Otherwise you can use eny expression filter providing you can define a boolean expression i.e. #[mel:xpath:count(/Foo/Bar) == 0] Note that it if the expression is not a boolean expression this filter will return true if the expression returns a result

Field Summary

Fields

Modifier and Type	Field and Description
protected org.slf4j.Logger	logger logger used by this class

Constructor Summary

Constructors

Constructor and Description
ExpressionFilter()
ExpressionFilter(String expression)

Method Summary

Modifier and Type	Method and Description
boolean	accept(Event event, Event.Builder builder) Check a given event against this filter.
boolean	accept(org.mule.runtime.api.message.Message message, Event.Builder builder) Check a given message against this filter.
boolean	equals(Object obj)
String	getExpression()
protected String	getFullExpression()
int	hashCode()
boolean	isNullReturnsTrue()
void	setExpression(String expression)
void	setMuleContext(MuleContext context)
void	setNullReturnsTrue(boolean nullReturnsTrue)

Methods inherited from class java.lang.Object

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

Field Detail

logger

protected final transient org.slf4j.Logger logger

logger used by this class

Constructor Detail

ExpressionFilter

public ExpressionFilter(String expression)

ExpressionFilter

public ExpressionFilter()

Method Detail

setMuleContext

public void setMuleContext(MuleContext context)

Specified by:

setMuleContext in interface MuleContextAware

Parameters:

context - the Mule node.

accept

public boolean accept(org.mule.runtime.api.message.Message message,
                      Event.Builder builder)

Check a given message against this filter.

Specified by:

accept in interface Filter

Parameters:

message - a non null message to filter.

builder - an event builder in case the filter needs to make changes to the event.

Returns:

true if the message matches the filter

accept

public boolean accept(Event event,
                      Event.Builder builder)

Check a given event against this filter.

Specified by:

accept in interface Filter

Parameters:

event - a non null event to filter.

builder - an event builder in case the filter needs to make changes to the event.

Returns:

true if the event matches the filter

getFullExpression

protected String getFullExpression()

getExpression

public String getExpression()

setExpression

public void setExpression(String expression)

isNullReturnsTrue

public boolean isNullReturnsTrue()

setNullReturnsTrue

public void setNullReturnsTrue(boolean nullReturnsTrue)

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object