com.miginfocom.util.filter
Class ExpressionFilter

java.lang.Object
  com.miginfocom.util.filter.ExpressionFilter

All Implemented Interfaces:

Filter, java.io.Serializable

public class ExpressionFilter
extends java.lang.Object
implements Filter

A Filter that filters on the evaluation of an Expression.

For instance to filter on a property of a category (here if it is showing):

 new LogicalExpression(Category.PROP_IS_HIDDEN, LogicalExpression.NOT_EQUALS, Boolean.TRUE);
 

See Also:

Serialized Form

Constructor Summary

ExpressionFilter(java.lang.String name, Expression expr)
Constructor.

Method Summary

boolean	accept(java.lang.Object propertyProvider) Do an evaluation on the PropertyProvider and returns it.
Expression	getExpression() Returns the expression.
java.lang.String	getName() Returns a human readable name for the filter.

Methods inherited from class java.lang.Object

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

Constructor Detail

ExpressionFilter

public ExpressionFilter(java.lang.String name,
                        Expression expr)

Constructor.

Parameters:

expr - The expression that will be given a PropertyProvider to be evaluated. Not null.

Method Detail

getName

public java.lang.String getName()

Description copied from interface: Filter

Returns a human readable name for the filter.

Specified by:

getName in interface Filter

Returns:

A human readable name for the filter.

getExpression

public Expression getExpression()

Returns the expression.

Returns:

The expression.

accept

public final boolean accept(java.lang.Object propertyProvider)

Do an evaluation on the PropertyProvider and returns it.

Specified by:

accept in interface Filter

Parameters:

propertyProvider - The PropertyProvider that will be evaluated.

Returns:

If it's accepted