Package io.rtr.alchemy.filtering

Class FilterExpression

java.lang.Object

io.rtr.alchemy.filtering.FilterExpression

public class FilterExpression
extends Object

Allows evaluation of a filter expression which tests whether given attributes are present

Method Summary

Modifier and Type	Method	Description
static FilterExpression	alwaysTrue()
boolean	equals(Object obj)
boolean	evaluate(AttributesMap attributes)	Evaluates the filter
int	hashCode()
static boolean	isValid(String expression)
static FilterExpression	of(String expression)
String	toString()

Methods inherited from class java.lang.Object

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

Method Details

alwaysTrue

public static FilterExpression alwaysTrue()

of

public static FilterExpression of(String expression)

evaluate

public boolean evaluate(AttributesMap attributes)

Evaluates the filter

Parameters:

attributes - Attributes to evaluate against

toString

public String toString()

Overrides:

toString in class Object

isValid

public static boolean isValid(String expression)

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object