Package org.jeasy.rules.core

Class FastRule

java.lang.Object

org.jeasy.rules.core.FastRule

All Implemented Interfaces:

Comparable<Rule>, Rule

public abstract class FastRule
extends Object
implements Rule

Basic rule implementation class that provides common methods.

You can extend this class and override when(Facts) and then(Facts) to provide rule conditions and actions logic. This is very similar to BasicRule

Author:

Mahmoud Ben Hassine ([email protected])

Field Summary

Fields

Modifier and Type	Field	Description
protected String	description	Rule description.
protected String	name	Rule name.
protected int	priority	Rule priority.

Fields inherited from interface org.jeasy.rules.api.Rule

DEFAULT_DESCRIPTION, DEFAULT_NAME, DEFAULT_PRIORITY

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	FastRule(String name)
protected	FastRule(String name, String description, int priority)

Method Summary

Modifier and Type	Method	Description
final boolean	evaluate(Facts facts)	This method implements the rule's condition(s).
final void	execute(Facts facts)	This method implements the rule's action(s).
String	getDescription()	Getter for rule description.
String	getName()	Getter for rule name.
int	getPriority()	Getter for rule priority.
protected abstract void	then(Facts facts)
protected abstract boolean	when(Facts facts)

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Comparable

compareTo

Field Details

name

protected String name

Rule name.

description

protected String description

Rule description.

priority

protected int priority

Rule priority.

Constructor Details

FastRule

protected FastRule(String name,
 String description,
 int priority)

FastRule

protected FastRule(String name)

Method Details

when

protected abstract boolean when(Facts facts)

then

protected abstract void then(Facts facts)

evaluate

public final boolean evaluate(Facts facts)

Description copied from interface: Rule

This method implements the rule's condition(s). Implementations should handle any runtime exception and return true/false accordingly

Specified by:

evaluate in interface Rule

Returns:

true if the rule should be applied given the provided facts, false otherwise

execute

public final void execute(Facts facts)
                   throws Exception

Description copied from interface: Rule

This method implements the rule's action(s).

Specified by:

execute in interface Rule

Throws:

Exception - thrown if an exception occurs when performing action(s)

getName

public String getName()

Description copied from interface: Rule

Getter for rule name.

Specified by:

getName in interface Rule

Returns:

the rule name

getDescription

public String getDescription()

Description copied from interface: Rule

Getter for rule description.

Specified by:

getDescription in interface Rule

Returns:

rule description

getPriority

public int getPriority()

Description copied from interface: Rule

Getter for rule priority.

Specified by:

getPriority in interface Rule

Returns:

rule priority