com.github.kislayverma.rulette.engine.impl.trie

Class TrieBasedEvaluationEngine

java.lang.Object

com.github.kislayverma.rulette.engine.impl.trie.TrieBasedEvaluationEngine

All Implemented Interfaces:

IEvaluationEngine

public class TrieBasedEvaluationEngine
extends Object
implements IEvaluationEngine

This implementation of the IEvaluationEngine interface uses a Trie to store and locate rules efficiently. The higher priority inputs constitute the top level nodes and lower priority nodes are set as child nodes. The actual rule output value is found at the leaf nodes.

Author:

kislay.verma

Constructor Summary

Constructors

Constructor and Description
TrieBasedEvaluationEngine(RuleSystemMetaData metaData)
TrieBasedEvaluationEngine(RuleSystemMetaData metaData, List<Rule> rules)

Method Summary

Modifier and Type	Method and Description
void	addRule(Rule rule)
void	deleteRule(Rule rule)
List<Rule>	getAllApplicableRules(Map<String,String> inputMap)
List<Rule>	getAllRules()
Rule	getNextApplicableRule(Map<String,String> inputMap)
Rule	getRule(Map<String,String> inputMap)
Rule	getRule(String ruleId)

Methods inherited from class java.lang.Object

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

Constructor Detail

TrieBasedEvaluationEngine

public TrieBasedEvaluationEngine(RuleSystemMetaData metaData)
                          throws RuleConflictException

Throws:

RuleConflictException

TrieBasedEvaluationEngine

public TrieBasedEvaluationEngine(RuleSystemMetaData metaData,
                                 List<Rule> rules)
                          throws RuleConflictException

Throws:

RuleConflictException

Method Detail

getAllRules

public List<Rule> getAllRules()

Specified by:

getAllRules in interface IEvaluationEngine

getRule

public Rule getRule(String ruleId)

Specified by:

getRule in interface IEvaluationEngine

getRule

public Rule getRule(Map<String,String> inputMap)

Specified by:

getRule in interface IEvaluationEngine

getNextApplicableRule

public Rule getNextApplicableRule(Map<String,String> inputMap)

Specified by:

getNextApplicableRule in interface IEvaluationEngine

addRule

public void addRule(Rule rule)
             throws RuleConflictException

Specified by:

addRule in interface IEvaluationEngine

Throws:

RuleConflictException

deleteRule

public void deleteRule(Rule rule)

Specified by:

deleteRule in interface IEvaluationEngine

getAllApplicableRules

public List<Rule> getAllApplicableRules(Map<String,String> inputMap)

Specified by:

getAllApplicableRules in interface IEvaluationEngine