org.kuali.rice.kew.rule
Class KRAMetaRuleEngine

java.lang.Object
  org.kuali.rice.kew.rule.KRAMetaRuleEngine

public class KRAMetaRuleEngine
extends Object

Implements the KRA meta-rule processing and state machine engine

Author:

Kuali Rice Team (rice.collab@kuali.org)

Constructor Summary

KRAMetaRuleEngine(String expression)

Method Summary

int	getCurStatement()
String	getExpression()
String[]	getStatements()
boolean	isDone()
RuleExpressionResult	processSingleStatement(RouteContext context) Processes a single statement and returns the result
void	setCurStatement(int statementNo)

Methods inherited from class java.lang.Object

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

Constructor Detail

KRAMetaRuleEngine

public KRAMetaRuleEngine(String expression)
                  throws ParseException

Throws:

ParseException

Method Detail

getExpression

public String getExpression()

Returns:

the expression the engine was initialized with

getStatements

public String[] getStatements()

Returns:

the parsed statements

getCurStatement

public int getCurStatement()

Returns:

the next statement the engine will process

setCurStatement

public void setCurStatement(int statementNo)

Parameters:

statementNo - the statement index at which to resume processing

isDone

public boolean isDone()

Returns:

whether we are done processing

processSingleStatement

public RuleExpressionResult processSingleStatement(RouteContext context)
                                            throws ParseException

Processes a single statement and returns the result

Parameters:

context - the current RouteContext

Returns:

the expression result that resulted from the evaluation of a single statement

Throws:

ParseException - if the statement could not be parsed