net.kwfgrid.gwes
Class ConditionChecker

java.lang.Object
  net.kwfgrid.gwes.ConditionChecker

public class ConditionChecker
extends Object

This class is used to check conditions expressed in the XPath syntax.

Version:

$Id: ConditionChecker.java 1433 2010-11-29 18:06:07Z hoheisel $

Author:

Andreas Hoheisel (www.andreas-hoheisel.de)

Field Summary

static int	CONDITION_FALSE_DYNAMIC
static int	CONDITION_FALSE_STATIC
static int	CONDITION_TRUE

Constructor Summary

ConditionChecker()
Constructor for the condition checker.

Method Summary

boolean	check(String xpathExpression, org.jaxen.NamespaceContext nsContext)
int	check(TransitionOccurrence to) Check a set of conditions.
void	setContext(org.jdom.Document context) Set the evaluation context for conditions.

Methods inherited from class java.lang.Object

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

Field Detail

CONDITION_TRUE

public static final int CONDITION_TRUE

See Also:

Constant Field Values

CONDITION_FALSE_STATIC

public static final int CONDITION_FALSE_STATIC

See Also:

Constant Field Values

CONDITION_FALSE_DYNAMIC

public static final int CONDITION_FALSE_DYNAMIC

See Also:

Constant Field Values

Constructor Detail

ConditionChecker

public ConditionChecker()

Constructor for the condition checker.

Parameters:

workflow - The workflow context of the condition.

transition - The parent transition.

Method Detail

setContext

public void setContext(org.jdom.Document context)

Set the evaluation context for conditions.

Parameters:

context - Context as JDOM Document.

check

public int check(TransitionOccurrence to)
          throws net.kwfgrid.gworkflowdl.structure.WorkflowFormatException

Check a set of conditions. Variables (e.g. $input/) that are expanded by the corresponding context XPath (e.g. /gwdl:data/input).

Parameters:

to - The transition occurrence that contains the conditios to check.

Returns:

CONDITION_TRUE if all conditions evaluate to true and CONDITION_FALSE_STATIC if a least one static condition evaluates to false. CONDITION_FALSE_DYNAMIC if condition is false just because of time-depend conditions that may change in future.

Throws:

net.kwfgrid.gworkflowdl.structure.WorkflowFormatException - If the syntax of the condition is wrong.

check

public boolean check(String xpathExpression,
                     org.jaxen.NamespaceContext nsContext)
              throws org.jaxen.JaxenException

Throws:

org.jaxen.JaxenException