org.smartcomps.twister.engine.priv.expression
Interface ExpressionProcessor

All Known Implementing Classes:

BPELExpressionProcessorImpl

public interface ExpressionProcessor

Evaluates an expression against Twister XML database and returns the appropriate value.

Method Summary

boolean	evaluateAsBoolean(org.smartcomps.twister.engine.priv.core.dynamic.ProcessInstance instance, java.lang.String expression)
java.util.Date	evaluateAsDate(org.smartcomps.twister.engine.priv.core.dynamic.ProcessInstance instance, java.lang.String expression)
java.lang.String	evaluateAsString(org.smartcomps.twister.engine.priv.core.dynamic.ProcessInstance instance, java.lang.String expression)
java.util.Date	evaluateDurationAsDate(org.smartcomps.twister.engine.priv.core.dynamic.ProcessInstance instance, java.lang.String expression) Evaluates an expression resulting in a duration value and adds this duration to now to obtain a new date.

Method Detail

evaluateAsBoolean

public boolean evaluateAsBoolean(org.smartcomps.twister.engine.priv.core.dynamic.ProcessInstance instance,
                                 java.lang.String expression)
                          throws XPathEvaluationException

XPathEvaluationException

evaluateAsDate

public java.util.Date evaluateAsDate(org.smartcomps.twister.engine.priv.core.dynamic.ProcessInstance instance,
                                     java.lang.String expression)
                              throws XPathEvaluationException

XPathEvaluationException

evaluateDurationAsDate

public java.util.Date evaluateDurationAsDate(org.smartcomps.twister.engine.priv.core.dynamic.ProcessInstance instance,
                                             java.lang.String expression)
                                      throws XPathEvaluationException

Evaluates an expression resulting in a duration value and adds this duration to now to obtain a new date.

Parameters:

instance -

expression -

Returns:

Date

Throws:

XPathEvaluationException

evaluateAsString

public java.lang.String evaluateAsString(org.smartcomps.twister.engine.priv.core.dynamic.ProcessInstance instance,
                                         java.lang.String expression)
                                  throws XPathEvaluationException

XPathEvaluationException