Field Detail

• SUPPORTED_DATA_MODEL

  public static final String SUPPORTED_DATA_MODEL

  See Also:

  Constant Field Values

• scriptPreProcessor

  protected static final GroovyExtendableScriptCache.ScriptPreProcessor scriptPreProcessor

Constructor Detail

• GroovyEvaluator

  public GroovyEvaluator()

• GroovyEvaluator

  public GroovyEvaluator(boolean useInitialScriptAsBaseScript)

Method Detail

• newScriptCache

  protected GroovyExtendableScriptCache newScriptCache()

  Overridable factory method to create the GroovyExtendableScriptCache for this GroovyEvaluator.

  The default implementation configures the scriptCache to use the GroovyEvaluator scriptPreProcessor and the GroovySCXMLScript as script base class.

• getScript

  protected groovy.lang.Script getScript(GroovyContext groovyContext,
                             String scriptBaseClassName,
                             String scriptSource)

• clearCache

  public void clearCache()

• getScriptPreProcessor

  public GroovyExtendableScriptCache.ScriptPreProcessor getScriptPreProcessor()

• getSupportedDatamodel

  public String getSupportedDatamodel()

  Description copied from interface: Evaluator
  Get the datamodel type supported by this Evaluator

  Specified by:

  getSupportedDatamodel in interface Evaluator

  Returns:

  The supported datamodel type

• eval

  public Object eval(Context ctx,
            String expr)
              throws SCXMLExpressionException

  Evaluate an expression.

  Specified by:

  eval in interface Evaluator

  Parameters:

  ctx - variable context

  expr - expression

  Returns:

  a result of the evaluation

  Throws:

  SCXMLExpressionException - For a malformed expression

  See Also:

  Evaluator.eval(Context, String)

• evalCond

  public Boolean evalCond(Context ctx,
                 String expr)
                   throws SCXMLExpressionException

  Description copied from interface: Evaluator
  Evaluate a condition. Manifests as "cond" attributes of <transition>, <if> and <elseif> elements.

  Specified by:

  evalCond in interface Evaluator

  Parameters:

  ctx - variable context

  expr - expression

  Returns:

  true/false

  Throws:

  SCXMLExpressionException - A malformed expression exception

  See Also:

  Evaluator.evalCond(Context, String)

• evalLocation

  public Object evalLocation(Context ctx,
                    String expr)
                      throws SCXMLExpressionException

  Description copied from interface: Evaluator
  Evaluate a location that returns a data assignable reference or list of references. Manifests as "location" attributes of <assign> element.

  Specified by:

  evalLocation in interface Evaluator

  Parameters:

  ctx - variable context

  expr - expression

  Returns:

  The location result.

  Throws:

  SCXMLExpressionException - A malformed expression exception

  See Also:

  Evaluator.evalLocation(Context, String)

• evalAssign

  public void evalAssign(Context ctx,
                String location,
                Object data,
                Evaluator.AssignType type,
                String attr)
                  throws SCXMLExpressionException

  Description copied from interface: Evaluator
  Assigns data to a location

  Specified by:

  evalAssign in interface Evaluator

  Parameters:

  ctx - variable context

  location - location expression

  data - the data to assign.

  type - the type of assignment to perform, null assumes Evaluator.AssignType.REPLACE_CHILDREN

  attr - the name of the attribute to add when using type Evaluator.AssignType.ADD_ATTRIBUTE

  Throws:

  SCXMLExpressionException - A malformed expression exception

  See Also:

  Evaluator.evalAssign(Context, String, Object, AssignType, String)

• evalScript

  public Object evalScript(Context ctx,
                  String scriptSource)
                    throws SCXMLExpressionException

  Description copied from interface: Evaluator
  Evaluate a script. Manifests as <script> element.

  Specified by:

  evalScript in interface Evaluator

  Parameters:

  ctx - variable context

  scriptSource - The script

  Returns:

  The result of the script execution.

  Throws:

  SCXMLExpressionException - A malformed script

  See Also:

  Evaluator.evalScript(Context, String)

• getGroovyClassLoader

  protected ClassLoader getGroovyClassLoader()

• newContext

  public Context newContext(Context parent)

  Create a new child context.

  Specified by:

  newContext in interface Evaluator

  Parameters:

  parent - parent context

  Returns:

  new child context

  See Also:

  Evaluator.newContext(Context)

• getEffectiveContext

  protected GroovyContext getEffectiveContext(GroovyContext nodeCtx)

  Create a new context which is the summation of contexts from the current state to document root, child has priority over parent in scoping rules.

  Parameters:

  nodeCtx - The GroovyContext for this state.

  Returns:

  The effective GroovyContext for the path leading up to document root.