Examples of org.jbpm.pvm.internal.wire.xml.WireParser

org.jbpm.pvm.internal.wire.xml.WireParser
parses object wiring xml and constructs a WireDefinition.
To learn the full XML syntax, check out the xsd docs
- To describe an object:
  - <object .../>: see {@link ObjectBinding}
- To describe basic types:
  - <boolean .../>, <true /> and <false/>: see {@link BooleanBinding}
  - <byte .../>: see {@link ByteBinding}
  - <char .../>: see {@link CharBinding}
  - <double .../>: see {@link DoubleBinding}
  - <float .../>: see {@link FloatBinding}
  - <int .../>: see {@link IntBinding}
  - <string .../>: see {@link StringBinding}
- To describe collections:
  - <map .../>: see {@link MapBinding}
  - <set .../>: see {@link SetBinding}
  - <list .../>: see {@link ListBinding}
- Others:
  - <class .../>: see {@link ClassBinding}
  - <ref .../>: see {@link RefBinding}
  - <null .../>: see {@link NullBinding}
Bindings

The defaults bindings for the Wiring XML are divided in two categories:
- Descriptors, registered with the {@link #CATEGORY_DESCRIPTOR} category
- Operations, registered with the {@link #CATEGORY_OPERATION} category
Once a parser is created, bindings can be added, overwritten and removed to customize that parser instance.

Describing arguments

An ArgDescriptor is defined by a <arg> xml element.

This element can have an attribute "type", which specifies name of the argument's type.

This element contains one child element that defines a {@link Descriptor}. This descriptor specifies the value to give to the argument.

Example
Consider the following class:
```
 public class Hello { public static String sayHello(String name) { return "Hello " + name + " !"; } }
```
The following Xml declaration will create an object 's' of class 'String' (see {@link ObjectDescriptor}). This object is created by invoking Hello.sayHello with the value world as a parameter.
```
 <objects> <object name="s" class='Hello' method='sayHello'> <arg> <string value='world' /> </arg> </object> </objects>
```
The created object 's' will be a String, containing "Hello world !".
Initialization

The initialization method can be defined with the init attribute. For more details on how initialization works, see section 'Initialization' of {@link WireContext}.
The init attribute can have these values:
- lazy: for lazy creation and delayed initialization
- required: for lazy creation and immediate initialization
- eager: for eager creation and delayed initialization
- immediate: for eager creation and immediate initialization
@author Tom Baeyens @author Guillaume Porcher (documentation)

  protected String[] readContextNames = null;
  protected String writeContextName;
  
  public static synchronized ScriptManager getDefaultScriptManager() {
    if (defaultScriptManager==null) {
      WireDefinition wireDefinition = (WireDefinition) new WireParser()
        .createParse()
        .setString(
          "<objects>" +
          "  <script-manager default-expression-language='juel'" +
          "                  default-script-language='beanshell'>" +

View Full Code Here

    Element parametersElement = XmlUtil.element(element, "parameters");
    List<Element> paramElements = XmlUtil.elements(parametersElement);
    if (!paramElements.isEmpty()) {
      List<Descriptor> parametersDescriptor = new ArrayList<Descriptor>();
      for (Element paramElement: paramElements) {
        WireParser wireParser = WireParser.getInstance();
        Descriptor paramDescriptor = (Descriptor) wireParser.parseElement(paramElement, parse, WireParser.CATEGORY_DESCRIPTOR);
        parametersDescriptor.add(paramDescriptor);
      }


      ListDescriptor parametersListDescriptor = new ListDescriptor();
      parametersListDescriptor.setValueDescriptors(parametersDescriptor);

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  /** looks up the default script manager used for non persistent purposes where 
   * no environment is installed. */
  public static synchronized ScriptManager getDefaultScriptManager() {
    if (defaultScriptManager==null) {
      WireDefinition wireDefinition = (WireDefinition) new WireParser()
        .createParse()
        .setString(
          "<objects>" +
          "  <script-manager default-expression-language='juel'" +
          "                  default-script-language='beanshell'>" +

View Full Code Here

    Element parametersElement = XmlUtil.element(element, "parameters");
    List<Element> paramElements = XmlUtil.elements(parametersElement);
    if (!paramElements.isEmpty()) {
      List<Descriptor> parametersDescriptor = new ArrayList<Descriptor>();
      for (Element paramElement: paramElements) {
        WireParser wireParser = WireParser.getInstance();
        Descriptor paramDescriptor = (Descriptor) wireParser.parseElement(paramElement, parse, WireParser.CATEGORY_DESCRIPTOR);
        parametersDescriptor.add(paramDescriptor);
      }


      ListDescriptor parametersListDescriptor = new ListDescriptor();
      parametersListDescriptor.setValueDescriptors(parametersDescriptor);

View Full Code Here

  
  private void parseEjbInvocation(JavaActivity javaActivity, Element element, Parse parse, JpdlParser parser) {
    javaActivity.setJndiName(XmlUtil.attribute(element, "ejb-jndi-name"));
    javaActivity.setMethodName(XmlUtil.attribute(element, "method"));
    List<Element> argElements = XmlUtil.elements(element, "arg");
    List<ArgDescriptor> argDescriptors = new WireParser().parseArgs(argElements, parse);
    javaActivity.setArgDescriptors(argDescriptors);
  }

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Related Classes of org.jbpm.pvm.internal.wire.xml.WireParser

org.jbpm.jpdl.internal.activity.HqlBinding

org.jbpm.jpdl.internal.activity.JavaBinding

org.jbpm.pvm.internal.script.ScriptManager

org.jbpm.pvm.internal.wire.Descriptor

org.jbpm.pvm.internal.wire.descriptor.AbstractDescriptor

org.jbpm.pvm.internal.wire.WireDefinition

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Examples of org.jbpm.pvm.internal.wire.xml.WireParser

Bindings

Describing arguments

Example

Initialization

Related Classes of org.jbpm.pvm.internal.wire.xml.WireParser