Java Reference
In-Depth Information
returns the activities that have no predecessors, i.e. those to be executed
The constructor receives a org.w3c.dom.Element object that contains the
parsed description of a business process. It invokes recursively the other
classes to build a representation of the process. The method toXML() does
the reverse job: it generates the DOM representation of a process.
package ProcessDefinition;
import org.w3c.dom.*;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.Collection;
import java.util.Vector;
public class WfProcessDefinition {
static final String TAG # "WORKFLOW";
String id; // attribute id
String name; // attribute name
String description; // attribute description
String version; // attribute version
String category; // attribute category
Hashtable activities # new Hashtable();
// the activities of the process
Hashtable participants # new Hashtable();
// the process' participants
// getter methods for the attributes
public String getName() { return name; }
public String getDescription() { return description; }
public String getVersion() { return version; }
public String getCategory() { return category; }
// returns the initial activities
// i.e. those without a predecessor
public Collection initialActivities(){
Iterator it # activities.values().iterator();
Vector result # new Vector();
while (it.hasNext()){
WfActivityDefinition activity #
if (activity.isStart())
} return result;
// return a collection of all the definitions contained
// in a file
public static Collection loadDefinitions(Document doc){
NodeList processes # doc.getElementsByTagName("WORKFLOW");
Collection definitions # new Vector();
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