jbpm 与 工作流模式 基本控制模式(三)
好像源代码功能有点问题./*
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*
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jbpm.jpdl.patterns;
import junit.framework.*;
import org.jbpm.graph.def.*;
import org.jbpm.graph.exe.*;
/**
* http://is.tm.tue.nl/research/patterns/download/swf/pat_5.swf
*
* <p>in jbpm every node has an implicit merge in front of it.
* so it's not necessary to use the merge node. in fact, i can
* not think of a situation where implicit merge nodeMap are not
* sufficient. for the sake of workflow patterns, we leave if in.
* jbpm supports merging of both alternative paths of execution
* and concurrent paths of execution.
* </p>
*
* <p>first the merge node is demonstrated exactly as in the pattern.
* then the implicit variant is demonstrated, then the merging of
* concurrent paths is demonstrated.
* </p>
*/
public class Wfp05SimpleMergeTest extends TestCase {
private static ProcessDefinition simpleMergeProcessDefinition = createSimpleMergeProcessDefinition();
public static ProcessDefinition createSimpleMergeProcessDefinition() {
ProcessDefinition pd = new ProcessDefinition(
new String[]{"start-state start",
"state a",
"state b",
"merge xor",
"state c"},
new String[]{"start --to a--> a",
"start --to b--> b",
"a --> xor",
"b --> xor",
"xor --> c"});
return pd;
}
public void testSimpleMergeScenario1() {
ProcessDefinition pd = simpleMergeProcessDefinition;
ProcessInstance pi = new ProcessInstance( pd );
pi.signal("to a");
Token root = pi.getRootToken();
assertSame( pd.getNode("a"), root.getNode() );
root.signal();
assertSame( pd.getNode("c"), root.getNode() );
}
public void testSimpleMergeScenario2() {
ProcessDefinition pd = simpleMergeProcessDefinition;
ProcessInstance pi = new ProcessInstance( pd );
pi.signal("to b");
Token root = pi.getRootToken();
assertSame( pd.getNode("b"), root.getNode() );
root.signal();
assertSame( pd.getNode("c"), root.getNode() );
}
private static ProcessDefinition implicitMergeProcessDefinition = createImplicitMergeProcessDefinition();
public static ProcessDefinition createImplicitMergeProcessDefinition() {
ProcessDefinition pd = new ProcessDefinition(
new String[]{"start-state start",
"state a",
"state b",
"state c"},
new String[]{"start --to a--> a",
"start --to b--> b",
"a --> c",
"b --> c"});
return pd;
}
public void testImplicitMergeScenario1() {
ProcessDefinition pd = implicitMergeProcessDefinition;
ProcessInstance pi = new ProcessInstance( implicitMergeProcessDefinition );
pi.signal("to a");
Token root = pi.getRootToken();
assertSame( pd.getNode("a"), root.getNode() );
root.signal();
assertSame( pd.getNode("c"), root.getNode() );
}
public void testImplicitMergeScenario2() {
ProcessDefinition pd = implicitMergeProcessDefinition;
ProcessInstance pi = new ProcessInstance( implicitMergeProcessDefinition );
pi.signal("to b");
Token root = pi.getRootToken();
assertSame( pd.getNode("b"), root.getNode() );
root.signal();
assertSame( pd.getNode("c"), root.getNode() );
}
}
createSimpleMergeProcessDefinition()
创建如下流程定义文件
<div class="code_title">xml 代码
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