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The Multi-Choice workflow pattern defines multiple possible paths for the workflow of which one or more are chosen. It is a generalization of the Parallel Split and Exclusive Choice workflow patterns.

Incoming nodes: 1 Outgoing nodes: 2..*

This example displays how you can use ezcWorkflowNodeMultiChoice to activate one or more branches depending on the input. Note that an input value of 5 will start only branch 1 while an input value of 11 or more will start both branch1 and branch2.

1.  <?php
2.  $workflow = new ezcWorkflow( 'Test' );
3.  
4.  // wait for input into the workflow variable value.
5.  $input = new ezcWorkflowNodeInput( array( 'value' => new ezcWorkflowConditionIsInt ) );
6.  $workflow->startNode->addOutNode( $input );
7.  
8.  // create the exclusive choice branching node
9.  $choice = new ezcWorkflowNodeMultiChoice;
10.  $intput->addOutNode( $choice );
11.  
12.  $branch1 = ....; // create nodes for the first branch of execution here..
13.  $branch2 = ....; // create nodes for the second branch of execution here..
14.  
15.  // add the outnodes and set the conditions on the exclusive choice
16.  $choice->addConditionalOutNode( new ezcWorkflowConditionVariable( 'value',
17.                                                                   new ezcWorkflowConditionGreaterThan( 1 ) ),
18.                                 $branch1 );
19.  $choice->addConditionalOutNode( new ezcWorkflowConditionVariable( 'value',
20.                                                                   new ezcWorkflowConditionGreaterThan( 10 ) ),
21.                                 $branch2 );
22.  
23.  // Merge the two branches together and continue execution.
24.  $merge = new ezcWorkflowNodeSynchronizingMerge();
25.  $merge->addInNode( $branch1 );
26.  $merge->addInNode( $branch2 );
27.  $merge->addOutNode( $workflow->endNode );
28.  ?>