public int getNumberOfOutputManagementVertices() {

		int retVal = 0;

		final Iterator<ManagementGroupVertex> it = this.groupVertices.iterator();
		while (it.hasNext()) {

			final ManagementGroupVertex groupVertex = it.next();
			if (groupVertex.isOutputVertex()) {
				retVal += groupVertex.getNumberOfGroupMembers();
			}
		}

		return retVal;
	}
public int getNumberOfOutputManagementVertices ( ) { int retVal = 0 ; final Iterator < ManagementGroupVertex > it = this . groupVertices . iterator ( ) ; while ( it . hasNext ( ) ) { final ManagementGroupVertex groupVertex = it . next ( ) ; if ( groupVertex . isOutputVertex ( ) ) { retVal += groupVertex . getNumberOfGroupMembers ( ) ; } } return retVal ; }
Returns the number of output management vertices in this stage, i.e. the number
of management vertices which are connected to vertices in a higher stage
or have no output channels.

@return the number of output vertices in this stage