void registerExecutionVertex(final ExecutionVertex vertex) {

		if (this.vertexMap.put(vertex.getID(), vertex) != null) {
			throw new IllegalStateException("There is already an execution vertex with ID " + vertex.getID()
				+ " registered");
		}
	}
void registerExecutionVertex ( final ExecutionVertex vertex ) { if ( this . vertexMap . put ( vertex . getID ( ) , vertex ) != null ) { throw new IllegalStateException ( "There is already an execution vertex with ID " + vertex . getID ( ) + " registered" ) ; } }
Registers an execution vertex with the execution graph.

@param vertex
the execution vertex to register