public FlowExecutor build() {
        return webflowProperties.getSession().isStorage()
            ? buildFlowExecutorViaServerSessionBindingExecution()
            : buildFlowExecutorViaClientFlowExecution();
    }
Build flow executor.

@return the flow executor
core/cas-server-core-webflow-api/src/main/java/org/apereo/cas/web/flow/executor/WebflowExecutorFactory.java