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POCheck if subflow has input
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  1. POCheck if subflow has input
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    copied!<p>I have Flow which is calling a subflow with a not required input variable. How can I check in the subflow if my subflow has got input?</p> <p>So this could be my flow:</p> <pre class="lang-xml prettyprint-override"><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;flow xmlns="http://www.springframework.org/schema/webflow" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation=" http://www.springframework.org/schema/webflow http://www.springframework.org/schema/webflow/spring-webflow-2.4.xsd "&gt; &lt;subflow-state id="withoutInput" subflow="ReportEinlesen" &gt; &lt;transition on="ende" to="ReportUebersichtAnzeigen" /&gt; &lt;/subflow-state&gt; &lt;decision-state id="somecondition"&gt; &lt;if test="some condition" then="withnput" else="ende" /&gt; &lt;/decision-state&gt; &lt;subflow-state id="withInput" subflow="ReportEinlesen" &gt; &lt;input name="Report" value="${Report.foo()}" /&gt; &lt;transition on="ende" to="ReportUebersichtAnzeigen" /&gt; &lt;/subflow-state&gt; &lt;end-state id="ende" /&gt; &lt;/flow&gt; </code></pre> <p>And this could be my subflow called ReportEinlesen:</p> <pre class="lang-xml prettyprint-override"><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;flow xmlns="http://www.springframework.org/schema/webflow" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation=" http://www.springframework.org/schema/webflow http://www.springframework.org/schema/webflow/spring-webflow-2.4.xsd "&gt; &lt;decision-state id="anothercondition"&gt; &lt;if test="has this subflow got input?" then="ShowYourInput" else="ende" /&gt; &lt;/decision-state&gt; &lt;view-state id="ShowYourInput" &gt; &lt;transition on="Seen" to="ende" /&gt; &lt;/view-state&gt; &lt;end-state id="ende" /&gt; &lt;/flow&gt; </code></pre>
 

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