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POActiviti custom variable type issue
 

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  1. POActiviti custom variable type issue
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    <p>In Activiti all complex objects are serialized and stored in database using Java serialization. I wish to override this behavior for my custom types and store the objects as JSON. This shall help me to have more control over the persisted object.</p> <p>I have created my custom VariableType to do this. Below is the snippet</p> <pre class="lang-java prettyprint-override"><code>public class CustomVariableType extends ByteArrayType{ // overrided all the needed method. } </code></pre> <p>These types are configured in activiti configuration impl as below:</p> <pre class="lang-java prettyprint-override"><code>public class WorklistConfigurationService { private ProcessEngineConfigurationImpl processEngineConfigurationImpl; private List&lt;CustomVariableType&gt; customVarsTypes; public void init(){ logger.debug("inside init"); for(VOVariableType varType : voVars){ logger.debug("adding type {}", varType.getTypeName()); processEngineConfigurationImpl.getVariableTypes().addType(varType, 0); } } // getter and setters... } </code></pre> <p>Below is how I am injecting values to above in Spring</p> <pre class="lang-xml prettyprint-override"><code>&lt;bean id="processEngineConfiguration" class="org.activiti.spring.SpringProcessEngineConfiguration"&gt; &lt;property name="dataSource" ref="dataSource" /&gt; &lt;/bean&gt; &lt;bean id="worklistConfigurationService" class="...WorklistConfigurationService" init-method="init"&gt; &lt;property name="customVarTypes"&gt; &lt;list&gt; &lt;bean id="var1" class="...CustomVariableType"&gt; &lt;constructor-arg type="java.lang.String" value="custom" /&gt; &lt;constructor-arg type="java.lang.Class" value="..CustomType" /&gt; &lt;/bean&gt; &lt;/list&gt; &lt;/property&gt; &lt;property name="processEngineConfigurationImpl" ref="processEngineConfiguration" /&gt; &lt;/bean&gt; </code></pre> <p>But the new serialization mechanism is never used by activiti engine. Instead it is always default serialization which is used. Can someone help in getting this resolved.</p>
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    1. USwilx
    1. USajjain
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    1. CODid you also override the `isAbleToStore` method in `CustomVariableType`? And what is a voVar?
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      1. USmatts
    2. CO@matts I was just trying to hide my business class names. renamed voVars to custom types. Yes I have overrided isAbleToStore method.
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      1. USajjain
    3. COI do not know how but the same piece of code worked. My bad, can someone close this issue. BTW I am planning to share this on GIST so that this can be referred. This is one of the least documented but very useful feature. Shall update here once m done with GIST. Moderator please lemme know if sharing code links is not allowed.
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      1. USajjain
 

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