Array Null Property

To read a property of a node (the prop can be String, String[], etc) - you can use the JCR API. If the prop is a String[], it will return the value. If the array is empty, this empty value is returned. To learn how to work with the JCR API, see:

http://helpx.adobe.com/experience-manager/using/programmatically-accessing-cq-content-using.html

smacdonald2008 wrote...

Here is more information on this subject. Lets assume that we have this property that is a String array:

As you can see -- testprop is empty and a String[]. To read this value - you use the JCR API and the following code:

// Retrieve content 
  Node node = root.getNode("adobe/cq"); 
  
  Property references = node.getProperty("testprop");  
  Value[] values = references.getValues();
  String myVal = values[0].getString();     

Here is a screenshot of debugging the code -- look at the value.

 

 

Hi,

Thanks for your reply.

I have tried with the below code

Node n=adminSession.getNode("/content/xxx/tra/jcr:content/parsys/columns/1/blockcontent_1");
    Property prop=n.getProperty("area");
    Value[] val=prop.getValues();
    String str=val[0].getString();

The above code is works once the property has a value.

else

its thows an Exception ArrayIndexOutOfBoundsException: 0

Could you please help me to go ahead

Thanks

mike

You should check the length of the val array before reading properties from it. In this case, it would seem to be an empty array, so reading the 0 index produces that ArrayIndexOutOfBoundsException.