Supplies a parameter to the current servlet bean.

<dsp:oparam name="param-name">



Identifies the parameter to set for the current servlet bean.


The value to assign this parameter.

Usage Notes

dsp:oparam (open parameter) takes the value supplied to it in a JSP and passes it to the current dsp:droplet tag. Each servlet bean maintains a set of open parameters which the servlet bean can set, service, and deliver as output to a JSP. For information about open parameters that are available for specific servlet beans, see Appendix B: ATG Servlet Beans.

See the How JSPs Handle Servlet Beans section in the Creating and Using ATG Servlet Beans chapter of the Platform Programming Guide.


<dsp:importbean bean="/atg/dynamo/droplet/Switch"/>

<dsp:valueof param=""/>:&nbsp;

<dsp:droplet name="Switch">
   <dsp:param name="value" param="person.hasCar"/>
   <dsp:oparam name="false">
      No vehicle
   <dsp:oparam name="true">
      Vehicle with capacity of <dsp:valueof param="person.carCapacity"/>

The Switch servlet bean evaluates the input parameter value and tests the Boolean result against the open parameters true and false. The servlet bean processes the matching open parameter.

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