Livesite 3.0 external component for search

I have a search component which displays a search form to the user. It has a submit button which I want to link with an external java class. The java class has jdbc code which searches the database and returns the search results. Those results are to be displayed in the same component. My problem is:
1. How do I link my submit button to call an external java class?
2. How do I display the response in the same component?

If anyone has implemented a thing like this before please do share the component code.

Also, is communication between different components possible? If so, how?

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Comments

AlexC

You would need a component controller, which gets executed when a submit is done to a component. A controller is just an external that also has the ability to redirect or do nothing. In this controller you can process the submit and either handle it or redirect or do whatever you need.

Take a look at the Login.component, it does just this, one component that displays both login form and already logged in message. You can use request parameters to communicate between controller and externals.

Samir_Friend

You would need a component controller, which gets executed when a submit is done to a component. A controller is just an external that also has the ability to redirect or do nothing. In this controller you can process the submit and either handle it or redirect or do whatever you need.

Take a look at the Login.component, it does just this, one component that displays both login form and already logged in message. You can use request parameters to communicate between controller and externals.

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Thanks Alex, I looked into the login component but I could not find the actual directory path where the java file and the class file is to be kept for the external component class. Does the external java class have to be registered first to be used within a livesite component, if so, how?

It would be great if you could share a stepwise procedure for making and using an external class within a Livesite component.

AlexC

If you have a login component that uses ExternalIfc then it is a 2.2.1 component not a 3.0. In 3.0+ we do not have an external interface or base class.

Samir_Friend

If you have a login component that uses ExternalIfc then it is a 2.2.1 component not a 3.0. In 3.0+ we do not have an external interface or base class.

I have now moved onto 2.2.1 and I have created an external java class which extends the BaseExternal. I just need to know where should I keep my java class now(Livesite dir structure path) and how should I compile it. The procedure specified in the ls.221.dg.pdf is not very clear to me. Hope you could help me with the procedure I need to follow.

tec_iwov

you can package up your class in a jar then place it in the content_center's lib dir /httpd/webapps/content_center/WEB-INF/lib. you will also need to place it in the runtime /web/WEB-INF/lib

Samir_Friend

you can package up your class in a jar then place it in the content_center's lib dir /httpd/webapps/content_center/WEB-INF/lib. you will also need to place it in the runtime /web/WEB-INF/lib

Hi,
I kept my external Java class in the location:
{IWHome}\local\config\lib\content_center\customer_src\src
and then run the make_toolkit.ipl in the customer_src directory which gave me a .class file in the customer_out directory in content_centre. I am now able to access the external file in a Livesite component. Thanks to all for your help.