| Web cache invalidation APIs

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The wwpro_api_invalidation package contains APIs which invalidate the cache of portlets in Web cache. Portlet developers should use these APIs when the content of their portlets change. For example, a call to invalidate the cache may be necessary in code that allows a user to customize a portlet. Portlet cache can be invalidated by specifying any of the following parameters: a provider ID both a user and provider ID a portlet ID both a user and portlet ID a portlet instance ID

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Provider API package | PDK PL/SQL API Reference - Home

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The PL/SQL API Reference is part of the Portal Developer Kit on Portal Studio