Oracle® Fusion Middleware User's Guide for Oracle Portal 11g Release 1 (11.1.1) Part Number E10235-01 |
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Portlet caching options are useful for speeding up page response times. This section describes portlet caching options and how to apply them. It includes the following sub-sections:
To change how a portlet is cached:
Go to the page where the portlet instance is located.
For information on locating a page, see Section 9.1, "Locating Pages in Oracle Portal".
Switch to Edit mode.
Click the Actions icon (Figure 22-1) next to the portlet instance.
On Actions page, click the Edit Portlet Instance link.
In the Portlet Caching section, specify how this portlet instance is cached.
For more detail, see Section 22.3.2, "Portlet Caching Options".
In the Portlet Caching Level section, specify a caching level for this portlet instance.
For more detail and a description of each caching level, see Section 22.3.3, "Portlet Caching Level Options".
Click OK to save your changes and return to the page.
Table 22-2 lists and describes Portlet Caching options on the Edit Portlet Instance page:
Rely on Portlet to Implement Caching
Force Portlet to be Cached for [ ] Minutes
Table 22-2 Portlet Caching Options
Table 22-3 lists and describes Portlet Caching Level options on the Edit Portlet Instance page:
The Portlet Caching Level option enables you to modify the caching level in either the caching policy defined by the portlet author, or the forced caching policy (see Force Portlet to be Cached for [ ] Minutes in Table 22-2, "Portlet Caching Options").
This option does not force the portlet to be cached. This option controls whether user or system level information is sent in the portlet request.
The Portlet Caching Level option is not available when:
The portlet itself specifies system-level caching. If this is the case, the portlet is always cached at the system-level.
The page is cached with the option Cache Page Definition and Content at System Level for [ ] Minutes. When the page is cached at this level, portlet instances on the page can display only public data.
Note:
To ensure that WSRP portlets operate correctly, we recommend that you place WSRP portlets that are cached at the user-level, on user-level cached pages, and place WSRP portlets that are cached at the system-level, on system-level cached pages.Table 22-3 Portlet Caching Level Options