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Using Expression Language to Extend Security Capabilities


Notes:

Using Expression Language to Extend Security Capabilities

You can use expressions to resolve properties such as Rendered, ReadOnly, and Disabled at run time. These expressions can be referenced out of your own beans, as in the first example in the slide. The JSF-Security extension to the Expression Language (second example) gives convenient, direct access to security information, whereas the built-in global security expressions (third example) enable such access without the need to use an extension.