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This annotation allows to activate beans based on expressions. Out-of-the-box simple conditions are supported. The values will be resolved from the environment via the default resolvers (see out-of-the-box environment-config options) or via a custom resolver ConfiguredValueResolver which allows to use any type of configuration-format. An easy way to configure it permanently is e.g. myfaces-extcdi.properties or for more dynamic use-cases, it's possible to use system-properties.

@ExpressionActivated("db==dev-db")
public class TestDataCreator
{
  //...
}

or

@ExpressionActivated("db!=prod-db;db==*")
public class TestDataCreator
{
  //...
}

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