org.apache.tapestry5.internal.services

## Class MetaDataLocatorImpl

- java.lang.Object
- - org.apache.tapestry5.internal.services.MetaDataLocatorImpl

- All Implemented Interfaces:
    MetaDataLocator

      public class MetaDataLocatorImpl
      extends Object
      implements MetaDataLocator

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `MetaDataLocatorImpl(SymbolSource symbolSource, TypeCoercer typeCoercer, ComponentModelSource modelSource, Map<String,String> configuration)`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `<T> T` | `findMeta(String key, ComponentResources resources, Class<T> expectedType)` Searches for the value for the corresponding key.
    `<T> T` | `findMeta(String key, String pageName, Class<T> expectedType)` Searches for the value for the corresponding key for a particular page name (the page will not be loaded).
    `void` | `setupInvalidation(InvalidationEventHub invalidationEventHub)`

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### MetaDataLocatorImpl

          public MetaDataLocatorImpl(SymbolSource symbolSource,
                             TypeCoercer typeCoercer,
                             ComponentModelSource modelSource,
                             Map<String,String> configuration)

  - ### Method Detail

    - #### setupInvalidation

          @PostInjection
          public void setupInvalidation(@ComponentClasses
                                             InvalidationEventHub invalidationEventHub)

    - #### findMeta

          public <T> T findMeta(String key,
                       ComponentResources resources,
                       Class<T> expectedType)

      Description copied from interface: `MetaDataLocator`
      Searches for the value for the corresponding key. The value, if located, will have symbols expanded, and will be type coerced to the desired type.
      Specified by:
        `findMeta` in interface `MetaDataLocator`
      Parameters:
        `key` - the key used to locate the meta data (case insensitive)
        `resources` - the resources of the initial component used in the search
      Returns:
        the value if found (in the component, the component's container, etc. or via a folder default)

    - #### findMeta

          public <T> T findMeta(String key,
                       String pageName,
                       Class<T> expectedType)

      Description copied from interface: `MetaDataLocator`
      Searches for the value for the corresponding key for a particular page name (the page will not be loaded). The value, if located, will have symbols expanded, and will be type coerced to the desired type.
      Specified by:
        `findMeta` in interface `MetaDataLocator`
      Parameters:
        `key` - the key used to locate the meta data (case insensitive)
        `pageName` - the name of the page to search
      Returns:
        the value if found

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