## Uses of Interface
org.apache.tiles.request.attribute.Addable

- Packages that use Addable
  Package | Description
  --- | ---
  org.apache.tiles.request |
  org.apache.tiles.request.attribute | Methods to get, set and remove attributes from different sources (like HTTP requests or sessions).
  org.apache.tiles.request.freemarker.extractor | Extractors to get information from Freemarker objects.
  org.apache.tiles.request.jsp.extractor | Extractors to get scopes from `PageContext`.
  org.apache.tiles.request.servlet | Tiles request support for Servlet technology.
  org.apache.tiles.request.servlet.extractor | Extractors to get attributes and other info from servlet requests and contexts.
  org.apache.tiles.request.velocity.extractor | Extractors to get info about Velocity-specific objects.

- - ### Uses of Addable in org.apache.tiles.request

    Methods in org.apache.tiles.request that return Addable
    Modifier and Type | Method and Description
    --- | ---
    `Addable<String>` | Request.`getResponseHeaders()` Return an Addable object that can be used to write headers to the response.
    `Addable<String>` | DispatchRequestWrapper.`getResponseHeaders()` Return an Addable object that can be used to write headers to the response.

  - ### Uses of Addable in org.apache.tiles.request.attribute

    Subinterfaces of Addable in org.apache.tiles.request.attribute
    Modifier and Type | Interface and Description
    --- | ---
    `interface` | `AttributeExtractor` Allows to get, put and remove Object-type attributes.
    `interface` | `EnumeratedValuesExtractor` Allows to get values from multi-valued attributes.
    `interface` | `HasAddableKeys<V>` Allows to get and set attributes.

  - ### Uses of Addable in org.apache.tiles.request.freemarker.extractor

    Classes in org.apache.tiles.request.freemarker.extractor that implement Addable
    Modifier and Type | Class and Description
    --- | ---
    `class` | `EnvironmentScopeExtractor` Extract attributes from `Environment` objects as a scope.

  - ### Uses of Addable in org.apache.tiles.request.jsp.extractor

    Classes in org.apache.tiles.request.jsp.extractor that implement Addable
    Modifier and Type | Class and Description
    --- | ---
    `class` | `ScopeExtractor` Extracts attributes from a numbered scope from `JspContext`.

  - ### Uses of Addable in org.apache.tiles.request.servlet

    Methods in org.apache.tiles.request.servlet that return Addable
    Modifier and Type | Method and Description
    --- | ---
    `Addable<String>` | ServletRequest.`getResponseHeaders()` Return an Addable object that can be used to write headers to the response.

  - ### Uses of Addable in org.apache.tiles.request.servlet.extractor

    Classes in org.apache.tiles.request.servlet.extractor that implement Addable
    Modifier and Type | Class and Description
    --- | ---
    `class` | `ApplicationScopeExtractor` Extract attributes from application scope.
    `class` | `HeaderExtractor` Extract header values from an HTTP request.
    `class` | `RequestScopeExtractor` Extracts attributes from request scope.
    `class` | `SessionScopeExtractor` Extract attributes from session scope.

  - ### Uses of Addable in org.apache.tiles.request.velocity.extractor

    Classes in org.apache.tiles.request.velocity.extractor that implement Addable
    Modifier and Type | Class and Description
    --- | ---
    `class` | `VelocityScopeExtractor` Extracts attributes from Velocity context..

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