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## oracle.portal.provider.v2.render.http
Class BaseManagedRenderer

    java.lang.Object
      |
      +--oracle.portal.provider.v2.render.ManagedRenderer
            |
            +--oracle.portal.provider.v2.render.http.BaseManagedRenderer

All Implemented Interfaces:
  InitializableXMLObject, Validateable

Direct Known Subclasses:
  AbstractResourceRenderer, FileRenderer, JavaRenderer, URLEditRenderer, URLRenderer, WebServiceRenderer

public abstract class BaseManagedRenderer
extends ManagedRenderer
implements InitializableXMLObject, Validateable

BaseManagedRenderer is the JPDK's base implementation of the `ManagedRenderer` interface. BaseManagedRenderer maintains information about the page's content type (MIME type) and cache expiry time. These may be set via calls to the appropriate methods or declared at page level in `provider.xml` using the `<contentType>` and `<pageExpires>` tags.

BaseManagedRenderer also maintains a reference to its parent `RenderManager` object so that page level attributes can be defaulted at `RenderManager` level. Implementations needing to set HTTP headers other than content type and page expiry should subclass BaseManagedRenderer and override the `prepareResponse(PortletRenderRequest)` method, taking care to call `super.prepareResponse(pr)` as a first step.

Constructor Summary
`BaseManagedRenderer()`

Method Summary
`void` | `addParameter(java.lang.Object o)` Adds entries from a `NameValue` object to a parameter list stored by this `BaseManagedRenderer`.
`java.lang.String` | `getContentType()` Gets the default MIME type to be used as the content type for this renderer's pages.
`boolean` | `getGeneratesESI()` Returns a flag indicating whether or not ESI processing should be performed on the rendered output.
`void` | `postInitialize()` Performs the extra steps required to initialize and validate a BaseManagedRenderer object once its properties have been set with the appropriate accessor methods.
`void` | `preInitialize(java.lang.Object o)` Performs the steps required to initialize a BaseManagedRenderer object after it has been constructed.
`boolean` | `prepareResponse(PortletRenderRequest pr)` Sets default HTTP headers for the response.
`void` | `setContentType(java.lang.String contentType)` Sets the default MIME type to be used as the content type for this renderer's pages.
`void` | `setGeneratesESI(boolean generatesESI)` Sets a flag to indicate whether or not ESI processing should be performed on the rendered output.
`void` | `setGeneratesESI(java.lang.String generatesESI)` Sets a flag to indicate whether or not ESI processing should be performed on the rendered output.
`void` | `setPageExpires(int expires)` Sets the expiration time (in minutes) of the page cache.
`void` | `setPageExpires(java.lang.String expires)` Sets the expiration time (in minutes) of the page cache.
`void` | `setUseInvalidationCaching(boolean useInvalidation)` Sets a flag to indicate whether or not to use invalidation caching
`void` | `setUseInvalidationCaching(java.lang.String useInvalidation)` Sets a flag to indicate whether or not to use invalidation caching
`void` | `validate(java.lang.String context, ValidationError errors)` Validates the internal state of this `BaseManagedRenderer` instance.

Methods inherited from class oracle.portal.provider.v2.render.ManagedRenderer
`renderBody`

Methods inherited from class java.lang.Object
`equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### BaseManagedRenderer

    public BaseManagedRenderer()

Method Detail

### preInitialize

    public void preInitialize(java.lang.Object o)
                       throws NodeHandlerException

  Performs the steps required to initialize a BaseManagedRenderer object after it has been constructed.

  Specified by:
    `preInitialize` in interface `InitializableXMLObject`
  Parameters:
    `o` - the object that will become this object's parent
  Throws:
    `NodeHandlerException` - if an error occurs while initializing this object

### postInitialize

    public void postInitialize()
                        throws NodeHandlerException

  Performs the extra steps required to initialize and validate a BaseManagedRenderer object once its properties have been set with the appropriate accessor methods.

  Specified by:
    `postInitialize` in interface `InitializableXMLObject`
  Throws:
    `NodeHandlerException` - if not all properties have been set correctly

### addParameter

    public void addParameter(java.lang.Object o)
                      throws PortletException

  Adds entries from a `NameValue` object to a parameter list stored by this `BaseManagedRenderer`.

  Parameters:
    `o` - Object representing the name-value pair (a `NameValue`).
  Throws:
    `PortletException` - if the given Object is not a valid `NameValue`

### setContentType

    public void setContentType(java.lang.String contentType)

  Sets the default MIME type to be used as the content type for this renderer's pages.

  Parameters:
    `contentType` - MIME type to be used as the content type for this renderer's pages.

### getContentType

    public java.lang.String getContentType()

  Gets the default MIME type to be used as the content type for this renderer's pages. If a content type hasn't been set explicitly on this `BaseManagedRenderer`, then the value returned by calling the `RenderManager.getContentType()` method on the parent `RenderManager` is returned.

  Specified by:
    `getContentType` in class `ManagedRenderer`
  Returns:
    MIME type to be used as the content type for this renderer's pages.

### setPageExpires

    public void setPageExpires(int expires)

  Sets the expiration time (in minutes) of the page cache.

  Parameters:
    `expires` - the number of minutes a page should be cached by the Portal.

### setPageExpires

    public void setPageExpires(java.lang.String expires)

  Sets the expiration time (in minutes) of the page cache.

  Parameters:
    `expires` - String representation of the integer number of minutes a page should be cached by the Portal.

### setUseInvalidationCaching

    public void setUseInvalidationCaching(boolean useInvalidation)

  Sets a flag to indicate whether or not to use invalidation caching

  Parameters:
    `useInvalidation` - if true use invalidation caching, otherwise don't

### setUseInvalidationCaching

    public void setUseInvalidationCaching(java.lang.String useInvalidation)

  Sets a flag to indicate whether or not to use invalidation caching

  Parameters:
    `useInvalidation` - if true use invalidation caching, otherwise don't

### getGeneratesESI

    public boolean getGeneratesESI()

  Returns a flag indicating whether or not ESI processing should be performed on the rendered output.

  Returns:
    boolean - true if ESI processing should be performed on the rendered output. Otherwise false.

### setGeneratesESI

    public void setGeneratesESI(boolean generatesESI)

  Sets a flag to indicate whether or not ESI processing should be performed on the rendered output.

  Parameters:
    `generatesESI` - true if ESI processing should be performed on the rendered output. Otherwise false.

### setGeneratesESI

    public void setGeneratesESI(java.lang.String generatesESI)

  Sets a flag to indicate whether or not ESI processing should be performed on the rendered output.

  Parameters:
    `generatesESI` - "true" if ESI processing should be performed on the rendered output. Otherwise "false".

### prepareResponse

    public boolean prepareResponse(PortletRenderRequest pr)
                            throws PortletException,
                                   PortletNotFoundException

  Sets default HTTP headers for the response. This consists of `content type` and page expiry time, both of which may be set programatically via calls to `setContentType(String)` and `setPageExpires(String)` or declaritivley in `provider.xml` with the `<contentType>` and `<pageExpires>` tags.

  Specified by:
    `prepareResponse` in class `ManagedRenderer`
  Parameters:
    `pr` - a `PortletRenderRequest`
  Returns:
    boolean flag indicating whether or not to render the portlet's contents (e.g. is the cached version still valid)
    `PortletException`
    `PortletNotFoundException`

### validate

    public void validate(java.lang.String context,
                         ValidationError errors)

  Validates the internal state of this `BaseManagedRenderer` instance. Errors found are reported using the supplied `ValidationError` instance.

  Specified by:
    `validate` in interface `Validateable`
  Parameters:
    `context` - The context of the calling instance.
    `errors` - The current list of errors.

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