com.ibm.portal.content
Interface ContentMetaDataModel

All Superinterfaces:

MetaDataModel

public interface ContentMetaDataModel
extends MetaDataModel

A model for accessing aggregated MetaData of content model nodes. The meta data that may be provided by individual nodes of the content model are combined according to the hierarchy that the ContentModel exposes for these nodes. Values set on the node itself take precedence over values set for its parents.

Example: Page 1 is the parent of page 2, page 2 is the parent of page 3.

Page	Individual meta data	Aggregated meta data
Page 1	key1=value1	key1=value1
Page 2	key2=value2	key1=value1 key2=value2
Page 3	key2=value3 key3=value4	key1=value1 key2=value3 key3=value4

This scenario is also depicted in the following figure:

The non-aggregated meta data of a content node can be obtained by checking that the node implements MetaDataProvider and if true by calling the method MetaDataProvider.getMetaData().
The aggregated meta data can be obtained by calling getMetaData(Object).

Since:

6.0

Method Summary

MetaData

getMetaData(java.lang.Object aNode) Returns the aggregated meta data for the given node.

Method Detail

getMetaData

MetaData getMetaData(java.lang.Object aNode)
                     throws ModelException,
                            ObjectNotFoundException

Returns the aggregated meta data for the given node. The node must be part of the content model.
Aggregation is done on the hierarchy exposed by the content model. See documentation of the interface for more details.

Specified by:

getMetaData in interface MetaDataModel

Parameters:

aNode - a content node of the content model to get meta data for.

Returns:

a MetaData object for the given node, never null

Throws:

ModelException - if an exception in the model code occurs

ObjectNotFoundException - if the given node is not part of the associated model