The Oracle WebCenter adapter for EMC Documentum extracts content from an EMC Documentum repository and submits to the JCR Documentum adapter. The Oracle WebCenter adapter for EMC Documentum reads Documentum objects, documents, folders, users, and groups. It accesses the Documentum repository using the Documentum Foundation Classes (DFC).The Oracle WebCenter adapter for EMC Documentum periodically checks for content updates, for example, modified, created, or deleted Documentum objects, in the Documentum repository. The adapter also checks for user and permission updates, such as users, groups, and group memberships, in the Documentum repository. The frequency of these checks is configurable.The Oracle WebCenter adapter for EMC Documentum receives JCR internal query from WebCenter framework, and converts it to Documentum query language (DQL). Then, it converts Documentum resultset into JCR query results.