If web is used as the communication method, you must provide the required configuration value. You must supply values for these configuration settings if secure socket communication SSL is used as the communication protocol:. The default value is localhost. The default value is You must supply values for both socket communication listener port and these configuration settings if secure socket communication SSL is used as the communication protocol:.
For information about socket communication values, see Section You need to supply a value for one of these configuration settings if your application is connecting through the web server filter web communication :. This setting provides a more seamless integration for Oracle WebCenter and for other application integrations. Include the protocol usually http or https , host name, port, relative web root, and extension root usually idcplg.
If a port other than port 80 is used, the port number needs to be specified. This value can be set to help identify requests made by the JCR adapter. Defaults to 0 zero , cache invalidation disabled. The minimum value is 2 minutes. The default value is KB. Content managed by Content Server is primarily tracked by four tables:. These tables track the content's metadata, state, and actions as well as information that is associated with each file. Content Server provides various ways to search the repository.
To efficiently perform text searches, the full-text search feature of Oracle Database can be utilized, and the IdcText table can be created to hold the search index.
This table contains selected columns from the Revisions , Documents , DocMeta , and RevClasses tables as well as columns for other data:. Quite straightforward: we just address the node by its full path relative to the root, and print out its path and the value of its message property. Although we have just scratched the surface of JCR, the concepts exposed here are probably the most important ones:. To go further, the best might be to read the JSR spec itself.
API specifications are usually not one's favorite bedtime reading, but this one is surprisingly readable. I would not read it linearly however, and suggest the following reading order:. At this point, you would have most of the tools required to manage content, the rest of the spec's features are certainly useful but you might not need all of them.
It took me a while to really grasp JCR and use it effectively in my content management activities, but I'm not going back to the often messy world of hybrid databases and files and message queues and a few others things content management architecture. Bertrand is a member of the Apache software foundation, served on its Board of Directors from to , and is involved in a number of Apache projects related to content management.
Thanks for visiting DZone today,. Edit Profile. Sign Out View Profile. Over 2 million developers have joined DZone. Learn the basics of Java Content Repositories, including how they work, and how they're used. Like 5. Join the DZone community and get the full member experience. Join For Free. What is JCR? Unstructured content Having precise definitions of content models, as in the file storage example, is very useful for content that has a well defined and stable structure. Going further Although we have just scratched the surface of JCR, the concepts exposed here are probably the most important ones: Combining unstructured and structured content provides a lot of flexibility, and content model constraints can be used selectively where they make sense.
In terms of storage flexibility, think XML - but without the dreaded angle brackets. The storage model uses simple Node and Property interfaces, no need to study tons of documentation to use it. JCR works great here, because you can store the metadata in the same location as the files: those that understand these extra properties can see them, those that don't care don't have to see them.
There are also repositories for managing web service artifacts, data service artifacts, and test artifacts. But JCR repositories are not for managing files. JCR uses a simple notion of a hierarchy of nodes, where the nodes can contain named properties with one or multiple values and children.
The properties and child node that are allowed are dictated entirely by node types, which can be changed and mixed in as needed on a node-by-node basis. JCR predefines some built-in node types that are commonly needed, like those used to represent files and folders in the repository.
You can reuse these built-in types, extend them, or write your own. Many people advocate using mixins almost as facets or aspects, so that if a node needs to take on a facet you can simply add a mixin to the node. JCR was designed to easily support importing XML content into the repository, where each element is mapped to a node and each attribute is mapped to an attribute.
As an example, consider a JCR repository that stores configuration information that might normally be stored in multiple XML files. JCR can version that information, allow access to it from multiple processes, enable querying and search, and notify the application s when content changes.
Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. When to use JCR content repository over other options? Ask Question. Asked 11 years, 1 month ago. Active 1 year, 2 months ago.
0コメント