The CM API distinguishes between a CcFile, which is the file in a view through which the above operations are performed, from the underlying ClearCase element and version (CcElement and CcVersion) it is associated with.
The CcFile.doVersionControl() method creates a CcElement resource and an initial CcVersion resource, which will have the same contents as the CcFile.
// Get the ClearCase provider. CcProvider provider = ...; // Create a CcFile proxy for the file to be checked out. // First, create a plain old Java "File" instance from the file's path. // Then create an StpLocation instance from that file. // Finally, create a CcFile proxy from the location. File file = new File("C:/my_views/example_view/avob/example.txt"); StpLocation fileLoc = provider.filePathLocation(Domain.CLEAR_CASE, file); CcFile testFile = provider.ccFile(fileLoc); // Create a property request for the file's properties that we're // interested in. Read those properties. Note that the resulting // property values are available *only* in the CcFile proxy returned by // doReadProperties(), not in the original proxy. PropertyRequest wantedProps = new PropertyRequest( CcFile.IS_VERSION_CONTROLLED, CcFile.IS_CHECKED_OUT); testFile = (CcFile) testFile.doReadProperties(wantedProps); if ( ! testFile.getIsVersionControlled()) { // The file is not yet under version control, so control it. // At the same time, re-read the properties we're interested in. testFile = (CcFile) testFile.doVersionControl(wantedProps); } if ( ! testFile.getIsCheckedOut()) { // The file is not yet checked out, so check it out. // At the same time, re-read the properties we're interested in. testFile = testFile.doCcCheckout(null, wantedProps); } // Verify that the file is now version controlled and checked out. assert(testFile.getIsVersionControlled() == true); assert(testFile.getIsCheckedOut() == true);
Certain operations on resources in a local Web view may or may not interact with a server. For example:
The Resource interface itself does not supply a method for creating the underlying resource, because some resources cannot be created by the user. Note the distinction between creating the proxy, which is a matter of instantiating a Resource object, and creating the resource, which must be done by calling the doCreateResource() or doCreateVersionControlledResource() method.