Package com.day.cq.wcm.undo

Interface BinaryValueManager

public interface BinaryValueManager

Provides means to manage binary values for the CQ5 undo.

Method Summary

Modifier and Type	Method	Description
void	delete(ResourceResolver resolver, String undoPath)	Deletes a binary value from the specified target path.
void	delete(Resource par, String subPath, boolean deletePar)	Deletes a binary value from the specified target path.
boolean	isChanged(Resource par, String subPath, String originalRef)	Checks if the binary value (located at the specified sub-path of the specified paragraph) has changed in relation to the specified original undo data.
void	restore(Resource undoData, Resource par, String subPath)	Restores a binary value from the undo area to a specific content path.
String	save(Resource par, String subPath)	Saves the binary value at the specified repository path to the undo area.

Method Detail

isChanged

boolean isChanged(Resource par,
                  String subPath,
                  String originalRef)
           throws BinaryHandlingException

Checks if the binary value (located at the specified sub-path of the specified paragraph) has changed in relation to the specified original undo data.

Parameters:

par - The paragraph

subPath - The sub-path of the binary data

originalRef - The reference to the original binary data (as returned by a previous call to save(org.apache.sling.api.resource.Resource, java.lang.String))

Returns:

true if the binary data has changed

Throws:

BinaryHandlingException - if the check could not be executed

save

String save(Resource par,
            String subPath)
     throws BinaryHandlingException

Saves the binary value at the specified repository path to the undo area.

Parameters:

par - The paragraph

subPath - The sub-path of the binary data

Returns:

The path of the binary value

Throws:

BinaryHandlingException - if the binary resource could not be saved for undo purposes

restore

void restore(Resource undoData,
             Resource par,
             String subPath)
      throws BinaryHandlingException

Restores a binary value from the undo area to a specific content path.

Parameters:

undoData - The binary value used for restoring ("source")

par - The paragraph to restore to

subPath - The sub-path the binary value will be restored to

Throws:

BinaryHandlingException - if the binary value could not be restored

delete

void delete(Resource par,
            String subPath,
            boolean deletePar)
     throws BinaryHandlingException

Deletes a binary value from the specified target path.

Parameters:

par - The paragraph

subPath - The sub-path of the binary

deletePar - true to delete the entire paragraph; false to delete the BLOB node only

Throws:

BinaryHandlingException - if the binary value could not be removed

delete

void delete(ResourceResolver resolver,
            String undoPath)
     throws BinaryHandlingException

Deletes a binary value from the specified target path.

Parameters:

resolver - The resource resolver to be used for accessing the repository

undoPath - The path to delete from (as, for example returned by save(org.apache.sling.api.resource.Resource, java.lang.String))

Throws:

BinaryHandlingException - if the binary value could not be removed