com.sap.netweaver.bc.serialize

Interface IRecursiveDeltaChecker

public interface IRecursiveDeltaChecker

Utility class to be used in the area of Delta-serializations and exports. It is provided to any IDeltaSerializer when it must check if a given IResource has been modified or not.

Method Summary

Modifier and Type	Method and Description
IDeltaSerializer.DeltaSerializerParameters	getParameters()
boolean	isModified(IResource resource) All IDeltaSerializer that are registered for this resource will be called via their IDeltaSerializer.isModified(IResource, IRecursiveDeltaChecker) method.
boolean	isModified(RID rid, IResourceContext context) see isModified(IResource).

Method Detail

isModified

boolean isModified(IResource resource)
            throws WcmException

All IDeltaSerializer that are registered for this resource will be called via their IDeltaSerializer.isModified(IResource, IRecursiveDeltaChecker) method. If circle-references are not detected, by the implementation, this might result in a stack overflow!

Parameters:

resource - the resource to check modification for. Must not be null

Returns:

flag flag

Throws:

WcmException - WcmException

isModified

boolean isModified(RID rid,
                   IResourceContext context)
            throws WcmException

see isModified(IResource). This is a performance improvement method: If the implementation caches results, it might be able to return the flag without needing to do calculations. In this case, the resource's RID is sufficient information. A caller does not need to do the expensive resource instantiation in vain.

Parameters:

rid - the rid to check, must not be null

context - the current context, must not null

Returns:

flag flag

Throws:

WcmException - WcmException

getParameters

IDeltaSerializer.DeltaSerializerParameters getParameters()

Returns:

the current delta parameters. Must not be null