com.bea.wli.config.resource

Class PortableDelta

java.lang.Object

com.bea.wli.config.resource.PortableDelta

All Implemented Interfaces:

java.io.Serializable

public class PortableDelta
extends java.lang.Object
implements java.io.Serializable

Portable (serialized) representation of a delta between two values. Portable delta is derived from canonical delta, as opposed to from two PortableResource objects

See Also:

CanonicalDelta, Serialized Form

Constructor Summary

Constructors

Constructor and Description
PortableDelta(Ref ref, Digest digest, java.util.Map<java.lang.String,java.lang.String> customProps, byte[] serializedDelta, boolean isFullData)

Method Summary

Modifier and Type	Method and Description
Digest	getDigest() Returns the digest.
Ref	getRef() Returns the reference for this resource
boolean	isFullData() Returns true if the delta is in fact a whole value.
CanonicalDelta	toCanonicalDelta(ConfigService configService, com.bea.wli.security.encryption.PBE_DecryptionService ds) Converts to canonical delta representation
PortableResource	toPortableResource() Convenience method for converting PortableDelta to a PortableResource object.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PortableDelta

public PortableDelta(Ref ref,
                     Digest digest,
                     java.util.Map<java.lang.String,java.lang.String> customProps,
                     byte[] serializedDelta,
                     boolean isFullData)

Method Detail

getRef

public Ref getRef()

Returns the reference for this resource

getDigest

public Digest getDigest()

Returns the digest. By definition, the delta between two digests, namely digest1, and digest2 is digest2.

Returns:

isFullData

public boolean isFullData()

Returns true if the delta is in fact a whole value. In certain cases the difference between two values, value1 and value2, cannot be computed minimally. In such cases the value2 can be returned as the delta

toCanonicalDelta

public CanonicalDelta toCanonicalDelta(ConfigService configService,
                                       com.bea.wli.security.encryption.PBE_DecryptionService ds)
                                throws java.lang.Exception

Converts to canonical delta representation

Parameters:

configService - the config service

ds - decryption service. Can be null

Returns:

the canonical delta representation

Throws:

java.lang.Exception

See Also:

CanonicalDelta.toPortableDelta(com.bea.wli.config.ConfigService, com.bea.wli.security.encryption.PBE_EncryptionService)

toPortableResource

public PortableResource toPortableResource()
                                    throws java.lang.Exception

Convenience method for converting PortableDelta to a PortableResource object. This conversion will only work if the delta contains the full data, in other words it succeeds only when isFullData() returns true

Returns:

Throws:

java.lang.Exception