ObjectIdentity
implements Serializable| org.springframework.security.acls.model.ObjectIdentity |
 Known Indirect Subclasses
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Class Overview
Represents the identity of an individual domain object instance.
As implementations of ObjectIdentity are used as the key to represent domain objects in the ACL subsystem, it is essential that implementations provide methods so that object-equality rather than reference-equality can be relied upon reliably. In other words, the ACL subsystem can consider two ObjectIdentitys equal if identity1.equals(identity2), rather than reference-equality of identity1==identity2.
Summary
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Obtains the actual identifier.
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Obtains the "type" metadata for the domain object.
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Public Methods
public abstract boolean equals (Object obj)
Parameters
| obj | to be compared |
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Returns
- true if the objects are equal, false otherwise
See Also
public abstract Serializable getIdentifier ()
Obtains the actual identifier. This identifier must not be reused to represent other domain objects with the same javaType.
Because ACLs are largely immutable, it is strongly recommended to use a synthetic identifier (such as a database sequence number for the primary key). Do not use an identifier with business meaning, as that business meaning may change in the future such change will cascade to the ACL subsystem data.
Returns
- the identifier (unique within this type; never null)
public abstract String getType ()
Obtains the "type" metadata for the domain object. This will often be a Java type name (an interface or a class) – traditionally it is the name of the domain object implementation class.
Returns
- the "type" of the domain object (never null).