javax.jdo.identity
Class ObjectIdentity
- Externalizable
public class ObjectIdentity
This class is for identity with a single Object type field.
boolean | equals(Object obj) - Determine if the other object represents the same object id.
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Object | getKey() - Return the key.
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void | readExternal(ObjectInput in) - Read this object.
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String | toString() - Return the String form of the object id.
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void | writeExternal(ObjectOutput out) - Write this object.
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assertKeyNotNull , createKeyAsObject , equals , getKeyAsObject , getTargetClass , getTargetClassName , hashClassName , hashCode , readExternal , setKeyAsObject , writeExternal |
ObjectIdentity
public ObjectIdentity()
Constructor only for Externalizable.
ObjectIdentity
public ObjectIdentity(Class pcClass,
Object param)
Constructor with class and key.
pcClass
- the classparam
- the key
equals
public boolean equals(Object obj)
Determine if the other object represents the same object id.
- equals in interface SingleFieldIdentity
- true if both objects represent the same object id
getKey
public Object getKey()
Return the key.
readExternal
public void readExternal(ObjectInput in)
throws IOException,
ClassNotFoundException
Read this object. Read the superclass first.
- readExternal in interface SingleFieldIdentity
toString
public String toString()
Return the String form of the object id. The class of the
object id is written as the first part of the result so that
the class can be reconstructed later. Then the toString
of the key instance is appended. During construction,
this process is reversed. The class is extracted from
the first part of the String, and the String constructor
of the key is used to construct the key itself.
- the String form of the key
writeExternal
public void writeExternal(ObjectOutput out)
throws IOException
Write this object. Write the superclass first.
- writeExternal in interface SingleFieldIdentity