org.datanucleus.identity
Class StringIdentity

java.lang.Object
  extended by org.datanucleus.identity.SingleFieldIdentity
      extended by org.datanucleus.identity.StringIdentity
All Implemented Interfaces:
java.io.Externalizable, java.io.Serializable, java.lang.Comparable

public class StringIdentity
extends SingleFieldIdentity

Single-Field identity with a String field.

See Also:
Serialized Form

Field Summary
 
Fields inherited from class org.datanucleus.identity.SingleFieldIdentity
hashCode, keyAsObject
 
Constructor Summary
StringIdentity()
          Constructor only for Externalizable.
StringIdentity(java.lang.Class pcClass, java.lang.String key)
          Constructor with class and key.
 
Method Summary
 int compareTo(java.lang.Object o)
           
 boolean equals(java.lang.Object obj)
          Determine if the other object represents the same object id.
 java.lang.String getKey()
          Return the key.
 void readExternal(java.io.ObjectInput in)
          Read this object.
 java.lang.String toString()
          Return the String form of the key.
 void writeExternal(java.io.ObjectOutput out)
          Write this object.
 
Methods inherited from class org.datanucleus.identity.SingleFieldIdentity
assertKeyNotNull, createKeyAsObject, getKeyAsObject, getTargetClass, getTargetClassName, hashClassName, hashCode, setKeyAsObject
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Constructor Detail

StringIdentity

public StringIdentity(java.lang.Class pcClass,
                      java.lang.String key)
Constructor with class and key.

Parameters:
pcClass - the class
key - the key

StringIdentity

public StringIdentity()
Constructor only for Externalizable.

Method Detail

getKey

public java.lang.String getKey()
Return the key.

Returns:
the key

toString

public java.lang.String toString()
Return the String form of the key.

Overrides:
toString in class java.lang.Object
Returns:
the String form of the key

equals

public boolean equals(java.lang.Object obj)
Determine if the other object represents the same object id.

Overrides:
equals in class SingleFieldIdentity
Parameters:
obj - the other object
Returns:
true if both objects represent the same object id

compareTo

public int compareTo(java.lang.Object o)

writeExternal

public void writeExternal(java.io.ObjectOutput out)
                   throws java.io.IOException
Write this object. Write the superclass first.

Specified by:
writeExternal in interface java.io.Externalizable
Overrides:
writeExternal in class SingleFieldIdentity
Parameters:
out - the output
Throws:
java.io.IOException

readExternal

public void readExternal(java.io.ObjectInput in)
                  throws java.io.IOException,
                         java.lang.ClassNotFoundException
Read this object. Read the superclass first.

Specified by:
readExternal in interface java.io.Externalizable
Overrides:
readExternal in class SingleFieldIdentity
Parameters:
in - the input
Throws:
java.io.IOException
java.lang.ClassNotFoundException


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