org.datanucleus.identity
Class IntFieldPK

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

public class IntFieldPK
extends SingleFieldPK

Single-Field identity with an int/Integer field.

See Also:
Serialized Form

Field Summary
 
Fields inherited from class org.datanucleus.identity.SingleFieldPK
hashCode, keyAsObject
 
Constructor Summary
IntFieldPK()
          Constructor only for Externalizable.
IntFieldPK(java.lang.Class pcClass, int key)
          Constructor with class and key.
IntFieldPK(java.lang.Class pcClass, java.lang.Integer key)
          Constructor with class and key.
IntFieldPK(java.lang.Class pcClass, java.lang.String str)
          Constructor with class and key.
 
Method Summary
 int compareTo(java.lang.Object o)
           
protected  java.lang.Object createKeyAsObject()
          Create the key as an Object.
 boolean equals(java.lang.Object obj)
          Determine if the other object represents the same object id.
 int 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.SingleFieldPK
assertKeyNotNull, getKeyAsObject, getTargetClass, getTargetClassName, hashClassName, hashCode, setKeyAsObject
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Constructor Detail

IntFieldPK

public IntFieldPK(java.lang.Class pcClass,
                  int key)
Constructor with class and key.

Parameters:
pcClass - the class
key - the key

IntFieldPK

public IntFieldPK(java.lang.Class pcClass,
                  java.lang.Integer key)
Constructor with class and key.

Parameters:
pcClass - the class
key - the key

IntFieldPK

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

Parameters:
pcClass - the class
str - the key

IntFieldPK

public IntFieldPK()
Constructor only for Externalizable.

Method Detail

getKey

public int 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 SingleFieldPK
Parameters:
obj - the other object
Returns:
true if both objects represent the same object id

compareTo

public int compareTo(java.lang.Object o)

createKeyAsObject

protected java.lang.Object createKeyAsObject()
Create the key as an Object.

Overrides:
createKeyAsObject in class SingleFieldPK
Returns:
the key as an Object

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 SingleFieldPK
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 SingleFieldPK
Parameters:
in - the input
Throws:
java.io.IOException
java.lang.ClassNotFoundException


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