CoherenceTM v3.4
Copyright© 2000-2008 by Oracle Corporation

com.tangosol.net.partition
Class Ownership

java.lang.Object
  extended by com.tangosol.util.Base
      extended by com.tangosol.util.BitHelper
          extended by com.tangosol.util.ExternalizableHelper
              extended by com.tangosol.net.partition.Ownership
All Implemented Interfaces:
ExternalizableLite, java.io.Serializable

public class Ownership
extends ExternalizableHelper
implements ExternalizableLite

Ownership is a light-weight data structure that contains a partition ownership information.

Since:
Coherence 3.4
Author:
gg 2008.06.29

Field Summary
protected  int[] m_aiOwner
          An array of member ids representing the parition ownership.
 
Constructor Summary
Ownership()
          Default constructor (necessary for the ExternalizableLite interface).
Ownership(int cBackups)
          Construct an empty Ownership object with a given backup count.
 
Method Summary
 boolean equals(java.lang.Object o)
          Indicates whether some other object is "equal to" this one.
 int getOwner(int iStore)
          Return the owner id for the specified storage for this partition.
 int getPrimaryOwner()
          Return the primary owner id for this partition.
 void readExternal(java.io.DataInput in)
          Restore the contents of this object by loading the object's state from the passed DataInput object.
 void setOwner(int iStore, int iOwner)
          Specify a new owner id for the specified storage for this partition.
 void setPrimaryOwner(int iOwner)
          Specify a new primary owner id for this partition.
 java.lang.String toString()
          Returns a string representation of this Ownership.
 void writeExternal(java.io.DataOutput out)
          Save the contents of this object by storing the object's state into the passed DataOutput object.
 
Methods inherited from class com.tangosol.util.BitHelper
countBits, countBits, countBits, indexOfLSB, indexOfLSB, indexOfLSB, indexOfMSB, indexOfMSB, indexOfMSB, toBitString, toBitString, toBitString
 

Field Detail

m_aiOwner

protected int[] m_aiOwner
An array of member ids representing the parition ownership.

Constructor Detail

Ownership

public Ownership()
Default constructor (necessary for the ExternalizableLite interface).


Ownership

public Ownership(int cBackups)
Construct an empty Ownership object with a given backup count.

Parameters:
cBackups - the partition count
Method Detail

getPrimaryOwner

public int getPrimaryOwner()
Return the primary owner id for this partition.

Returns:
the primary owner id for this partition

setPrimaryOwner

public void setPrimaryOwner(int iOwner)
Specify a new primary owner id for this partition.

Parameters:
iOwner - the new primary owner id for this partition

getOwner

public int getOwner(int iStore)
Return the owner id for the specified storage for this partition.

Parameters:
iStore - the storage index (zero for primary)
Returns:
the owner id or zero if there is no owner

setOwner

public void setOwner(int iStore,
                     int iOwner)
Specify a new owner id for the specified storage for this partition.

Parameters:
iStore - the storage index (zero for primary)
iOwner - the new primary owner id or zero if there is no owner

readExternal

public void readExternal(java.io.DataInput in)
                  throws java.io.IOException
Restore the contents of this object by loading the object's state from the passed DataInput object.

Specified by:
readExternal in interface ExternalizableLite
Parameters:
in - the DataInput stream to read data from in order to restore the state of this object
Throws:
java.io.IOException - if an I/O exception occurs
java.io.NotActiveException - if the object is not in its initial state, and therefore cannot be deserialized into

writeExternal

public void writeExternal(java.io.DataOutput out)
                   throws java.io.IOException
Save the contents of this object by storing the object's state into the passed DataOutput object.

Specified by:
writeExternal in interface ExternalizableLite
Parameters:
out - the DataOutput stream to write the state of this object to
Throws:
java.io.IOException - if an I/O exception occurs

equals

public boolean equals(java.lang.Object o)
Indicates whether some other object is "equal to" this one.

Parameters:
o - the object to test for equality
Returns:
true if this object is the same as the given one; false otherwise.

toString

public java.lang.String toString()
Returns a string representation of this Ownership.

Returns:
a string representation of this Ownership

CoherenceTM v3.4
Copyright© 2000-2008 by Oracle Corporation