com.neocoretechs.rocksack.session

Interface TransactionSetInterface

public interface TransactionSetInterface

Method Summary

Modifier and Type	Method and Description
void	Close()
boolean	contains(TransactionId transactionId, java.lang.Comparable o) Contains a value object
java.lang.Object	first(TransactionId transactionId) Get the value of the object associated with first key
java.lang.Object	get(TransactionId transactionId, java.lang.Comparable o) Cause the b seekKey for the Comparable type.
java.lang.String	getDBName()
org.rocksdb.TransactionDB	getKVStore()
java.lang.Object	getMutexObject()
Session	getSession()
boolean	isEmpty(TransactionId transactionId) Is the KVStore empty?
java.util.Iterator<?>	iterator(TransactionId transactionId) Returns iterator
java.lang.Object	last(TransactionId transactionId) Get the last object associated with greatest valued key in the KVStore
void	Open() Open the files associated with the BTree for the instances of class
java.lang.Object	remove(TransactionId transactionId, java.lang.Comparable o) Remove the key and value of the parameter.
long	size(TransactionId transactionId) Get the number of keys total.

Method Detail

getDBName

java.lang.String getDBName()

getMutexObject

java.lang.Object getMutexObject()

get

java.lang.Object get(TransactionId transactionId,
                     java.lang.Comparable o)
              throws java.io.IOException

Cause the b seekKey for the Comparable type.

Parameters:

o - the Comparable object to seek.

Returns:

the value of object associated with the key, null if key was not found

Throws:

java.io.IOException

iterator

java.util.Iterator<?> iterator(TransactionId transactionId)
                        throws java.io.IOException

Returns iterator

Returns:

The Iterator over the entrySet

Throws:

java.io.IOException - If we cannot obtain the iterator

contains

boolean contains(TransactionId transactionId,
                 java.lang.Comparable o)
          throws java.io.IOException

Contains a value object

Parameters:

o -

Returns:

boolean if the value object is found

Throws:

java.io.IOException

remove

java.lang.Object remove(TransactionId transactionId,
                        java.lang.Comparable o)
                 throws java.io.IOException

Remove the key and value of the parameter.

Returns:

null or previous object

Throws:

java.io.IOException

first

java.lang.Object first(TransactionId transactionId)
                throws java.io.IOException

Get the value of the object associated with first key

Returns:

Object from first key

Throws:

java.io.IOException

last

java.lang.Object last(TransactionId transactionId)
               throws java.io.IOException

Get the last object associated with greatest valued key in the KVStore

Returns:

The Object of the greatest key

Throws:

java.io.IOException

size

long size(TransactionId transactionId)
   throws java.io.IOException

Get the number of keys total.

Returns:

The size of the KVStore.

Throws:

java.io.IOException

isEmpty

boolean isEmpty(TransactionId transactionId)
         throws java.io.IOException

Is the KVStore empty?

Returns:

true if it is empty.

Throws:

java.io.IOException

Open

void Open()
   throws java.io.IOException

Open the files associated with the BTree for the instances of class

Throws:

java.io.IOException

getKVStore

org.rocksdb.TransactionDB getKVStore()

Close

void Close()
    throws java.io.IOException

Throws:

java.io.IOException

getSession

Session getSession()
            throws java.io.IOException

Throws:

java.io.IOException