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public interface IDatabase
Interface that is implemented by Database wrappers
Method Summary | |
---|---|
void |
abortTransaction(ITransaction transaction)
Abort a transaction, rolling back all changes. |
ITransaction |
beginTransaction()
Begin a new transaction. |
void |
commitTransaction(ITransaction transaction)
Commit a transaction, making all changes persistent |
void |
deleteNode(ITransaction transaction,
java.lang.String key)
Delete the node specified by the given key. |
INode |
getNode(ITransaction transaction,
java.lang.String key)
Get the node from the database specified by the given key. |
void |
init(java.io.File dbHome,
Application app)
Initialize the database with the given db directory and application. |
void |
insertNode(ITransaction transaction,
java.lang.String key,
INode node)
Insert a node with the given key |
java.lang.String |
nextID()
Get the next ID from the db's ID generator |
void |
shutdown()
Let the database know we're shutting down. |
void |
updateNode(ITransaction transaction,
java.lang.String key,
INode node)
Update a node with the given key |
Method Detail |
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void init(java.io.File dbHome, Application app)
dbHome
- app
- void shutdown()
java.lang.String nextID() throws ObjectNotFoundException
ObjectNotFoundException
INode getNode(ITransaction transaction, java.lang.String key) throws java.io.IOException, ObjectNotFoundException
transaction
- key
-
java.io.IOException
ObjectNotFoundException
- if no object exists for the key.void insertNode(ITransaction transaction, java.lang.String key, INode node) throws java.io.IOException
transaction
- key
- node
-
java.io.IOException
void updateNode(ITransaction transaction, java.lang.String key, INode node) throws java.io.IOException
transaction
- key
- node
-
java.io.IOException
void deleteNode(ITransaction transaction, java.lang.String key) throws java.io.IOException
transaction
- ...key
- ...
java.io.IOException
- ...ITransaction beginTransaction()
void commitTransaction(ITransaction transaction) throws DatabaseException
transaction
-
DatabaseException
void abortTransaction(ITransaction transaction) throws DatabaseException
transaction
-
DatabaseException
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