Package edu.wisc.library.ocfl.core.db

Class BaseObjectDetailsDatabase

java.lang.Object

edu.wisc.library.ocfl.core.db.BaseObjectDetailsDatabase

All Implemented Interfaces:

ObjectDetailsDatabase

Direct Known Subclasses:

H2ObjectDetailsDatabase, PostgresObjectDetailsDatabase

public abstract class BaseObjectDetailsDatabase
extends Object
implements ObjectDetailsDatabase

Constructor Summary

Constructors

Constructor	Description
BaseObjectDetailsDatabase(DataSource dataSource, boolean storeInventory, long waitTime, TimeUnit timeUnit, String lockFailCode, String duplicateKeyCode)

Method Summary

Modifier and Type	Method	Description
void	addObjectDetails(Inventory inventory, String inventoryDigest, byte[] inventoryBytes)	Adds ObjectDetails to the database.
void	deleteObjectDetails(String objectId)	Removes ObjectDetails from the database.
OcflObjectDetails	retrieveObjectDetails(String objectId)	Retrieves ObjectDetails from the database.
protected abstract void	setLockWaitTimeout(Connection connection, long waitMillis)	Sets the amount of time to wait for a row lock before timing out.
void	updateObjectDetails(Inventory inventory, String inventoryDigest, Path inventoryFile, Runnable runnable)	Updates existing ObjectDetails in the database.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BaseObjectDetailsDatabase

public BaseObjectDetailsDatabase(DataSource dataSource,
                                 boolean storeInventory,
                                 long waitTime,
                                 TimeUnit timeUnit,
                                 String lockFailCode,
                                 String duplicateKeyCode)

Method Detail

setLockWaitTimeout

protected abstract void setLockWaitTimeout(Connection connection,
                                           long waitMillis)
                                    throws SQLException

Sets the amount of time to wait for a row lock before timing out.

Parameters:

connection - db connection

waitMillis - time to wait for the lock in millis

Throws:

SQLException - on sql error

retrieveObjectDetails

public OcflObjectDetails retrieveObjectDetails(String objectId)

Retrieves ObjectDetails from the database. If no details can be found, null is returned.

Specified by:

retrieveObjectDetails in interface ObjectDetailsDatabase

Parameters:

objectId - the OCFL object id

Returns:

ObjectDetails or null

addObjectDetails

public void addObjectDetails(Inventory inventory,
                             String inventoryDigest,
                             byte[] inventoryBytes)

Adds ObjectDetails to the database. In the case of a concurrent update, this operation will only fail if the inventory digests are different.

Specified by:

addObjectDetails in interface ObjectDetailsDatabase

Parameters:

inventory - the object's inventory

inventoryDigest - the digest of the inventory

inventoryBytes - the serialized inventory bytes

updateObjectDetails

public void updateObjectDetails(Inventory inventory,
                                String inventoryDigest,
                                Path inventoryFile,
                                Runnable runnable)

Updates existing ObjectDetails in the database. The update is executed within a transaction. Before the transaction is committed, the supplied runnable is executed. The transaction is only committed if the runnable completes without exception.

Specified by:

updateObjectDetails in interface ObjectDetailsDatabase

Parameters:

inventory - the object's inventory

inventoryDigest - the digest of the inventory

inventoryFile - the path to the inventory on disk

runnable - the code to execute within the update transaction

deleteObjectDetails

public void deleteObjectDetails(String objectId)

Removes ObjectDetails from the database.

Specified by:

deleteObjectDetails in interface ObjectDetailsDatabase

Parameters:

objectId - the OCFL object id