org.mmbase.storage.implementation.database
Class ViewDatabaseStorageManager

java.lang.Object
  org.mmbase.storage.implementation.database.DatabaseStorageManager
      org.mmbase.storage.implementation.database.ViewDatabaseStorageManager

All Implemented Interfaces:

StorageManager

public class ViewDatabaseStorageManager

extends DatabaseStorageManager

Since:

MMBase-1.8

Version:

$Id: ViewDatabaseStorageManager.java,v 1.7 2005/12/09 14:25:32 nklasens Exp $

Warning: No Java Documentation Available.

Nested Class Summary

Nested classes inherited from class org.mmbase.storage.implementation.database.DatabaseStorageManager

DatabaseStorageManager.InputStreamBlob

Field Summary

Fields inherited from class org.mmbase.storage.implementation.database.DatabaseStorageManager

activeConnection, bufferSize, changes, factory, inTransaction, OBJ2TYPE_MAX_SIZE, sequenceKeys, tableNameCache, transactionIsolation, verifiedTablesCache

Constructor Summary

ViewDatabaseStorageManager()

Method Summary

void	change(MMObjectNode node, MMObjectBuilder builder) Changes a node in the passed builder and all its parent builders
void	create() Create the basic elements for this storage
protected void	create(Index index) Override the default version.
void	create(MMObjectBuilder builder) Create a storage element to store the specified builder's objects.
void	create(MMObjectNode node, MMObjectBuilder builder) This method inserts a new object in a specific builder, and registers the change.
protected void	createObject(MMObjectNode node, MMObjectBuilder builder) This method inserts a new object in a specific builder, and registers the change.
void	delete(MMObjectNode node, MMObjectBuilder builder) Deletes a node in the passed builder and all its parent builders.
boolean	exists() Determine if the basic storage elements exist Basic storage elements include the 'object' storage (where all objects and their types are registered).
protected boolean	exists(Index index) Determines if an index exists.
boolean	exists(MMObjectBuilder builder) Determine if a storage element exists for storing the given builder's objects
String	getFieldName(CoreField field)
CoreField	getNumberField()
String	getTableName(MMObjectBuilder builder)
String	getTableName(String viewname)
String	getViewName(MMObjectBuilder builder)
String	getViewName(String viewname)
boolean	isInheritedField(CoreField field)
boolean	viewCreate(MMObjectBuilder builder)
boolean	viewExists(MMObjectBuilder builder)

Methods inherited from class org.mmbase.storage.implementation.database.DatabaseStorageManager

beginTransaction, change, change, change, change, checkFile, commit, commitChange, convertLegacyBinaryFiles, create, create, create, createIndex, createIndices, createKey, createSequence, createTable, delete, delete, delete, delete, delete, deleteIndices, executeUpdate, executeUpdateCheckConnection, exists, exists, fillNode, getActiveConnection, getBinaryFile, getBinaryValue, getBlobFromDatabase, getBlobFromFile, getBlobValue, getBlobValue, getBlobValue, getBooleanValue, getConstraintDefinition, getDateTimeValue, getFieldDefinition, getFieldList, getFieldTypeDefinition, getInputStreamValue, getJDBCtoField, getLogStartTime, getNode, getNodeType, getStringValue, getStringValue, getValue, getVersion, getXMLValue, init, isPartOfBuilderDefinition, isVerified, logQuery, refresh, releaseActiveConnection, rollback, setBinaryValue, setBooleanValue, setDateTimeValue, setListValue, setNodeValue, setNullValue, setNumericValue, setStringValue, setValue, setXMLValue, shorten, size, size, storeBinaryAsFile, tablesInheritFields, unloadShortedFields, verify

Methods inherited from class java.lang.Object

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

Constructor Detail

ViewDatabaseStorageManager

public ViewDatabaseStorageManager()

Method Detail

exists

public boolean exists()
               throws StorageException

Determine if the basic storage elements exist Basic storage elements include the 'object' storage (where all objects and their types are registered).

Specified by:

exists in interface StorageManager

Overrides:

exists in class DatabaseStorageManager

Returns:

true if basic storage elements exist

Throws:

StorageException - if an error occurred while querying the storage

exists

public boolean exists(MMObjectBuilder builder)
               throws StorageException

Determine if a storage element exists for storing the given builder's objects

Specified by:

exists in interface StorageManager

Overrides:

exists in class DatabaseStorageManager

Parameters:

builder - the builder to check

Returns:

true if the storage element exists, false if it doesn't

Throws:

StorageException - if an error occurred while querying the storage

create

public void create()
            throws StorageException

Create the basic elements for this storage

Specified by:

create in interface StorageManager

Overrides:

create in class DatabaseStorageManager

Throws:

StorageException - if an error occurred during the creation of the object storage

create

public void create(MMObjectBuilder builder)
            throws StorageException

Create a storage element to store the specified builder's objects.

Specified by:

create in interface StorageManager

Overrides:

create in class DatabaseStorageManager

Parameters:

builder - the builder to create the storage element for

Throws:

StorageException - if an error occurred during the creation of the storage element

create

public void create(MMObjectNode node,
                   MMObjectBuilder builder)
            throws StorageException

Description copied from class: DatabaseStorageManager

This method inserts a new object in a specific builder, and registers the change. This method makes it easier to implement relational databases, where you may need to update the node in more than one builder. Call this method for all involved builders if you use a relational database.

Overrides:

create in class DatabaseStorageManager

Parameters:

node - The node to insert. The node already needs to have a (new) number assigned

builder - the builder to store the node

Throws:

StorageException - if an error occurred during creation

createObject

protected void createObject(MMObjectNode node,
                            MMObjectBuilder builder)
                     throws StorageException

This method inserts a new object in a specific builder, and registers the change. This method makes it easier to implement relational databases, where you may need to update the node in more than one builder. Call this method for all involved builders if you use a relational database.

Parameters:

node - The node to insert. The node already needs to have a (new) number assigned

builder - the builder to store the node

Throws:

StorageException - if an error occurred during creation

change

public void change(MMObjectNode node,
                   MMObjectBuilder builder)
            throws StorageException

Changes a node in the passed builder and all its parent builders

Overrides:

change in class DatabaseStorageManager

Parameters:

node - The node to change

builder - the builder to change the node in

Throws:

StorageException - if an error occurred during change

delete

public void delete(MMObjectNode node,
                   MMObjectBuilder builder)
            throws StorageException

Deletes a node in the passed builder and all its parent builders.

Overrides:

delete in class DatabaseStorageManager

Parameters:

node - The node to delete

builder - the builder to delete the node in

Throws:

StorageException - if an error occurred during delete

getFieldName

public String getFieldName(CoreField field)

isInheritedField

public boolean isInheritedField(CoreField field)

getNumberField

public CoreField getNumberField()

getTableName

public String getTableName(MMObjectBuilder builder)

getTableName

public String getTableName(String viewname)

getViewName

public String getViewName(MMObjectBuilder builder)

getViewName

public String getViewName(String viewname)

create

protected void create(Index index)
               throws StorageException

Override the default version. An index should only be created if all the fields are in this builder. Otherwise this will fail horrably.

Overrides:

create in class DatabaseStorageManager

Parameters:

index - the index to create

Throws:

StorageException

exists

protected boolean exists(Index index)
                  throws StorageException

Description copied from class: DatabaseStorageManager

Determines if an index exists. You should have an active connection before calling this method.

Overrides:

exists in class DatabaseStorageManager

Parameters:

index - the index to test

Throws:

StorageException - when a database error occurs

viewExists

public boolean viewExists(MMObjectBuilder builder)

viewCreate

public boolean viewCreate(MMObjectBuilder builder)