org.mmbase.module.database.support
Class MMSQL92Node

java.lang.Object
  |
  +--org.mmbase.module.database.support.MMSQL92Node

All Implemented Interfaces:

MMJdbc2NodeInterface

Direct Known Subclasses:

MMHsqldb2Node, MMHypersonic2Node, MMInformix42Node, MMMysql42Node, MMOORel2Node, MMOracle, MMPostgres42Node

public class MMSQL92Node

extends java.lang.Object

implements MMJdbc2NodeInterface

MMSQL92Node implements the MMJdbc2NodeInterface for sql92 types of database this is the class used to abstact the query's needed for mmbase for each database.

Version:

$Id: MMSQL92Node.java,v 1.75.2.2 2003/03/27 17:31:43 robmaris Exp $

Author:

Daniel Ockeloen, Pierre van Rooden, Kees Jongenburger

Field Summary

protected java.util.Hashtable	allowed2disallowed
protected java.util.Hashtable	disallowed2allowed
protected MMBase	mmb
java.lang.String	name
protected XMLDatabaseReader	parser
protected java.util.Hashtable	typeMapping

Constructor Summary

MMSQL92Node()

Method Summary

boolean	addField(MMObjectBuilder bul, java.lang.String fieldname)
boolean	changeField(MMObjectBuilder bul, java.lang.String fieldname)
boolean	commit(MMObjectBuilder bul, MMObjectNode node) Commit this node to the database
java.lang.String	convertXMLType(FieldDefs def)
boolean	create_real(MMObjectBuilder bul, java.lang.String tableName) Will be removed once the xml setup system is done (?)
boolean	create(MMObjectBuilder bul)
boolean	created(java.lang.String tableName) Tells if a table already exists
boolean	createObjectTable(java.lang.String baseName)
MMObjectNode	decodeDBnodeField(MMObjectNode node, java.lang.String fieldname, java.sql.ResultSet rs, int i)
MMObjectNode	decodeDBnodeField(MMObjectNode node, java.lang.String fieldname, java.sql.ResultSet rs, int i, java.lang.String prefix)
protected java.lang.String	decodeStringField(java.sql.ResultSet rs, int i) Some Database implementations want to fake encoding, and can override this function.
boolean	drop_real(MMObjectBuilder bul, java.lang.String tableName) Will be removed once the xml setup system is done (?)
boolean	drop(MMObjectBuilder bul)
java.lang.String	getAllowedField(java.lang.String disallowedfield)
MultiConnection	getConnection(JDBCInterface jdbc)
byte[]	getDBByte(java.sql.ResultSet rs, int idx) Get byte of a database blob
int	getDBKey() Gives an unique number for a node to be inserted.
protected int	getDBKeyOld() Deprecated. Can be replaced by '1'. Because new installations create the the numberTable when there are not objects yet.
java.lang.String	getDBText(java.sql.ResultSet rs, int idx) Get text of a database blob
java.lang.String	getDisallowedField(java.lang.String allowedfield)
java.lang.String	getMatchCREATE(java.lang.String tableName) gets the sytax of the create statement for current database.
java.lang.String	getMMNodeSearch2SQL(java.lang.String where, MMObjectBuilder bul)
java.lang.String	getNumberString()
java.lang.String	getOTypeString()
java.lang.String	getOwnerString()
java.util.Hashtable	getReverseHash(java.util.Hashtable in)
byte[]	getShortedByte(java.lang.String tableName, java.lang.String fieldname, int number) Get byte of a database blob
java.lang.String	getShortedText(java.lang.String tableName, java.lang.String fieldname, int number) Get text from blob
void	init(MMBase mmb, XMLDatabaseReader parser)
int	insert_real(MMObjectBuilder bul, java.lang.String owner, MMObjectNode node, java.lang.String tableName)
int	insert(MMObjectBuilder bul, java.lang.String owner, MMObjectNode node) Insert: This method inserts a new object, normally not used (only subtables are used) Only fields with DBState value = DBSTATE_PERSISTENT or DBSTATE_SYSTEM are inserted.
boolean	isAllowedParentBuilder(MMObjectBuilder builder) Returns whether this database support layer allows for buidler to be a parent builder (that is, other builders can 'extend' this builder and its database tables).
protected java.lang.String	matchType(int type, int size, boolean notnull)
java.lang.String	parseFieldPart(java.lang.String fieldname, int dbtype, java.lang.String part)
void	registerParentBuilder(MMObjectBuilder parent, MMObjectBuilder child) Registers a builder as a parent builder (that is, other buidlers can 'extend' this builder and its database tables).
boolean	removeField(MMObjectBuilder bul, java.lang.String fieldname)
void	removeNode(MMObjectBuilder bul, MMObjectNode node) removeNode
void	setDBByte(int i, java.sql.PreparedStatement stmt, byte[] bytes) Set byte array in database
void	setDBText(int i, java.sql.PreparedStatement stmt, java.lang.String body) Set text array in database
int	size(java.lang.String tableName) Return number of entries consisting in given table
boolean	tableSizeProtection(MMObjectBuilder bul)
boolean	updateTable(MMObjectBuilder bul)

Methods inherited from class java.lang.Object

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

Field Detail

name

public java.lang.String name

parser

protected XMLDatabaseReader parser

typeMapping

protected java.util.Hashtable typeMapping

disallowed2allowed

protected java.util.Hashtable disallowed2allowed

allowed2disallowed

protected java.util.Hashtable allowed2disallowed

mmb

protected MMBase mmb

Constructor Detail

MMSQL92Node

public MMSQL92Node()

Method Detail

init

public void init(MMBase mmb,
                 XMLDatabaseReader parser)

Specified by:

init in interface MMJdbc2NodeInterface

decodeDBnodeField

public MMObjectNode decodeDBnodeField(MMObjectNode node,
                                      java.lang.String fieldname,
                                      java.sql.ResultSet rs,
                                      int i)

Specified by:

decodeDBnodeField in interface MMJdbc2NodeInterface

isAllowedParentBuilder

public boolean isAllowedParentBuilder(MMObjectBuilder builder)

Returns whether this database support layer allows for buidler to be a parent builder (that is, other builders can 'extend' this builder and its database tables).

Specified by:

isAllowedParentBuilder in interface MMJdbc2NodeInterface

Parameters:

builder - the builder to test

Returns:

true if the builder can be extended

Since:

MMBase-1.6

registerParentBuilder

public void registerParentBuilder(MMObjectBuilder parent,
                                  MMObjectBuilder child)
                           throws UnsupportedDatabaseOperationException

Registers a builder as a parent builder (that is, other buidlers can 'extend' this builder and its database tables). At the least, this code should check whether the builder is allowed as a parent builder, and throw an exception if this is not possible. This method can be overridden to allow for optimization of code regarding such builders.

Specified by:

registerParentBuilder in interface MMJdbc2NodeInterface

Parameters:

parent - the parent builder to register

child - the builder to register as the parent's child

Throws:

UnsupportedDatabaseOperationException - when the databse layer does not allow extension of this builder

Since:

MMBase-1.6

decodeStringField

protected java.lang.String decodeStringField(java.sql.ResultSet rs,
                                             int i)
                                      throws java.sql.SQLException

Some Database implementations want to fake encoding, and can override this function.

Since:

MMBase-1.6

decodeDBnodeField

public MMObjectNode decodeDBnodeField(MMObjectNode node,
                                      java.lang.String fieldname,
                                      java.sql.ResultSet rs,
                                      int i,
                                      java.lang.String prefix)

Specified by:

decodeDBnodeField in interface MMJdbc2NodeInterface

getMMNodeSearch2SQL

public java.lang.String getMMNodeSearch2SQL(java.lang.String where,
                                            MMObjectBuilder bul)

Specified by:

getMMNodeSearch2SQL in interface MMJdbc2NodeInterface

parseFieldPart

public java.lang.String parseFieldPart(java.lang.String fieldname,
                                       int dbtype,
                                       java.lang.String part)

getShortedText

public java.lang.String getShortedText(java.lang.String tableName,
                                       java.lang.String fieldname,
                                       int number)

Get text from blob

Specified by:

getShortedText in interface MMJdbc2NodeInterface

getShortedByte

public byte[] getShortedByte(java.lang.String tableName,
                             java.lang.String fieldname,
                             int number)

Get byte of a database blob

Specified by:

getShortedByte in interface MMJdbc2NodeInterface

getDBByte

public byte[] getDBByte(java.sql.ResultSet rs,
                        int idx)

Get byte of a database blob

Specified by:

getDBByte in interface MMJdbc2NodeInterface

getDBText

public java.lang.String getDBText(java.sql.ResultSet rs,
                                  int idx)

Get text of a database blob

Specified by:

getDBText in interface MMJdbc2NodeInterface

insert

public int insert(MMObjectBuilder bul,
                  java.lang.String owner,
                  MMObjectNode node)

Insert: This method inserts a new object, normally not used (only subtables are used) Only fields with DBState value = DBSTATE_PERSISTENT or DBSTATE_SYSTEM are inserted. Fields with DBstate values = DBSTATE_VIRTUAL or any other value are skipped.

Specified by:

insert in interface MMJdbc2NodeInterface

Parameters:

bul - The MMObjectBuilder.

owner - The nodes' owner.

node - The current node that's to be inserted.

Returns:

The DBKey number for this node, or -1 if an error occurs.

insert_real

public int insert_real(MMObjectBuilder bul,
                       java.lang.String owner,
                       MMObjectNode node,
                       java.lang.String tableName)

setDBText

public void setDBText(int i,
                      java.sql.PreparedStatement stmt,
                      java.lang.String body)

Set text array in database

setDBByte

public void setDBByte(int i,
                      java.sql.PreparedStatement stmt,
                      byte[] bytes)

Set byte array in database

Specified by:

setDBByte in interface MMJdbc2NodeInterface

commit

public boolean commit(MMObjectBuilder bul,
                      MMObjectNode node)

Commit this node to the database

Specified by:

commit in interface MMJdbc2NodeInterface

removeNode

public void removeNode(MMObjectBuilder bul,
                       MMObjectNode node)

removeNode

Specified by:

removeNode in interface MMJdbc2NodeInterface

getDBKey

public int getDBKey()

Gives an unique number for a node to be inserted. This method will work with multiple mmbases

Specified by:

getDBKey in interface MMJdbc2NodeInterface

Returns:

unique number

getDBKeyOld

protected int getDBKeyOld()

Deprecated. Can be replaced by '1'. Because new installations create the the numberTable when there are not objects yet.

Get a new object key without using numberTable, that is, by getting the max number of mm_object. If object table does not exist (yet), it returns 1. This is only used when creating the numberTable.

created

public boolean created(java.lang.String tableName)

Tells if a table already exists

Specified by:

created in interface MMJdbc2NodeInterface

Returns:

true if table exists, false if table doesn't exists

size

public int size(java.lang.String tableName)

Return number of entries consisting in given table

Parameters:

tableName - the table that has to be counted

Returns:

the number of items the table has

create

public boolean create(MMObjectBuilder bul)

Specified by:

create in interface MMJdbc2NodeInterface

create_real

public boolean create_real(MMObjectBuilder bul,
                           java.lang.String tableName)

Will be removed once the xml setup system is done (?)

drop

public boolean drop(MMObjectBuilder bul)

Specified by:

drop in interface MMJdbc2NodeInterface

drop_real

public boolean drop_real(MMObjectBuilder bul,
                         java.lang.String tableName)

Will be removed once the xml setup system is done (?)

addField

public boolean addField(MMObjectBuilder bul,
                        java.lang.String fieldname)

Specified by:

addField in interface MMJdbc2NodeInterface

removeField

public boolean removeField(MMObjectBuilder bul,
                           java.lang.String fieldname)

Specified by:

removeField in interface MMJdbc2NodeInterface

changeField

public boolean changeField(MMObjectBuilder bul,
                           java.lang.String fieldname)

Specified by:

changeField in interface MMJdbc2NodeInterface

updateTable

public boolean updateTable(MMObjectBuilder bul)

Specified by:

updateTable in interface MMJdbc2NodeInterface

createObjectTable

public boolean createObjectTable(java.lang.String baseName)

Specified by:

createObjectTable in interface MMJdbc2NodeInterface

convertXMLType

public java.lang.String convertXMLType(FieldDefs def)

matchType

protected java.lang.String matchType(int type,
                                     int size,
                                     boolean notnull)

getMatchCREATE

public java.lang.String getMatchCREATE(java.lang.String tableName)

gets the sytax of the create statement for current database.

getReverseHash

public java.util.Hashtable getReverseHash(java.util.Hashtable in)

getDisallowedField

public java.lang.String getDisallowedField(java.lang.String allowedfield)

Specified by:

getDisallowedField in interface MMJdbc2NodeInterface

getAllowedField

public java.lang.String getAllowedField(java.lang.String disallowedfield)

Specified by:

getAllowedField in interface MMJdbc2NodeInterface

getConnection

public MultiConnection getConnection(JDBCInterface jdbc)
                              throws java.sql.SQLException

Specified by:

getConnection in interface MMJdbc2NodeInterface

getNumberString

public java.lang.String getNumberString()

Specified by:

getNumberString in interface MMJdbc2NodeInterface

getOTypeString

public java.lang.String getOTypeString()

Specified by:

getOTypeString in interface MMJdbc2NodeInterface

getOwnerString

public java.lang.String getOwnerString()

Specified by:

getOwnerString in interface MMJdbc2NodeInterface

tableSizeProtection

public boolean tableSizeProtection(MMObjectBuilder bul)