org.dbmaintain.database.impl
Class Db2Database

java.lang.Object
  org.dbmaintain.database.Database
      org.dbmaintain.database.impl.Db2Database

public class Db2Database
extends Database

Implementation of Database for an IBM DB2 database

Author:

Tim Ducheyne, Tuomas Jormola, Frederick Beernaert, Filip Neven

Field Summary

Fields inherited from class org.dbmaintain.database.Database

databaseConnection, identifierProcessor, schemaNames

Constructor Summary

Db2Database(DatabaseConnection databaseConnection, IdentifierProcessor identifierProcessor)

Method Summary

void	disableReferentialConstraints(String schemaName) Disables all referential constraints (e.g. foreign keys) on all table in the schema
protected void	disableReferentialConstraints(String schemaName, String tableName)
void	disableValueConstraints(String schemaName) Disables all value constraints (e.g. not null) on all tables in the schema
protected void	disableValueConstraints(String schemaName, String tableName)
Set<String>	getColumnNames(String schemaName, String tableName) Gets the names of all columns of the given table.
Set<String>	getIdentityColumnNames(String schemaName, String tableName) Gets the names of all identity columns of the given table.
Set<String>	getSequenceNames(String schemaName) Retrieves the names of all the sequences in the database schema.
long	getSequenceValue(String schemaName, String sequenceName) Returns the value of the sequence with the given name.
String	getSupportedDatabaseDialect()
Set<String>	getTableNames(String schemaName) Returns the names of all tables in the database.
Set<String>	getTriggerNames(String schemaName) Retrieves the names of all the triggers in the database schema.
Set<String>	getTypeNames(String schemaName) Retrieves the names of all the types in the database schema.
Set<String>	getViewNames(String schemaName) Retrieves the names of all the views in the database schema.
void	incrementIdentityColumnToValue(String schemaName, String tableName, String identityColumnName, long identityValue) Increments the identity value for the specified identity column on the specified table to the given value.
void	incrementSequenceToValue(String schemaName, String sequenceName, long newSequenceValue) Sets the next value of the sequence with the given sequence name to the given sequence value.
void	setDatabaseDefaultSchema() Sets the current schema of the database.
void	setSettingIdentityColumnValueEnabled(String schemaName, String tableName, boolean enabled) Enables or disables the setting of identity value in insert and update statements.
boolean	supportsIdentityColumns() Identity columns are supported.
boolean	supportsSequences() Sequences are supported.
boolean	supportsSetDatabaseDefaultSchema() Setting the default schema is supported.
boolean	supportsTriggers() Triggers are supported.
boolean	supportsTypes() Types are supported

Methods inherited from class org.dbmaintain.database.Database

disableReferentialConstraints, disableValueConstraints, dropMaterializedView, dropMaterializedView, dropRule, dropSequence, dropSequence, dropStoredProcedure, dropStoredProcedure, dropSynonym, dropSynonym, dropTable, dropTable, dropTrigger, dropTrigger, dropType, dropType, dropView, dropView, getColumnNames, getDatabaseInfo, getDatabaseName, getDataSource, getDefaultSchemaName, getIdentifierQuoteString, getIdentityColumnNames, getLongDataType, getMaterializedViewNames, getMaterializedViewNames, getRuleNames, getSchemaNames, getSequenceNames, getSequenceValue, getSQLHandler, getStoredIdentifierCase, getStoredProcedureNames, getStoredProcedureNames, getSynonymNames, getSynonymNames, getTableNames, getTextDataType, getTriggerNames, getTypeNames, getViewNames, incrementIdentityColumnToValue, incrementSequenceToValue, isQuoted, qualified, qualified, quoted, removeIdentifierQuotes, setSettingIdentityColumnValueEnabled, supportsCascade, supportsMaterializedViews, supportsRules, supportsStoredProcedures, supportsSynonyms, toCorrectCaseIdentifier

Methods inherited from class java.lang.Object

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

Constructor Detail

Db2Database

public Db2Database(DatabaseConnection databaseConnection,
                   IdentifierProcessor identifierProcessor)

Method Detail

getSupportedDatabaseDialect

public String getSupportedDatabaseDialect()

Specified by:

getSupportedDatabaseDialect in class Database

Returns:

the database dialect supported by this db support class, not null

getTableNames

public Set<String> getTableNames(String schemaName)

Returns the names of all tables in the database.

TODO check table types A = Alias G = Global temporary table H = Hierarchy table L = Detached table N = Nickname S = Materialized query table T = Table (untyped) U = Typed table V = View (untyped) W = Typed view

Specified by:

getTableNames in class Database

Parameters:

schemaName - The schema, not null

Returns:

The names of all tables in the database

getColumnNames

public Set<String> getColumnNames(String schemaName,
                                  String tableName)

Gets the names of all columns of the given table.

Specified by:

getColumnNames in class Database

Parameters:

tableName - The table, not null

schemaName - The schema, not null

Returns:

The names of the columns of the table with the given name

getViewNames

public Set<String> getViewNames(String schemaName)

Retrieves the names of all the views in the database schema.

TODO check view types V = View (untyped) W = Typed view

Specified by:

getViewNames in class Database

Parameters:

schemaName - The schema, not null

Returns:

The names of all views in the database

getSequenceNames

public Set<String> getSequenceNames(String schemaName)

Retrieves the names of all the sequences in the database schema.

Overrides:

getSequenceNames in class Database

Parameters:

schemaName - The schema, not null

Returns:

The names of all sequences in the database

getTriggerNames

public Set<String> getTriggerNames(String schemaName)

Retrieves the names of all the triggers in the database schema.

Overrides:

getTriggerNames in class Database

Parameters:

schemaName - The schema, not null

Returns:

The names of all triggers in the database

getTypeNames

public Set<String> getTypeNames(String schemaName)

Retrieves the names of all the types in the database schema.

Overrides:

getTypeNames in class Database

Parameters:

schemaName - The schema, not null

Returns:

The names of all types in the database

disableReferentialConstraints

public void disableReferentialConstraints(String schemaName)

Disables all referential constraints (e.g. foreign keys) on all table in the schema

Specified by:

disableReferentialConstraints in class Database

Parameters:

schemaName - The schema, not null

disableReferentialConstraints

protected void disableReferentialConstraints(String schemaName,
                                             String tableName)

disableValueConstraints

public void disableValueConstraints(String schemaName)

Disables all value constraints (e.g. not null) on all tables in the schema

Specified by:

disableValueConstraints in class Database

Parameters:

schemaName - The schema, not null

disableValueConstraints

protected void disableValueConstraints(String schemaName,
                                       String tableName)

getSequenceValue

public long getSequenceValue(String schemaName,
                             String sequenceName)

Returns the value of the sequence with the given name.

Note: this can have the side-effect of increasing the sequence value.

Overrides:

getSequenceValue in class Database

Parameters:

sequenceName - The sequence, not null

schemaName - The schema, not null

Returns:

The value of the sequence with the given name

incrementSequenceToValue

public void incrementSequenceToValue(String schemaName,
                                     String sequenceName,
                                     long newSequenceValue)

Sets the next value of the sequence with the given sequence name to the given sequence value.

Overrides:

incrementSequenceToValue in class Database

Parameters:

sequenceName - The sequence, not null

newSequenceValue - The value to set

schemaName - The schema, not null

getIdentityColumnNames

public Set<String> getIdentityColumnNames(String schemaName,
                                          String tableName)

Gets the names of all identity columns of the given table.

todo check, at this moment the PK columns are returned

Overrides:

getIdentityColumnNames in class Database

Parameters:

tableName - The table, not null

schemaName - The schema, not null

Returns:

The names of the identity columns of the table with the given name

incrementIdentityColumnToValue

public void incrementIdentityColumnToValue(String schemaName,
                                           String tableName,
                                           String identityColumnName,
                                           long identityValue)

Increments the identity value for the specified identity column on the specified table to the given value. If there is no identity specified on the given primary key, the method silently finishes without effect.

Overrides:

incrementIdentityColumnToValue in class Database

Parameters:

tableName - The table with the identity column, not null

identityColumnName - The column, not null

identityValue - The new value

schemaName - The schema, not null

setDatabaseDefaultSchema

public void setDatabaseDefaultSchema()

Sets the current schema of the database. If a current schema is set, it does not need to be specified explicitly in the scripts.

Overrides:

setDatabaseDefaultSchema in class Database

setSettingIdentityColumnValueEnabled

public void setSettingIdentityColumnValueEnabled(String schemaName,
                                                 String tableName,
                                                 boolean enabled)

Enables or disables the setting of identity value in insert and update statements. By default some databases do not allow to set values of identity columns directly from insert/update statements. If supported, this method will enable/disable this behavior.

Overrides:

setSettingIdentityColumnValueEnabled in class Database

Parameters:

schemaName - The schema name, not null

tableName - The table with the identity column, not null

enabled - True to enable, false to disable

supportsSequences

public boolean supportsSequences()

Sequences are supported.

Overrides:

supportsSequences in class Database

Returns:

True

supportsTriggers

public boolean supportsTriggers()

Triggers are supported.

Overrides:

supportsTriggers in class Database

Returns:

True

supportsIdentityColumns

public boolean supportsIdentityColumns()

Identity columns are supported.

Overrides:

supportsIdentityColumns in class Database

Returns:

True

supportsTypes

public boolean supportsTypes()

Types are supported

Overrides:

supportsTypes in class Database

Returns:

true

supportsSetDatabaseDefaultSchema

public boolean supportsSetDatabaseDefaultSchema()

Setting the default schema is supported.

Overrides:

supportsSetDatabaseDefaultSchema in class Database

Returns:

True