Package org.apache.cayenne.dba.sqlserver

Class SQLServerAdapter

java.lang.Object

org.apache.cayenne.dba.JdbcAdapter

org.apache.cayenne.dba.sqlserver.SQLServerAdapter

All Implemented Interfaces:

DbAdapter

public class SQLServerAdapter
extends JdbcAdapter

Cayenne DbAdapter implementation for Microsoft SQL Server RDBMS.

Since:

1.1

Field Summary

Fields inherited from class org.apache.cayenne.dba.JdbcAdapter

caseInsensitiveCollations, defaultCharColumnLength, ejbqlTranslator, extendedTypes, logger, nativeColumnTypes, quotingStrategy, supportsBatchUpdates, supportsGeneratedKeys, supportsUniqueConstraints

Constructor Summary

Constructors

Constructor	Description
SQLServerAdapter(RuntimeProperties runtimeProperties, List<ExtendedType> defaultExtendedTypes, List<ExtendedType> userExtendedTypes, List<ExtendedTypeFactory> extendedTypeFactories, ValueObjectTypeRegistry valueObjectTypeRegistry)

Method Summary

Modifier and Type	Method	Description
protected void	bind(PreparedStatement statement, Object value, int psPosition, int psType, int psScale, ExtendedType binder)	Binds a raw value to a statement parameter.
protected void	configureExtendedTypes(ExtendedTypeMap map)	Called from JdbcAdapter.initExtendedTypes(List, List, List, ValueObjectTypeRegistry) to load adapter-specific types into the ExtendedTypeMap right after the default types are loaded, but before the DI overrides are.
protected EJBQLTranslator	createEJBQLTranslator()	Creates and returns an EJBQLTranslator used to generate visitors for EJBQL to SQL translations.
protected NativeColumnType[]	createNativeTypes()	Returns the database-native types supported by this adapter.
PkGenerator	createPkGenerator()	Returns a SQLServerPkGenerator.
protected QuotingStrategy	createQuotingStrategy()
void	createTableAppendColumn(StringBuffer sqlBuffer, DbAttribute column)	Overrides super implementation to correctly set up identity columns.
String	createUniqueConstraint(DbEntity source, Collection<DbAttribute> columns)	Generates DDL to create unique index that allows multiple NULL values to comply with ANSI SQL, that is default behaviour for other RDBMS.
SQLAction	getAction(Query query, DataNode node)	Uses SQLServerActionBuilder to create the right action.
String	getBatchTerminator()	Returns the word "go".
SQLTreeProcessor	getSqlTreeProcessor()
List<String>	getSystemCatalogs()
List<String>	getSystemSchemas()
Integer	getVersion()
void	setVersion(Integer version)
boolean	supportsGeneratedKeysForBatchInserts()	Not supported, see: mssql-jdbc #245

Methods inherited from class org.apache.cayenne.dba.JdbcAdapter

bindParameter, bindParameter, buildAttribute, createFkConstraint, createTable, createTableAppendPKClause, defaultCharColumnLength, dropTableStatements, externalTypesForJdbcType, getEjbqlTranslator, getExtendedTypes, getProcedureTranslator, getQuotingStrategy, getQuotingStrategy, getSelectTranslator, getSQLLogger, getType, initExtendedTypes, nativeColumnTypes, setEjbqlTranslator, setEjbqlTranslatorFactory, setSupportsBatchUpdates, setSupportsGeneratedKeys, setSupportsUniqueConstraints, sizeAndPrecision, sizeAndScale, supportsBatchUpdates, supportsCatalogsOnReverseEngineering, supportsGeneratedKeys, supportsUniqueConstraints, tableTypeForTable, tableTypeForView, typeSupportsLength, typeSupportsScale, unwrap

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.cayenne.dba.DbAdapter

getEjbqlTranslatorFactory, preferredBindingType, preferredNativeColumnType

Constructor Details

SQLServerAdapter

public SQLServerAdapter(RuntimeProperties runtimeProperties,
 List<ExtendedType> defaultExtendedTypes,
 List<ExtendedType> userExtendedTypes,
 List<ExtendedTypeFactory> extendedTypeFactories,
 ValueObjectTypeRegistry valueObjectTypeRegistry)

Method Details

createNativeTypes

protected NativeColumnType[] createNativeTypes()

Description copied from class: JdbcAdapter

Returns the database-native types supported by this adapter.

Overrides:

createNativeTypes in class JdbcAdapter

createQuotingStrategy

protected QuotingStrategy createQuotingStrategy()

Overrides:

createQuotingStrategy in class JdbcAdapter

createEJBQLTranslator

protected EJBQLTranslator createEJBQLTranslator()

Description copied from class: JdbcAdapter

Creates and returns an EJBQLTranslator used to generate visitors for EJBQL to SQL translations. This method should be overriden by subclasses that need to customize EJBQL generation.

Overrides:

createEJBQLTranslator in class JdbcAdapter

getBatchTerminator

public String getBatchTerminator()

Returns the word "go".

Specified by:

getBatchTerminator in interface DbAdapter

Overrides:

getBatchTerminator in class JdbcAdapter

bind

protected void bind(PreparedStatement statement,
 Object value,
 int psPosition,
 int psType,
 int psScale,
 ExtendedType binder)
             throws Exception

Description copied from class: JdbcAdapter

Binds a raw value to a statement parameter. This is the single extension point shared by both bindParameter overloads; adapters that need database-specific handling (e.g. of NULLs) should override this method rather than the public overloads.

Overrides:

bind in class JdbcAdapter

Throws:

Exception

createTableAppendColumn

public void createTableAppendColumn(StringBuffer sqlBuffer,
 DbAttribute column)

Overrides super implementation to correctly set up identity columns.

Specified by:

createTableAppendColumn in interface DbAdapter

Overrides:

createTableAppendColumn in class JdbcAdapter

Parameters:

sqlBuffer - the StringBuffer to append the column type to

column - the DbAttribute defining the column to append type for

supportsGeneratedKeysForBatchInserts

public boolean supportsGeneratedKeysForBatchInserts()

Not supported, see: mssql-jdbc #245

See Also:

• DbAdapter.supportsGeneratedKeys()

createPkGenerator

public PkGenerator createPkGenerator()

Returns a SQLServerPkGenerator.

Specified by:

createPkGenerator in interface DbAdapter

Overrides:

createPkGenerator in class JdbcAdapter

getSqlTreeProcessor

public SQLTreeProcessor getSqlTreeProcessor()

Specified by:

getSqlTreeProcessor in interface DbAdapter

Overrides:

getSqlTreeProcessor in class JdbcAdapter

Returns:

SQLTreeProcessor that can adjust SQL tree to specific database flavour

Since:

4.2

configureExtendedTypes

protected void configureExtendedTypes(ExtendedTypeMap map)

Description copied from class: JdbcAdapter

Called from JdbcAdapter.initExtendedTypes(List, List, List, ValueObjectTypeRegistry) to load adapter-specific types into the ExtendedTypeMap right after the default types are loaded, but before the DI overrides are. This method has specific implementations in JdbcAdapter subclasses.

Overrides:

configureExtendedTypes in class JdbcAdapter

getAction

public SQLAction getAction(Query query,
 DataNode node)

Uses SQLServerActionBuilder to create the right action.

Specified by:

getAction in interface DbAdapter

Overrides:

getAction in class JdbcAdapter

Since:

1.2

getSystemSchemas

public List<String> getSystemSchemas()

Specified by:

getSystemSchemas in interface DbAdapter

Overrides:

getSystemSchemas in class JdbcAdapter

Returns:

list of system schemas

getSystemCatalogs

public List<String> getSystemCatalogs()

Specified by:

getSystemCatalogs in interface DbAdapter

Overrides:

getSystemCatalogs in class JdbcAdapter

Returns:

list of system catalogs

getVersion

public Integer getVersion()

setVersion

public void setVersion(Integer version)

Parameters:

version - of the server as provided by the JDBC driver

Since:

4.2

createUniqueConstraint

public String createUniqueConstraint(DbEntity source,
 Collection<DbAttribute> columns)

Generates DDL to create unique index that allows multiple NULL values to comply with ANSI SQL, that is default behaviour for other RDBMS.
Example:

 
 CREATE UNIQUE NONCLUSTERED INDEX _idx_entity_attribute
 ON entity(attribute)
 WHERE attribute IS NOT NULL
 
 

Specified by:

createUniqueConstraint in interface DbAdapter

Overrides:

createUniqueConstraint in class JdbcAdapter

Parameters:

source - entity for the index

columns - source columns for the index

Returns:

DDL to create unique index

Since:

4.2.1