org.apache.cayenne.dba.oracle

Class OracleAdapter

java.lang.Object

org.apache.cayenne.dba.JdbcAdapter

org.apache.cayenne.dba.oracle.OracleAdapter

All Implemented Interfaces:

DbAdapter

Direct Known Subclasses:

Oracle8Adapter

public class OracleAdapter
extends JdbcAdapter

DbAdapter implementation for Oracle RDBMS . Sample connection settings to use with Oracle are shown below:

          test-oracle.jdbc.username = test
          test-oracle.jdbc.password = secret
          test-oracle.jdbc.url = jdbc:oracle:thin:@//192.168.0.20:1521/ora1 
          test-oracle.jdbc.driver = oracle.jdbc.driver.OracleDriver
 

Field Summary

Fields

Modifier and Type	Field and Description
protected static boolean	initDone
static String	NEW_BLOB_FUNCTION
static String	NEW_CLOB_FUNCTION
static String	ORACLE_BLOB
static String	ORACLE_CLOB
static String	ORACLE_FLOAT
static String	ORACLE_NCLOB
protected static int	oracleCursorType
protected static boolean	supportsOracleLOB
static String	TRIM_FUNCTION

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

batchQueryBuilderFactory, caseInsensitiveCollations, ejbqlTranslatorFactory, extendedTypes, logger, quotingStrategy, resourceLocator, supportsBatchUpdates, supportsGeneratedKeys, supportsUniqueConstraints, typesHandler

Constructor Summary

Constructors

Constructor and Description
OracleAdapter(RuntimeProperties runtimeProperties, List<ExtendedType> defaultExtendedTypes, List<ExtendedType> userExtendedTypes, List<ExtendedTypeFactory> extendedTypeFactories, ResourceLocator resourceLocator)

Method Summary

Methods

Modifier and Type	Method and Description
void	bindParameter(PreparedStatement statement, Object object, int pos, int sqlType, int scale) Binds an object value to PreparedStatement's numbered parameter.
DbAttribute	buildAttribute(String name, String typeName, int type, int size, int scale, boolean allowNulls) Fixes some reverse engineering problems.
protected void	configureExtendedTypes(ExtendedTypeMap map) Installs appropriate ExtendedTypes as converters for passing values between JDBC and Java layers.
protected EJBQLTranslatorFactory	createEJBQLTranslatorFactory() Creates and returns an EJBQLTranslatorFactory used to generate visitors for EJBQL to SQL translations.
protected PkGenerator	createPkGenerator() Creates and returns a primary key generator.
Collection<String>	dropTableStatements(DbEntity table) Returns a query string to drop a table corresponding to ent DbEntity.
SQLAction	getAction(Query query, DataNode node) Uses OracleActionBuilder to create the right action.
static int	getOracleCursorType() Returns an Oracle JDBC extension type defined in oracle.jdbc.driver.OracleTypes.CURSOR.
QualifierTranslator	getQualifierTranslator(QueryAssembler queryAssembler) Returns a trimming translator.
protected static void	initDriverInformation()
static boolean	isSupportsOracleLOB()
MergerFactory	mergerFactory()

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

createFkConstraint, createQuotingStrategy, createTable, createTableAppendColumn, createTableAppendPKClause, createUniqueConstraint, externalTypesForJdbcType, findResource, getBatchQueryBuilderFactory, getBatchTerminator, getEjbqlTranslatorFactory, getExtendedTypes, getJdbcEventLogger, getPkGenerator, getQuotingStrategy, getQuotingStrategy, getType, initExtendedTypes, setBatchQueryBuilderFactory, setEjbqlTranslatorFactory, setPkGenerator, setSupportsBatchUpdates, setSupportsGeneratedKeys, setSupportsUniqueConstraints, sizeAndPrecision, supportsBatchUpdates, supportsGeneratedKeys, supportsUniqueConstraints, tableTypeForTable, tableTypeForView, typeSupportsLength, unwrap

Methods inherited from class java.lang.Object

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

Field Detail

ORACLE_FLOAT

public static final String ORACLE_FLOAT

See Also:

Constant Field Values

ORACLE_BLOB

public static final String ORACLE_BLOB

See Also:

Constant Field Values

ORACLE_CLOB

public static final String ORACLE_CLOB

See Also:

Constant Field Values

ORACLE_NCLOB

public static final String ORACLE_NCLOB

See Also:

Constant Field Values

TRIM_FUNCTION

public static final String TRIM_FUNCTION

See Also:

Constant Field Values

NEW_CLOB_FUNCTION

public static final String NEW_CLOB_FUNCTION

See Also:

Constant Field Values

NEW_BLOB_FUNCTION

public static final String NEW_BLOB_FUNCTION

See Also:

Constant Field Values

initDone

protected static boolean initDone

oracleCursorType

protected static int oracleCursorType

supportsOracleLOB

protected static boolean supportsOracleLOB

Constructor Detail

OracleAdapter

public OracleAdapter(RuntimeProperties runtimeProperties,
             List<ExtendedType> defaultExtendedTypes,
             List<ExtendedType> userExtendedTypes,
             List<ExtendedTypeFactory> extendedTypeFactories,
             ResourceLocator resourceLocator)

Method Detail

initDriverInformation

protected static void initDriverInformation()

isSupportsOracleLOB

public static boolean isSupportsOracleLOB()

getOracleCursorType

public static int getOracleCursorType()

Returns an Oracle JDBC extension type defined in oracle.jdbc.driver.OracleTypes.CURSOR. This value is determined from Oracle driver classes via reflection in runtime, so that Cayenne code has no compile dependency on the driver. This means that calling this method when the driver is not available will result in an exception.

createEJBQLTranslatorFactory

protected EJBQLTranslatorFactory createEJBQLTranslatorFactory()

Description copied from class: JdbcAdapter

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

Overrides:

createEJBQLTranslatorFactory in class JdbcAdapter

Since:

3.0

configureExtendedTypes

protected void configureExtendedTypes(ExtendedTypeMap map)

Installs appropriate ExtendedTypes as converters for passing values between JDBC and Java layers.

Overrides:

configureExtendedTypes in class JdbcAdapter

createPkGenerator

protected PkGenerator createPkGenerator()

Creates and returns a primary key generator. Overrides superclass implementation to return an instance of OraclePkGenerator.

Overrides:

createPkGenerator in class JdbcAdapter

dropTableStatements

public Collection<String> dropTableStatements(DbEntity table)

Returns a query string to drop a table corresponding to ent DbEntity. Changes superclass behavior to drop all related foreign key constraints.

Specified by:

dropTableStatements in interface DbAdapter

Overrides:

dropTableStatements in class JdbcAdapter

Since:

3.0

bindParameter

public void bindParameter(PreparedStatement statement,
                 Object object,
                 int pos,
                 int sqlType,
                 int scale)
                   throws SQLException,
                          Exception

Description copied from interface: DbAdapter

Binds an object value to PreparedStatement's numbered parameter.

Specified by:

bindParameter in interface DbAdapter

Overrides:

bindParameter in class JdbcAdapter

Throws:

SQLException

Exception

buildAttribute

public DbAttribute buildAttribute(String name,
                         String typeName,
                         int type,
                         int size,
                         int scale,
                         boolean allowNulls)

Fixes some reverse engineering problems. Namely if a columns is created as DECIMAL and has non-positive precision it is converted to INTEGER.

Specified by:

buildAttribute in interface DbAdapter

Overrides:

buildAttribute in class JdbcAdapter

Parameters:

name - database column name

typeName - database specific type name, may be used as a hint to determine the right JDBC type.

type - JDBC column type

size - database column size (ignored if less than zero)

scale - database column scale, i.e. the number of decimal digits (ignored if less than zero)

allowNulls - database column nullable parameter

getQualifierTranslator

public QualifierTranslator getQualifierTranslator(QueryAssembler queryAssembler)

Returns a trimming translator.

Specified by:

getQualifierTranslator in interface DbAdapter

Overrides:

getQualifierTranslator in class JdbcAdapter

getAction

public SQLAction getAction(Query query,
                  DataNode node)

Uses OracleActionBuilder to create the right action.

Specified by:

getAction in interface DbAdapter

Overrides:

getAction in class JdbcAdapter

Since:

1.2

mergerFactory

public MergerFactory mergerFactory()

Specified by:

mergerFactory in interface DbAdapter

Overrides:

mergerFactory in class JdbcAdapter