org.ofbiz.core.entity.jdbc.dbtype

Class AbstractDatabaseType

java.lang.Object

org.ofbiz.core.entity.jdbc.dbtype.AbstractDatabaseType

All Implemented Interfaces:

DatabaseType

Direct Known Subclasses:

AbstractPostgresDatabaseType, Oracle10GDatabaseType, SapDB76DatabaseType, SapDBDatabaseType, SimpleDatabaseType

public abstract class AbstractDatabaseType
extends Object
implements DatabaseType

Field Summary

Fields

Modifier and Type	Field and Description
protected static String	ALTER_TABLE_DROP_INDEX
protected static String	CHANGE_COLUMN_TYPE_CLAUSE_STRUCTURE_STANDARD_ALTER_COLUMN
protected static String	CHANGE_COLUMN_TYPE_CLAUSE_STRUCTURE_STANDARD_MODIFY
protected static String	DROP_INDEX_SCHEMA_DOT_INDEX
protected static String	DROP_INDEX_SCHEMA_DOT_TABLE_DOT_INDEX

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractDatabaseType(String name, String fieldTypeName, String[] productNamePrefix)
protected	AbstractDatabaseType(String name, String fieldTypeName, String[] productNamePrefix, int constraintNameClipLength)

Method Summary

Methods

Modifier and Type	Method and Description
String	getChangeColumnTypeSQL(String tableName, String columnName, String targetSqlType) Builds a DB-specific SQL statement to update a column's type.
protected String	getChangeColumnTypeStructure()
int	getConstraintNameClipLength()
String	getDropIndexSQL(String schemaName, String tableName, String indexName) Builds a DB-specific SQL statement for dropping index.
String	getDropIndexStructure()
String	getFieldTypeName()
String	getName()
String	getSchemaName(Connection con) Returns the name of the connected schema.
protected static boolean	isProductNameInPrefixList(String[] productNamePrefixes, String productName)
abstract boolean	matchesConnection(Connection con) Checks whether the connection object passed in matches the database type represented by this instance of the DatabaseType class.
protected boolean	productNameMatches(Connection con)
protected static boolean	productNamesMatch(String productNamePrefix, String testName)
protected void	registerWithFactory() Register this database type with DatabaseTypeFactory
String	toString()
protected boolean	versionGreaterThanOrEqual(Connection con, int majorVersion, int minorVersion)
protected static boolean	versionGreaterThanOrEqual(int major1, int minor1, int major2, int minor2) Compares two version numbers and returns true if the first version number is greater than the second
protected boolean	versionLessThanOrEqual(Connection con, int majorVersion, int minorVersion)

Methods inherited from class java.lang.Object

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

Field Detail

CHANGE_COLUMN_TYPE_CLAUSE_STRUCTURE_STANDARD_ALTER_COLUMN

protected static final String CHANGE_COLUMN_TYPE_CLAUSE_STRUCTURE_STANDARD_ALTER_COLUMN

See Also:

Constant Field Values

CHANGE_COLUMN_TYPE_CLAUSE_STRUCTURE_STANDARD_MODIFY

protected static final String CHANGE_COLUMN_TYPE_CLAUSE_STRUCTURE_STANDARD_MODIFY

See Also:

Constant Field Values

DROP_INDEX_SCHEMA_DOT_INDEX

protected static final String DROP_INDEX_SCHEMA_DOT_INDEX

See Also:

Constant Field Values

DROP_INDEX_SCHEMA_DOT_TABLE_DOT_INDEX

protected static final String DROP_INDEX_SCHEMA_DOT_TABLE_DOT_INDEX

See Also:

Constant Field Values

ALTER_TABLE_DROP_INDEX

protected static final String ALTER_TABLE_DROP_INDEX

See Also:

Constant Field Values

Constructor Detail

AbstractDatabaseType

protected AbstractDatabaseType(String name,
                    String fieldTypeName,
                    String[] productNamePrefix,
                    int constraintNameClipLength)

AbstractDatabaseType

protected AbstractDatabaseType(String name,
                    String fieldTypeName,
                    String[] productNamePrefix)

Method Detail

getName

public String getName()

Specified by:

getName in interface DatabaseType

Returns:

A human readable version of the database type name

getFieldTypeName

public String getFieldTypeName()

Specified by:

getFieldTypeName in interface DatabaseType

Returns:

The value that should be used for the field-type-name for a database of this type.

toString

public String toString()

Overrides:

toString in class Object

getSchemaName

public String getSchemaName(Connection con)

Description copied from interface: DatabaseType

Returns the name of the connected schema.

Specified by:

getSchemaName in interface DatabaseType

Parameters:

con - the connection for which to return the schema

Returns:

null if a schema name is not available

getConstraintNameClipLength

public int getConstraintNameClipLength()

Specified by:

getConstraintNameClipLength in interface DatabaseType

matchesConnection

public abstract boolean matchesConnection(Connection con)
                                   throws SQLException

Checks whether the connection object passed in matches the database type represented by this instance of the DatabaseType class.

Specified by:

matchesConnection in interface DatabaseType

Returns:

true if the Connection matches this DatabaseType instance.

Throws:

SQLException

registerWithFactory

protected void registerWithFactory()

Register this database type with DatabaseTypeFactory

See Also:

DatabaseTypeFactory.registerDatabaseType(DatabaseType)

versionGreaterThanOrEqual

protected static boolean versionGreaterThanOrEqual(int major1,
                                int minor1,
                                int major2,
                                int minor2)

Compares two version numbers and returns true if the first version number is greater than the second

Parameters:

major1 - First major version number for comparison

minor1 - First minor version number for comparison

major2 - Second major version number for comparison

minor2 - Second minor version number for comparison

Returns:

True if (major1, minor1) > (major2, minor2) otherwise false

productNamesMatch

protected static boolean productNamesMatch(String productNamePrefix,
                        String testName)

isProductNameInPrefixList

protected static boolean isProductNameInPrefixList(String[] productNamePrefixes,
                                String productName)

productNameMatches

protected boolean productNameMatches(Connection con)
                              throws SQLException

Throws:

SQLException

versionGreaterThanOrEqual

protected boolean versionGreaterThanOrEqual(Connection con,
                                int majorVersion,
                                int minorVersion)
                                     throws SQLException

Throws:

SQLException

versionLessThanOrEqual

protected boolean versionLessThanOrEqual(Connection con,
                             int majorVersion,
                             int minorVersion)
                                  throws SQLException

Throws:

SQLException

getChangeColumnTypeStructure

protected String getChangeColumnTypeStructure()

Returns:

a format string to compose an SQL query to change a column in DB.

getChangeColumnTypeSQL

public final String getChangeColumnTypeSQL(String tableName,
                            String columnName,
                            String targetSqlType)

Builds a DB-specific SQL statement to update a column's type.

Specified by:

getChangeColumnTypeSQL in interface DatabaseType

Parameters:

tableName - the name of the table to be changed.

columnName - the name of the column to be changed.

targetSqlType - the target SQL type of the column.

Returns:

the SQL text to change the column, or null, if not supported.

getDropIndexStructure

public String getDropIndexStructure()

Returns:

a format string to compose an SQL query to drop index in DB.

getDropIndexSQL

public String getDropIndexSQL(String schemaName,
                     String tableName,
                     String indexName)

Builds a DB-specific SQL statement for dropping index.

Specified by:

getDropIndexSQL in interface DatabaseType

Parameters:

schemaName - the of the schema containing table.

tableName - the name of the table to be changed.

indexName - the name of the index to be dropped.

Returns:

the SQL text to drop the index.