net.sf.dewdrop.sql.dialect
Class Dialect

java.lang.Object
  net.sf.dewdrop.sql.dialect.Dialect

Direct Known Subclasses:

GenericDialect

public abstract class Dialect

extends Object

Author:

Les Hazlewood

Field Summary

protected static String	DEFAULT_CHAR_TOKEN
static Dialect	DEFAULT_DIALECT
protected static String	DEFAULT_NUMERIC_TOKEN
protected static String	DEFAULT_VARBINARY_TOKEN
protected static String	DEFAULT_VARCHAR_TOKEN

Constructor Summary

protected

Dialect()

Method Summary

boolean	equals(Object o)
String	getCloseQuote() Returns the closing delimiter for a quoted literal string.
static Dialect	getDialect(String dialectName)
String	getName() Returns the name of this dialect.
String	getOpenQuote() Returns the opening delimiter for a quoted literal string.
String	getTypeString(SqlDataType type) Get the name of the database type associated with the given SqlDataType.
String	getTypeString(SqlDataType type, int length, int precision) Get the name of the database type associated with the given SqlDataType.
protected void	registerColumnType(SqlDataType type, int capacity, String name) Subclasses register a typename for the given type code and maximum column length.
protected void	registerColumnType(SqlDataType type, String name) Subclasses register a typename for the given type code.
boolean	supportsSequences() Returns whether or not this SQL Dialect supports sequences.
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_DIALECT

public static final Dialect DEFAULT_DIALECT

DEFAULT_CHAR_TOKEN

protected static final String DEFAULT_CHAR_TOKEN

See Also:

Constant Field Values

DEFAULT_VARCHAR_TOKEN

protected static final String DEFAULT_VARCHAR_TOKEN

See Also:

Constant Field Values

DEFAULT_VARBINARY_TOKEN

protected static final String DEFAULT_VARBINARY_TOKEN

See Also:

Constant Field Values

DEFAULT_NUMERIC_TOKEN

protected static final String DEFAULT_NUMERIC_TOKEN

See Also:

Constant Field Values

Constructor Detail

Dialect

protected Dialect()

Method Detail

getName

public String getName()

Returns the name of this dialect.

getTypeString

public String getTypeString(SqlDataType type)
                     throws DialectException

Get the name of the database type associated with the given SqlDataType.

Parameters:

type - Sql data type

Returns:

the database type string for the specified type

Throws:

DialectException - if this Dialect does not support the specified type.

getTypeString

public String getTypeString(SqlDataType type,
                            int length,
                            int precision)
                     throws DialectException

Get the name of the database type associated with the given SqlDataType.

Parameters:

type - Sql data type

length - the length or size of the column

precision - the precision/scale of the column

Returns:

the database type name

Throws:

DialectException

registerColumnType

protected void registerColumnType(SqlDataType type,
                                  int capacity,
                                  String name)

Subclasses register a typename for the given type code and maximum column length. $l in the type name with be replaced by the column length (if appropriate).

Parameters:

type - Sql data type

capacity - maximum length of database type

name - the database type name

registerColumnType

protected void registerColumnType(SqlDataType type,
                                  String name)

Subclasses register a typename for the given type code. $l in the type name with be replaced by the column length (if appropriate).

Parameters:

type - Sql data type

name - the database type name

supportsSequences

public boolean supportsSequences()

Returns whether or not this SQL Dialect supports sequences.

getOpenQuote

public String getOpenQuote()

Returns the opening delimiter for a quoted literal string.

getCloseQuote

public String getCloseQuote()

Returns the closing delimiter for a quoted literal string.

equals

public boolean equals(Object o)

getDialect

public static Dialect getDialect(String dialectName)

toString

public String toString()