net.sf.dewdrop.sql.dialect
Class TypeMap

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

public class TypeMap

extends Object

This class maps a type to names. Associations may be marked with a capacity. Calling the get() method with a type and actual size n will return the associated name with smallest capacity >= n, if available and an unmarked default type otherwise. Eg, setting

 	names.put(type,        "TEXT" );
 	names.put(type,   255, "VARCHAR($l)" );
 	names.put(type, 65534, "LONGVARCHAR($l)" );
 

will give you back the following:

  names.get(type)         // --> "TEXT" (default)
  names.get(type,    100) // --> "VARCHAR(100)" (100 is in [0:255])
  names.get(type,   1000) // --> "LONGVARCHAR(1000)" (1000 is in [256:65534])
  names.get(type, 100000) // --> "TEXT" (default)
 

On the other hand, simply putting

 	names.put(type, "VARCHAR($l)" );
 

would result in

  names.get(type)        // --> "VARCHAR($l)" (will cause trouble)
  names.get(type, 100)   // --> "VARCHAR(100)"
  names.get(type, 10000) // --> "VARCHAR(10000)"
 

Since:

6 January 2005

Author:

Christoph Beck, Les Hazlewood

Constructor Summary

TypeMap()

Method Summary

String	get(SqlDataType type) Retrieve the default type string for the specified SqlDataType.
String	get(SqlDataType type, int size, int precision) get type name for specified type and size
void	put(SqlDataType type, int capacity, String value) set a type name for specified type key and capacity
void	put(SqlDataType type, String value) set a default type name for specified type key

Methods inherited from class java.lang.Object

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

Constructor Detail

TypeMap

public TypeMap()

Method Detail

get

public String get(SqlDataType type)

Retrieve the default type string for the specified SqlDataType.

Parameters:

type - the type key

Returns:

the default type string associated with the specified key, or null if there is no default Dialect type string for the specified key.

get

public String get(SqlDataType type,
                  int size,
                  int precision)

get type name for specified type and size

Parameters:

type - the type key

size - the (maximum) type size/length

Returns:

the associated name with smallest capacity >= size, if available and the default type string otherwise ( or null if there is no default type string ).

put

public void put(SqlDataType type,
                int capacity,
                String value)

set a type name for specified type key and capacity

Parameters:

type - the type key

put

public void put(SqlDataType type,
                String value)

set a default type name for specified type key

Parameters:

type - the type key