gov.usda.gdpc.database
Class NullDatabaseMapping

java.lang.Object
  gov.usda.gdpc.database.AbstractDatabaseMapping
      gov.usda.gdpc.database.NullDatabaseMapping

All Implemented Interfaces:

DatabaseMapping

public final class NullDatabaseMapping

extends AbstractDatabaseMapping

Author:

terryc

Field Summary

Fields inherited from class gov.usda.gdpc.database.AbstractDatabaseMapping

myProperty

Constructor Summary

NullDatabaseMapping(Property property)
NullDatabaseMapping Constructor.

Method Summary

SQLStatements	getDistinctSQL() Returns the SQL statements required to get the distinct values for the property associated with this mapping.
java.util.List	getJavaObjects(java.sql.ResultSet rs, ExtraInfo extraInfo) Gets the data from the given result set as Java objects.
java.lang.String	getSQLSubString(Filter filter, ExtraInfo extraInfo) Gets the SQL sub-string based on the given filter.
java.lang.String	toString() Returns the string representation of this database mapping.

Methods inherited from class gov.usda.gdpc.database.AbstractDatabaseMapping

getProperty

Methods inherited from class java.lang.Object

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

Constructor Detail

NullDatabaseMapping

public NullDatabaseMapping(Property property)

NullDatabaseMapping Constructor.

Parameters:

property - associated property

Method Detail

getSQLSubString

public java.lang.String getSQLSubString(Filter filter,
                                        ExtraInfo extraInfo)

Gets the SQL sub-string based on the given filter.

Specified by:

getSQLSubString in interface DatabaseMapping

Overrides:

getSQLSubString in class AbstractDatabaseMapping

Parameters:

filter - filter

extraInfo - this is extra information that can be used by this database mapping to generate the SQL.

Returns:

SQL sub-string

getJavaObjects

public java.util.List getJavaObjects(java.sql.ResultSet rs,
                                     ExtraInfo extraInfo)
                              throws java.sql.SQLException

Gets the data from the given result set as Java objects. The actual type of objects returned will match what's specified by the property associated with this mapping.

Specified by:

getJavaObjects in interface DatabaseMapping

Overrides:

getJavaObjects in class AbstractDatabaseMapping

Parameters:

rs - result set

extraInfo - this is extra information that can be used by this database mapping to generate the Java objects.

Returns:

list of converted data

Throws:

java.sql.SQLException

getDistinctSQL

public SQLStatements getDistinctSQL()

Returns the SQL statements required to get the distinct values for the property associated with this mapping.

Specified by:

getDistinctSQL in interface DatabaseMapping

Overrides:

getDistinctSQL in class AbstractDatabaseMapping

Returns:

empty SQL statements

toString

public java.lang.String toString()

Returns the string representation of this database mapping.

Overrides:

toString in class AbstractDatabaseMapping

Returns:

string representation