com.arsdigita.acs
Class SingleSelection

java.lang.Object
  |
  +--com.arsdigita.acs.SingleSelection

All Implemented Interfaces:

DataSource

public class SingleSelection

extends java.lang.Object

implements DataSource

Represents a single generic object pulled in from the database.

Field Summary

static java.lang.String

cvsId

Constructor Summary

SingleSelection(java.util.Map map)
Generates a single-row selection from the given Map object.

SingleSelection(java.lang.Object obj)

SingleSelection(com.arsdigita.db.SimpleResultSet srs)
Generates a single-row selection from the current row in the result set.

Method Summary

boolean	contains(java.lang.String key) Returns true if column is a valid column in this datasource; returns false otherwise.
java.lang.String	get(java.lang.String key) Returns the value of the column named by key.
java.lang.String[]	keys() Returns a list of valid keys in this datasource, for use with get().

Methods inherited from class java.lang.Object

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

Field Detail

cvsId

public static final java.lang.String cvsId

Constructor Detail

SingleSelection

public SingleSelection(java.lang.Object obj)
                throws java.sql.SQLException

SingleSelection

public SingleSelection(com.arsdigita.db.SimpleResultSet srs)
                throws java.sql.SQLException

Generates a single-row selection from the current row in the result set. Requires that next() has been called at least once on rs.

SingleSelection

public SingleSelection(java.util.Map map)

Generates a single-row selection from the given Map object.

Method Detail

get

public java.lang.String get(java.lang.String key)
                     throws DataSourceException

Returns the value of the column named by key. Returns null if the column value is null.

Specified by:

get in interface DataSource

Throws:

InvalidKeyException - if key is not found.

contains

public boolean contains(java.lang.String key)
                 throws DataSourceException

Description copied from interface: DataSource

Returns true if column is a valid column in this datasource; returns false otherwise.

Specified by:

contains in interface DataSource

keys

public java.lang.String[] keys()

Description copied from interface: DataSource

Returns a list of valid keys in this datasource, for use with get().

Specified by:

keys in interface DataSource