adql.db

Interface DBColumn

All Known Implementing Classes:

DBCommonColumn, DefaultDBColumn, TAPColumn

public interface DBColumn

Definition of a valid target column.

This column can be used in an ADQL query with its ADQL name (getADQLName()) and corresponds to a real column in the "database" with its DB name (getDBName()).

Version:

1.4 (07/2016)

Author:

Grégory Mantelet (CDS;ARI)

Method Summary

Modifier and Type	Method and Description
DBColumn	copy(java.lang.String dbName, java.lang.String adqlName, DBTable dbTable) Makes a copy of this instance of DBColumn.
java.lang.String	getADQLName() Gets the name of this column (without any prefix and double-quotes).
DBType	getDatatype() Get the type of this column (as closed as possible from the "database" type).
java.lang.String	getDBName() Gets the name of this column in the "database".
DBTable	getTable() Gets the table which contains this DBColumn.

Method Detail

getADQLName

java.lang.String getADQLName()

Gets the name of this column (without any prefix and double-quotes).

Returns:

Its ADQL name.

getDBName

java.lang.String getDBName()

Gets the name of this column in the "database".

Returns:

Its DB name.

getDatatype

DBType getDatatype()

Get the type of this column (as closed as possible from the "database" type).

Note: The returned type should be as closed as possible from a type listed by the IVOA in the TAP protocol description into the section UPLOAD.

Returns:

Its type.

Since:

1.3

getTable

DBTable getTable()

Gets the table which contains this DBColumn.

Returns:

Its table or null if no table is specified.

copy

DBColumn copy(java.lang.String dbName,
              java.lang.String adqlName,
              DBTable dbTable)

Makes a copy of this instance of DBColumn.

Parameters:

dbName - Its new DB name.

adqlName - Its new ADQL name.

dbTable - Its new table.

Returns:

A modified copy of this DBColumn.