DBColumn

All Known Implementing Classes:

DBCommonColumn, DefaultDBColumn
```
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

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	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.