TerminalAuthenticator (Starjava Table API)

java.lang.Object
- uk.ac.starlink.table.jdbc.TerminalAuthenticator

All Implemented Interfaces:

JDBCAuthenticator
```
public class TerminalAuthenticator
extends java.lang.Object
implements JDBCAuthenticator
```
Provides JDBC authentication using the terminal; assumes that someone is sitting at System.in.

Constructor Summary

Constructors
Constructor	Description
`TerminalAuthenticator()`	Constructs a new authenticator which uses System.err for prompting.
`TerminalAuthenticator(java.io.PrintStream promptStrm)`	Constructs a new authenticator with a given stream to use for writing prompts.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`java.lang.String[]`	`authenticate()`	Obtains username and password.
`java.lang.String`	`readPassword()`	Prompts to the prompt stream and reads the password from standard input.
`java.lang.String`	`readUser()`	Prompts to the prompt stream and reads the user name from standard input.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - TerminalAuthenticator
```
public TerminalAuthenticator(java.io.PrintStream promptStrm)
```
    Constructs a new authenticator with a given stream to use for writing prompts.
    
    Parameters:
    
    promptStrm - output stream for prompting
  - TerminalAuthenticator
```
public TerminalAuthenticator()
```
    Constructs a new authenticator which uses System.err for prompting.
- Method Detail
  - authenticate
```
public java.lang.String[] authenticate()
                                throws java.io.IOException
```
    Description copied from interface: JDBCAuthenticator
    
    Obtains username and password. The return value is a two-element array containing the username and password to be used, in that order. Either or both of these may be null.
    
    Specified by:
    
    authenticate in interface JDBCAuthenticator
    
    Returns:
    
    String[]{username,password}
    
    Throws:
    
    java.io.IOException - if there is some error
  - readUser
```
public java.lang.String readUser()
                          throws java.io.IOException
```
    Prompts to the prompt stream and reads the user name from standard input.
    
    Returns:
    
    user name obtained from user
    
    Throws:
    
    java.io.IOException
  - readPassword
```
public java.lang.String readPassword()
                              throws java.io.IOException
```
    Prompts to the prompt stream and reads the password from standard input.
    
    Returns:
    
    password obtained from user
    
    Throws:
    
    java.io.IOException

Class TerminalAuthenticator

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

TerminalAuthenticator

TerminalAuthenticator

Method Detail

authenticate

readUser

readPassword