Constructor Detail

• InputHelper

  public InputHelper(java.lang.Class c)

  Creates a new InputHelper for the specified class. The package name for the specified class will be used to locate an appropriate storage location in the user preferences.

  Parameters:

  c - the class to create a InputHelper for

• InputHelper

  public InputHelper()

  Creates a new InputHelper with the default storage location (determined by the calling class's package name)

Method Detail

• select

  public java.lang.String select(java.lang.String key,
                        java.lang.String[] select,
                        java.lang.String name,
                        boolean verify)

  Selects the value for a key.

  Parameters:

  key - the key to select a value for

  select - the list of available values

  name - a display name for the key

  verify - if true, and no value is found, lets user select a value

  Returns:

  returns the value for the key.

• select

  public java.lang.String select(java.lang.String key,
                        java.util.List<Factory> select,
                        java.lang.String name,
                        boolean verify)

  Selects the value for a key.

  Parameters:

  key - the key to get a value for

  select - the list of available values

  name - the display name for the key

  verify - if true, and no value is found, lets user select a value

  Returns:

  returns the value for the key.

• getKey

  public java.lang.String getKey(java.lang.String key)

  Gets the value for a key.

  Parameters:

  key - the key to get a value for

  Returns:

  returns the value for the key

• getInput

  public int getInput(boolean allowEnter)
               throws java.io.IOException

  Gets a integer from user. The assumption is that this value should be a non-zero positive integer, that is the user selects a value from a list starting with one. If the input is an empty string, 0 is returned. If an IO error occurs, -1 is returned.

  Returns:

  returns the integer value suppled by the user on the command line.

  Throws:

  java.io.IOException - if IO fails.

• getDouble

  public double getDouble(java.lang.String msg,
                 java.lang.String key,
                 boolean verify)
                   throws java.io.IOException

  Throws:

  java.io.IOException

• getBoolean

  public boolean getBoolean(java.lang.String msg,
                   java.lang.String key,
                   boolean verify)
                     throws java.io.IOException

  Throws:

  java.io.IOException

• clearSettings

  public void clearSettings()
                     throws java.util.prefs.BackingStoreException

  Clears the settings associated with this object from storage.

  Throws:

  java.util.prefs.BackingStoreException - if this operation cannot be completed due to a failure in the backing store, or inability to communicate with it.

  java.lang.IllegalStateException - if the associated node (or an ancestor) has been removed with the removeNode() method.