gravsphcolldemo
Class Vector3DInputVerifier

java.lang.Object
  |
  +--javax.swing.InputVerifier
        |
        +--gravsphcolldemo.Vector3DInputVerifier

public class Vector3DInputVerifier

extends javax.swing.InputVerifier

This is a subclass of InputVerifier that can be used to validate a JTextField. The contents are valid if the text can be interpreted as a Vector3D (using the Vector3D constructor taking a String).

Version:

1.0

Author:

Miklos Reiter

Constructor Summary

Vector3DInputVerifier()
Constructs a new Vector3DInputVerifier object.

Vector3DInputVerifier(boolean emptyEntryAccepted)
Constructs a new Vector3DInputVerifier object.

Method Summary

boolean	getAcceptEmpty() Is the empty string accepted as a valid entry?
void	setAcceptEmpty(boolean emptyEntryAccepted) Sets whether the empty string should be accepted as valid.
boolean	shouldYieldFocus(javax.swing.JComponent input) Displays a message box complaining to the user and informing them briefly of the format of a Vector3D, if the input is invalid, in addition to calling the inherited method.
static boolean	validVector3D(java.lang.String s) Returns true if the argument represents a valid Vector3D.
boolean	verify(javax.swing.JComponent input) Casts the argument as a JTextField, then parses it as a Vector3D.

Methods inherited from class java.lang.Object

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

Constructor Detail

Vector3DInputVerifier

public Vector3DInputVerifier()

Constructs a new Vector3DInputVerifier object. This verifier will accept the empty string as a valid entry.

Vector3DInputVerifier

public Vector3DInputVerifier(boolean emptyEntryAccepted)

Constructs a new Vector3DInputVerifier object.

Method Detail

getAcceptEmpty

public boolean getAcceptEmpty()

Is the empty string accepted as a valid entry?

setAcceptEmpty

public void setAcceptEmpty(boolean emptyEntryAccepted)

Sets whether the empty string should be accepted as valid.

shouldYieldFocus

public boolean shouldYieldFocus(javax.swing.JComponent input)

Displays a message box complaining to the user and informing them briefly of the format of a Vector3D, if the input is invalid, in addition to calling the inherited method.

Overrides:

shouldYieldFocus in class javax.swing.InputVerifier

verify

public boolean verify(javax.swing.JComponent input)

Casts the argument as a JTextField, then parses it as a Vector3D. Returns true if it succeeds, false otherwise. Calls validVector3D to do this. True is also returned if s is the empty String and getAcceptEmpty is true.

Overrides:

verify in class javax.swing.InputVerifier

validVector3D

public static boolean validVector3D(java.lang.String s)

Returns true if the argument represents a valid Vector3D. Uses the constructor of the Vector3D class taking a String.