lengthvalidator.java

来自「用java 实现的IE browser适合于学者」· Java 代码 · 共 32 行

/*
 * Created on 2005-1-5
 *
 * TODO To change the template for this generated file go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
package com.hnjchina.dialogs;

import org.eclipse.jface.dialogs.IInputValidator;

/**
 * @author limeiyong
 *
 * TODO To change the template for this generated type comment go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
public class LengthValidator implements IInputValidator {

	/* (non-Javadoc)
	 * @see org.eclipse.jface.dialogs.IInputValidator#isValid(java.lang.String)
	 */
	public String isValid(String newText) {
	    int len = newText.length();
	    // Determine if input is too short or too long
	    if (len < 5) return "Too short";
	    if (len > 8) return "Too long";
	    // Input must be OK
	    return null;
	}

}