OVal: The simple validation framework for Java

OVal is the simple validation framework for Java. You can specify validation rules using annotations.

public class Person {
  @NotNull
  public String name;
}

Usage:

Validator v = new Validator();

Person p = new Person();
for(ConstraintViolation error: v.validate(p)){
  System.out.println(error.getMessage());
}

OVal can switch validation rules by profiles.

public class Person {
  @NotNull(profiles={"profile1"})
  public String name;
  
  @NotNull(profiles={"profile1", "profile2"})
  public String email;
}

Switch profiles like following:

// Enable all profiles
v.enableAllProfiles();
// Enable a specified profile
v.enableProfile("profile1");

// Disable all profiles
v.disableAllProfiles();
// Disable a specified profile
v.disableProfile("profile1");