Package com.castlabs.utils

Class Validate

java.lang.Object
com.castlabs.utils.Validate
public class Validate extends Object
Helper class that can be used to validate input.

  • Constructor Summary

    Constructors
    Constructor
    Description
    Validate()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    static boolean
    areEqual(Bundle b1, Bundle b2)
    Recursively check the bundles for equality
    static <T> T
    instanceOf(Throwable cause, Class<T> cl)
    Search for the specific cause recursively
    static void
    isTrue(boolean expression, String message)
    Validate that the argument condition is true; otherwise throwing an exception with the specified message.
    static void
    notNull(Object object)
    Validate that the specified argument is not null; otherwise throwing an exception.
    static void
    notNull(Object object, String message)
    Validate that the specified argument is not null; otherwise throwing an exception with the specified message.

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • Validate

      public Validate()

  • Method Details

    • notNull

      public static void notNull(Object object)

      Validate that the specified argument is not null; otherwise throwing an exception. 

      Validate.notNull(myObject);

      The message of the exception is "The validated object is null".

      Parameters:
      object - the object to check
      Throws:
      IllegalArgumentException - if the object is null

    • notNull

      public static void notNull(Object object, String message)

      Validate that the specified argument is not null; otherwise throwing an exception with the specified message. 

      Validate.notNull(myObject, "The object must not be null");
      Parameters:
      object - the object to check
      message - the exception message if invalid

    • isTrue

      public static void isTrue(boolean expression, String message)

      Validate that the argument condition is true; otherwise throwing an exception with the specified message. This method is useful when validating according to an arbitrary boolean expression, such as validating a primitive number or using your own custom validation expression.

       Validate.isTrue( (i > 0), "The value must be greater than zero");
 Validate.isTrue( myObject.isOk(), "The object is not OK");
      Parameters:
      expression - the boolean expression to check
      message - the exception message if invalid
      Throws:
      IllegalArgumentException - if expression is false

    • areEqual

      public static boolean areEqual(@Nullable Bundle b1, @Nullable Bundle b2)

      Recursively check the bundles for equality

      Parameters:
      b1 - the Bundle to compare
      b2 - the Bundle to compare
      Returns:
      true if the bundles are identical or false otherwise

    • instanceOf

      @Nullable public static <T> T instanceOf(@Nullable Throwable cause, @NonNull Class<T> cl)
      Search for the specific cause recursively
      Type Parameters:
      T - Specific cause type to search for
      Parameters:
      cause - Specified container cause
      cl - Specific cause class to search for
      Returns:
      Specific cause instance if it was found in the container cause, otherwise null