com.ongres.scram.common.util

Class Preconditions

java.lang.Object

com.ongres.scram.common.util.Preconditions

public class Preconditions
extends Object

Simple methods similar to Precondition class. Avoid importing full library.

Constructor Summary

Constructors

Constructor and Description
Preconditions()

Method Summary

Modifier and Type	Method and Description
static void	checkArgument(boolean check, String valueName) Checks that the argument is valid, based in a check boolean condition.
static String	checkNotEmpty(String value, String valueName) Checks that the String is not null and not empty
static <T> T	checkNotNull(T value, String valueName) Checks that the argument is not null.
static int	gt0(int value, String valueName) Checks that the integer argument is positive.

Methods inherited from class java.lang.Object

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

Constructor Detail

Preconditions

public Preconditions()

Method Detail

checkNotNull

public static <T> T checkNotNull(T value,
                                 String valueName)
                          throws IllegalArgumentException

Checks that the argument is not null.

Type Parameters:

T - The type of the value

Parameters:

value - The value to be checked

valueName - The name of the value that is checked in the method

Returns:

The same value passed as argument

Throws:

IllegalArgumentException - If value is null

checkNotEmpty

public static String checkNotEmpty(String value,
                                   String valueName)
                            throws IllegalArgumentException

Checks that the String is not null and not empty

Parameters:

value - The String to check

valueName - The name of the value that is checked in the method

Returns:

The same String passed as argument

Throws:

IllegalArgumentException - If value is null or empty

checkArgument

public static void checkArgument(boolean check,
                                 String valueName)
                          throws IllegalArgumentException

Checks that the argument is valid, based in a check boolean condition.

Parameters:

check - The boolean check

valueName - The name of the value that is checked in the method

Throws:

IllegalArgumentException

gt0

public static int gt0(int value,
                      String valueName)
               throws IllegalArgumentException

Checks that the integer argument is positive.

Parameters:

value - The value to be checked

valueName - The name of the value that is checked in the method

Returns:

The same value passed as argument

Throws:

IllegalArgumentException - If value is null