Package org.fluentlenium.utils

Class Preconditions

java.lang.Object

org.fluentlenium.utils.Preconditions

public final class Preconditions
extends Object

Utility methods for validating objects' status.

Method Summary

Modifier and Type	Method	Description
static <T> T	checkArgument(T object, String message)	Validates if the argument object is null, and throws an IllegalArgumentException if it is.
static String	checkArgumentBlank(String object, String message)	Validates if the argument String is blank, and throws an IllegalArgumentException if it is.
static <T> T	checkState(T object, String message)	Validates if the argument object is null, and throws an IllegalStateException if it is.

Methods inherited from class java.lang.Object

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

Method Detail

checkArgument

public static <T> T checkArgument(T object,
                                  String message)

Validates if the argument object is null, and throws an IllegalArgumentException if it is.

Type Parameters:

T - object to check

Parameters:

object - the object to validate

message - the error message to throw the exception with

Returns:

the argument object if it is not null

Throws:

IllegalArgumentException - if the argument object is null

checkArgumentBlank

public static String checkArgumentBlank(String object,
                                        String message)

Validates if the argument String is blank, and throws an IllegalArgumentException if it is.

Parameters:

object - the object to validate

message - the error message to throw the exception with

Returns:

the argument String if it is not blank

Throws:

IllegalArgumentException - if the argument String is blank

checkState

public static <T> T checkState(T object,
                               String message)

Validates if the argument object is null, and throws an IllegalStateException if it is.

Type Parameters:

T - object to check

Parameters:

object - the object to validate

message - the error message to throw the exception with

Returns:

the argument object if it is not null

Throws:

IllegalStateException - if the argument object is null