Package com.github.mjeanroy.dbunit.commons.lang

Class PreConditions

java.lang.Object

com.github.mjeanroy.dbunit.commons.lang.PreConditions

public final class PreConditions
extends Object

Static PreConditions Utilities.

Method Summary

Modifier and Type	Method	Description
static void	checkArgument(boolean condition, String message, Object... params)	Check argument condition and throw IllegalArgumentException if condition is false.
static char	notBlank(char value, String message, Object... params)	Ensure that given value is not blank.
static String	notBlank(String value, String message, Object... params)	Ensure that given value is not null, empty or blank.
static <T> T	notNull(T value, String message, Object... params)	Ensure that given value is not null.
static String	startsWith(String value, String prefix, String message, Object... params)	Ensure that given value is not null, empty or blank and starts with given prefix.

Methods inherited from class java.lang.Object

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

Method Detail

notNull

public static <T> T notNull(T value,
                            String message,
                            Object... params)

Ensure that given value is not null.

Type Parameters:

T - Type of value.

Parameters:

value - Value to check.

message - Error message.

params - Optional error message parameters.

Returns:

Value if it is not null.

Throws:

NullPointerException - If value is null.

notBlank

public static String notBlank(String value,
                              String message,
                              Object... params)

Ensure that given value is not null, empty or blank.

Parameters:

value - Value to check.

message - Error message.

params - Optional error message parameters.

Returns:

Value if it is not null, empty or blank.

Throws:

NullPointerException - If value is null.

IllegalArgumentException - If value is empty or blank.

notBlank

public static char notBlank(char value,
                            String message,
                            Object... params)

Ensure that given value is not blank.

Parameters:

value - Value to check.

message - Error message.

params - Optional error message parameters.

Returns:

Value if it is not null, empty or blank.

Throws:

NullPointerException - If value is null.

IllegalArgumentException - If value is empty or blank.

startsWith

public static String startsWith(String value,
                                String prefix,
                                String message,
                                Object... params)

Ensure that given value is not null, empty or blank and starts with given prefix.

Parameters:

value - Value to check.

prefix - The prefix to look for.

message - Error message.

params - Optional error message parameters.

Returns:

Value if it is not null, empty or blank.

Throws:

NullPointerException - If value is null.

IllegalArgumentException - If value is empty, blank, or does not start with prefix.

checkArgument

public static void checkArgument(boolean condition,
                                 String message,
                                 Object... params)

Check argument condition and throw IllegalArgumentException if condition is false.

Parameters:

condition - The result of the condition to verify.

message - Error message.

params - Optional error message parameters.