org.axonframework.common

Class ObjectUtils

java.lang.Object

org.axonframework.common.ObjectUtils

public abstract class ObjectUtils
extends Object

Miscellaneous object utility methods

Method Summary

Modifier and Type	Method and Description
static <T extends CharSequence> T	getNonEmptyOrDefault(T instance, T defaultValue) Returns the given instance, if not null or of zero length, or otherwise the given defaultValue.
static <T> T	getOrDefault(T instance, Supplier<T> defaultProvider) Returns the given instance, if not null, or otherwise the value provided by defaultProvider.
static <T> T	getOrDefault(T instance, T defaultValue) Returns the given instance, if not null, or otherwise the given defaultValue.
static long	getRemainingOfDeadline(long deadline) Gets number of millis which are remaining of current deadline to be reached by System.currentTimeMillis().
static <T> Class<T>	nullSafeTypeOf(T instance)

Methods inherited from class java.lang.Object

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

Method Detail

getOrDefault

public static <T> T getOrDefault(T instance,
                                 Supplier<T> defaultProvider)

Returns the given instance, if not null, or otherwise the value provided by defaultProvider.

Type Parameters:

T - The type of value to return

Parameters:

instance - The value to return, if not null

defaultProvider - To provide the value, when instance is null

Returns:

instance if not null, otherwise the value provided by defaultProvider

getOrDefault

public static <T> T getOrDefault(T instance,
                                 T defaultValue)

Returns the given instance, if not null, or otherwise the given defaultValue.

Type Parameters:

T - The type of value to return

Parameters:

instance - The value to return, if not null

defaultValue - The value, when instance is null

Returns:

instance if not null, otherwise defaultValue

getNonEmptyOrDefault

public static <T extends CharSequence> T getNonEmptyOrDefault(T instance,
                                                              T defaultValue)

Returns the given instance, if not null or of zero length, or otherwise the given defaultValue.

Type Parameters:

T - The type of value to return

Parameters:

instance - The value to return, if not null

defaultValue - The value, when instance is null

Returns:

instance if not null, otherwise defaultValue

nullSafeTypeOf

public static <T> Class<T> nullSafeTypeOf(T instance)

getRemainingOfDeadline

public static long getRemainingOfDeadline(long deadline)

Gets number of millis which are remaining of current deadline to be reached by System.currentTimeMillis(). If deadline is passed, 0 will be returned.

Parameters:

deadline - deadline to be met

Returns:

number of millis to deadline