ru.vyarus.dropwizard.guice.module.context.unique

Class LegacyModeDuplicatesDetector

java.lang.Object

ru.vyarus.dropwizard.guice.module.context.unique.LegacyModeDuplicatesDetector

All Implemented Interfaces:

DuplicateConfigDetector

public class LegacyModeDuplicatesDetector
extends java.lang.Object
implements DuplicateConfigDetector

Duplicates detector, implementing legacy guicey behaviour: only one instance of class is allowed. It could be used during migrations from previous guicey versions (when new behaviour is not profitable because too much of current logic assumes duplicates eviction).

Since:

03.07.2019

Constructor Summary

Constructors

Constructor and Description
LegacyModeDuplicatesDetector()

Method Summary

Modifier and Type	Method and Description
java.lang.Object	getDuplicateItem(java.util.List<java.lang.Object> registered, java.lang.Object newItem) Called every time when configured object (guicey bundle or guice module) of the same type is already registered.

Methods inherited from class java.lang.Object

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

Constructor Detail

LegacyModeDuplicatesDetector

public LegacyModeDuplicatesDetector()

Method Detail

getDuplicateItem

public java.lang.Object getDuplicateItem(java.util.List<java.lang.Object> registered,
                                         java.lang.Object newItem)

Description copied from interface: DuplicateConfigDetector

Called every time when configured object (guicey bundle or guice module) of the same type is already registered. Note that method is called only if new instance is not equal to any registered instances of the same type. Method must return duplicate object from already registered.

For example, if 3 or more instances of the same type are registered then method would be called for each new configured instance (in case of 3 registrations - 2 method calls, assuming that instances are not equal).

Specified by:

getDuplicateItem in interface DuplicateConfigDetector

Parameters:

registered - already registered items

newItem - new item to check

Returns:

duplicate object from already registered (to mark this one as duplicate to already registered)