Package org.sdase.commons.server.dropwizard.metadata

Class DetachedMetadataContext

java.lang.Object

java.util.AbstractMap<K,V>

java.util.HashMap<K,V>

java.util.LinkedHashMap<String,List<String>>

org.sdase.commons.server.dropwizard.metadata.DetachedMetadataContext

All Implemented Interfaces:

Serializable, Cloneable, Map<String,List<String>>

public class DetachedMetadataContext
extends LinkedHashMap<String,List<String>>

A MetadataContext representation which is detached from the current MetadataContext. Changes in this class do not propagate to the current MetadataContext and vice versa.

This variant of a MetadataContext can be added to a business entity to persist the context related to that entity in MongoDB with sda-commons-server-spring-data-mongo. When a process continues and the entity is loaded from MongoDB, the MetadataContext can be restored like this:

MetadataContext.createContext(detachedMetadataContextFromEntity)

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class java.util.AbstractMap

AbstractMap.SimpleEntry<K extends Object,V extends Object>, AbstractMap.SimpleImmutableEntry<K extends Object,V extends Object>

Constructor Summary

Constructors

Constructor	Description
DetachedMetadataContext()

Method Summary

Modifier and Type	Method	Description
boolean	isEffectivelyEmpty()
static DetachedMetadataContext	of(MetadataContext metadataContext)
MetadataContext	toMetadataContext()

Methods inherited from class java.util.LinkedHashMap

clear, containsValue, entrySet, forEach, get, getOrDefault, keySet, removeEldestEntry, replaceAll, values

Methods inherited from class java.util.HashMap

clone, compute, computeIfAbsent, computeIfPresent, containsKey, isEmpty, merge, put, putAll, putIfAbsent, remove, remove, replace, replace, size

Methods inherited from class java.util.AbstractMap

equals, hashCode, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map

compute, computeIfAbsent, computeIfPresent, containsKey, equals, hashCode, isEmpty, merge, put, putAll, putIfAbsent, remove, remove, replace, replace, size

Constructor Details

DetachedMetadataContext

public DetachedMetadataContext()

Method Details

of

public static DetachedMetadataContext of(MetadataContext metadataContext)

Parameters:

metadataContext - the source metadata

Returns:

a DetachedMetadataContext that provides the information of the given metadataContext without affecting it on changes

toMetadataContext

public MetadataContext toMetadataContext()

Returns:

a MetadataContext to create a new context for the current thread

isEffectivelyEmpty

public boolean isEffectivelyEmpty()

Returns:

true, if no metadata keys are defined or no values contain data, false if any value is not empty