Package com.tangosol.coherence.rest.util

Class JsonMap

java.lang.Object

java.util.AbstractMap<K,V>

com.oracle.coherence.common.collections.InflatableMap<K,V>

com.tangosol.util.LiteMap<String,Object>

com.tangosol.coherence.rest.util.JsonMap

All Implemented Interfaces:

ExternalizableLite, Versionable<Integer>, Externalizable, Serializable, Cloneable, Map<String,Object>

public class JsonMap
extends LiteMap<String,Object>
implements Versionable<Integer>

A simple wrapper around LiteMap that preserves the order of elements and adds support for POF serialization without fidelity loss in order to support JSON pass-through.

Author:

as 2015.08.25

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	JsonMap.Serializer	POF serializer for JsonMap.

Nested classes/interfaces inherited from class com.oracle.coherence.common.collections.InflatableMap

com.oracle.coherence.common.collections.InflatableMap.EntryIterator<K,V>, com.oracle.coherence.common.collections.InflatableMap.EntrySet

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>

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K extends Object,V extends Object>

Field Summary

Fields inherited from class com.oracle.coherence.common.collections.InflatableMap

I_OTHER, m_nImpl, m_oContents, THRESHOLD

Constructor Summary

Constructors

Constructor	Description
JsonMap()	Construct a JsonMap.
JsonMap(Map<String,?> map)	Construct a JsonMap with the same mappings as the given map.

Method Summary

Modifier and Type	Method	Description
Integer	getVersionIndicator()	Get the version indicator for this object.
void	incrementVersion()	Update the version to the next logical version indicator.
protected Map<String,Object>	instantiateMap()	(Factory pattern) Instantiate a Map object to store entries in once the "lite" threshold has been exceeded.
Object	put(String key, Object value)	Associates the specified value with the specified key in this map.

Methods inherited from class com.tangosol.util.LiteMap

readExternal, writeExternal

Methods inherited from class com.oracle.coherence.common.collections.InflatableMap

checkShrinkFromOther, clear, clone, containsKey, ensureRuntimeException, entrySet, get, instantiateEntry, instantiateEntrySet, isEmpty, readExternal, remove, size, writeExternal

Methods inherited from class java.util.AbstractMap

containsValue, equals, hashCode, keySet, putAll, toString, values

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Map

compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, putIfAbsent, remove, replace, replace, replaceAll

Methods inherited from interface com.tangosol.util.Versionable

isVersioningEnabled

Constructor Detail

JsonMap

public JsonMap()

Construct a JsonMap.

JsonMap

public JsonMap(Map<String,?> map)

Construct a JsonMap with the same mappings as the given map.

Parameters:

map - the map whose mappings are to be placed in this map.

Method Detail

instantiateMap

protected Map<String,Object> instantiateMap()

Description copied from class: com.oracle.coherence.common.collections.InflatableMap

(Factory pattern) Instantiate a Map object to store entries in once the "lite" threshold has been exceeded. This method permits inheriting classes to easily override the choice of the Map object.

Overrides:

instantiateMap in class com.oracle.coherence.common.collections.InflatableMap<String,Object>

Returns:

an instance of Map

put

public Object put(String key,
                  Object value)

Description copied from class: com.oracle.coherence.common.collections.InflatableMap

Associates the specified value with the specified key in this map.

Specified by:

put in interface Map<String,Object>

Overrides:

put in class com.oracle.coherence.common.collections.InflatableMap<String,Object>

Parameters:

key - key with which the specified value is to be associated

value - value to be associated with the specified key

Returns:

previous value associated with specified key, or null if there was no mapping for key

getVersionIndicator

public Integer getVersionIndicator()

Description copied from interface: Versionable

Get the version indicator for this object. The version indicator should be an immutable object or one treated as an immutable, which is to say that after the version is incremented, the previous version's indicator reference will never be returned again.

Specified by:

getVersionIndicator in interface Versionable<Integer>

Returns:

a non-null version value that implements the Comparable interface

incrementVersion

public void incrementVersion()

Description copied from interface: Versionable

Update the version to the next logical version indicator.

Specified by:

incrementVersion in interface Versionable<Integer>