Package com.cedarsoftware.util.io

Class JsonObject

java.lang.Object

java.util.AbstractMap<K,V>

java.util.HashMap<K,V>

java.util.LinkedHashMap<Object,Object>

com.cedarsoftware.util.io.JsonObject

All Implemented Interfaces:

Serializable, Cloneable, Map<Object,Object>

public class JsonObject
extends LinkedHashMap<Object,Object>

This class holds a JSON object in a LinkedHashMap. LinkedHashMap used to keep fields in same order as they are when reflecting them in Java. Instances of this class hold a Map-of-Map representation of a Java object, read from the JSON input stream.

Author:

John DeRegnaucourt ([email protected])
Copyright (c) Cedar Software LLC

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.*

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>

Field Summary

Fields

Modifier and Type	Field	Description
static final String	ID
static final String	ITEMS
static final String	KEYS
static final String	REF
static final String	SHORT_ID
static final String	SHORT_ITEMS
static final String	SHORT_KEYS
static final String	SHORT_REF
static final String	SHORT_TYPE
static final String	TYPE
static final String	VALUE

Constructor Summary

Constructors

Constructor	Description
JsonObject()

Method Summary

Modifier and Type	Method	Description
void	clear()
boolean	equals(Object other)
Object[]	getArray()
Class<?>	getComponentType()
int	getLength()
Object	getPrimitiveValue()
Long	getReferenceId()
Class<?>	getTargetClass()
Object	getValue()
int	hashCode()
boolean	hasId()	A JsonObject starts off with an id of -1.
boolean	isArray()
boolean	isCollection()
boolean	isFinished()
boolean	isLogicalPrimitive()
boolean	isMap()
boolean	isReference()
Object	put(Object key, Object value)
Object	setFinishedTarget(Object o, boolean isFinished)
Object	setValue(Object o)
int	size()
String	toString()

Methods inherited from class java.util.LinkedHashMap

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

Methods inherited from class java.util.HashMap

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

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, isEmpty, merge, putAll, putIfAbsent, remove, remove, replace, replace

Field Details

KEYS

public static final String KEYS

See Also:

• Constant Field Values

ITEMS

public static final String ITEMS

See Also:

• Constant Field Values

ID

public static final String ID

See Also:

• Constant Field Values

REF

public static final String REF

See Also:

• Constant Field Values

TYPE

public static final String TYPE

See Also:

• Constant Field Values

SHORT_TYPE

public static final String SHORT_TYPE

See Also:

• Constant Field Values

SHORT_ITEMS

public static final String SHORT_ITEMS

See Also:

• Constant Field Values

SHORT_KEYS

public static final String SHORT_KEYS

See Also:

• Constant Field Values

SHORT_ID

public static final String SHORT_ID

See Also:

• Constant Field Values

SHORT_REF

public static final String SHORT_REF

See Also:

• Constant Field Values

VALUE

public static final String VALUE

See Also:

• Constant Field Values

Constructor Details

JsonObject

public JsonObject()

Method Details

toString

public String toString()

Overrides:

toString in class AbstractMap<Object,Object>

hasId

public boolean hasId()

A JsonObject starts off with an id of -1. Also, an id of 0 is not considered a valid id. It must be 1 or greater. JsonWriter utilizes this fact.

isFinished

public boolean isFinished()

setFinishedTarget

public Object setFinishedTarget(Object o,
 boolean isFinished)

getTargetClass

public Class<?> getTargetClass()

isLogicalPrimitive

public boolean isLogicalPrimitive()

getPrimitiveValue

public Object getPrimitiveValue()

isReference

public boolean isReference()

Returns:

boolean true if this object references another object, false otherwise.

getReferenceId

public Long getReferenceId()

isMap

public boolean isMap()

isCollection

public boolean isCollection()

isArray

public boolean isArray()

getArray

public Object[] getArray()

getLength

public int getLength()

getComponentType

public Class<?> getComponentType()

put

public Object put(Object key,
 Object value)

Specified by:

put in interface Map<Object,Object>

Overrides:

put in class HashMap<Object,Object>

setValue

public Object setValue(Object o)

getValue

public Object getValue()

clear

public void clear()

Specified by:

clear in interface Map<Object,Object>

Overrides:

clear in class LinkedHashMap<Object,Object>

size

public int size()

Specified by:

size in interface Map<Object,Object>

Overrides:

size in class HashMap<Object,Object>

hashCode

public int hashCode()

Specified by:

hashCode in interface Map<Object,Object>

Overrides:

hashCode in class AbstractMap<Object,Object>

equals

public boolean equals(Object other)

Specified by:

equals in interface Map<Object,Object>

Overrides:

equals in class AbstractMap<Object,Object>