Module jakarta.json

Package jakarta.json

Class EmptyArray

java.lang.Object

java.util.AbstractCollection<E>

java.util.AbstractList<JsonValue>

jakarta.json.EmptyArray

All Implemented Interfaces:

JsonArray, JsonStructure, JsonValue, java.io.Serializable, java.lang.Iterable<JsonValue>, java.util.Collection<JsonValue>, java.util.List<JsonValue>, java.util.RandomAccess

final class EmptyArray
extends java.util.AbstractList<JsonValue>
implements JsonArray, java.io.Serializable, java.util.RandomAccess

Private implementation of immutable JsonArray.

Nested Class Summary

Nested classes/interfaces inherited from interface jakarta.json.JsonValue

JsonValue.ValueType

Field Summary

Fields

Modifier and Type	Field	Description
private static long	serialVersionUID	for serialization

Fields inherited from class java.util.AbstractList

modCount

Fields inherited from interface jakarta.json.JsonValue

EMPTY_JSON_ARRAY, EMPTY_JSON_OBJECT, FALSE, NULL, TRUE

Constructor Summary

Constructors

Constructor	Description
EmptyArray()	Default constructor.

Method Summary

Modifier and Type	Method	Description
JsonValue	get(int index)
boolean	getBoolean(int index)	Returns the boolean value at the specified position.
boolean	getBoolean(int index, boolean defaultValue)	Returns the boolean value at the specified position.
int	getInt(int index)	A convenience method for getJsonNumber(index).intValue().
int	getInt(int index, int defaultValue)	Returns the int value of the JsonNumber at the specified position.
JsonArray	getJsonArray(int index)	Returns the array value at the specified position in this array.
JsonNumber	getJsonNumber(int index)	Returns the number value at the specified position in this array.
JsonObject	getJsonObject(int index)	Returns the object value at the specified position in this array.
JsonString	getJsonString(int index)	Returns the string value at ths specified position in this array.
java.lang.String	getString(int index)	A convenience method for getJsonString(index).getString().
java.lang.String	getString(int index, java.lang.String defaultValue)	Returns the String value of JsonString at the specified position in this JSON array values.
<T extends JsonValue> java.util.List<T>	getValuesAs(java.lang.Class<T> clazz)	Returns a list view of the specified type for the array.
JsonValue.ValueType	getValueType()	Returns the value type of this JSON value.
boolean	isNull(int index)	Returns true if the value at the specified location in this array is JsonValue.NULL.
private java.lang.Object	readResolve()	Preserves singleton property
int	size()

Methods inherited from class java.util.AbstractList

add, add, addAll, clear, equals, hashCode, indexOf, iterator, lastIndexOf, listIterator, listIterator, remove, removeRange, set, subList

Methods inherited from class java.util.AbstractCollection

addAll, contains, containsAll, isEmpty, remove, removeAll, retainAll, toArray, toArray, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Collection

parallelStream, removeIf, stream, toArray

Methods inherited from interface java.lang.Iterable

forEach

Methods inherited from interface jakarta.json.JsonArray

getValuesAs

Methods inherited from interface jakarta.json.JsonStructure

getValue

Methods inherited from interface jakarta.json.JsonValue

asJsonArray, asJsonObject, toString

Methods inherited from interface java.util.List

add, add, addAll, addAll, clear, contains, containsAll, equals, hashCode, indexOf, isEmpty, iterator, lastIndexOf, listIterator, listIterator, remove, remove, removeAll, replaceAll, retainAll, set, sort, spliterator, subList, toArray, toArray

Field Detail

serialVersionUID

private static final long serialVersionUID

for serialization

See Also:

Constant Field Values

Constructor Detail

EmptyArray

EmptyArray()

Default constructor.

Method Detail

get

public JsonValue get(int index)

Specified by:

get in interface java.util.List<JsonValue>

Specified by:

get in class java.util.AbstractList<JsonValue>

size

public int size()

Specified by:

size in interface java.util.Collection<JsonValue>

Specified by:

size in interface java.util.List<JsonValue>

Specified by:

size in class java.util.AbstractCollection<JsonValue>

getJsonObject

public JsonObject getJsonObject(int index)

Description copied from interface: JsonArray

Returns the object value at the specified position in this array. This is a convenience method for (JsonObject)get(index).

Specified by:

getJsonObject in interface JsonArray

Parameters:

index - index of the value to be returned

Returns:

the value at the specified position in this array

getJsonArray

public JsonArray getJsonArray(int index)

Description copied from interface: JsonArray

Returns the array value at the specified position in this array. This is a convenience method for (JsonArray)get(index).

Specified by:

getJsonArray in interface JsonArray

Parameters:

index - index of the value to be returned

Returns:

the value at the specified position in this array

getJsonNumber

public JsonNumber getJsonNumber(int index)

Description copied from interface: JsonArray

Returns the number value at the specified position in this array. This is a convenience method for (JsonNumber)get(index).

Specified by:

getJsonNumber in interface JsonArray

Parameters:

index - index of the value to be returned

Returns:

the value at the specified position in this array

getJsonString

public JsonString getJsonString(int index)

Description copied from interface: JsonArray

Returns the string value at ths specified position in this array. This is a convenience method for (JsonString)get(index).

Specified by:

getJsonString in interface JsonArray

Parameters:

index - index of the value to be returned

Returns:

the value at the specified position in this array

getValuesAs

public <T extends JsonValue> java.util.List<T> getValuesAs(java.lang.Class<T> clazz)

Description copied from interface: JsonArray

Returns a list view of the specified type for the array. This method does not verify if there is a value of wrong type in the array. Providing this typesafe view dynamically may cause a program fail with a ClassCastException, if there is a value of wrong type in this array. Unfortunately, the exception can occur at any time after this method returns.

Specified by:

getValuesAs in interface JsonArray

Type Parameters:

T - The type of the List for the array

Parameters:

clazz - a JsonValue type

Returns:

a list view of the specified type

getString

public java.lang.String getString(int index)

Description copied from interface: JsonArray

A convenience method for getJsonString(index).getString().

Specified by:

getString in interface JsonArray

Parameters:

index - index of the JsonString value

Returns:

the String value at the specified position

getString

public java.lang.String getString(int index,
                                  java.lang.String defaultValue)

Description copied from interface: JsonArray

Returns the String value of JsonString at the specified position in this JSON array values. If JsonString is found, its JsonString.getString() is returned. Otherwise, the specified default value is returned.

Specified by:

getString in interface JsonArray

Parameters:

index - index of the JsonString value

defaultValue - the String to return if the JsonValue at the specified position is not a JsonString

Returns:

the String value at the specified position in this array, or the specified default value

getInt

public int getInt(int index)

Description copied from interface: JsonArray

A convenience method for getJsonNumber(index).intValue().

Specified by:

getInt in interface JsonArray

Parameters:

index - index of the JsonNumber value

Returns:

the int value at the specified position

getInt

public int getInt(int index,
                  int defaultValue)

Description copied from interface: JsonArray

Returns the int value of the JsonNumber at the specified position. If the value at that position is a JsonNumber, this method returns JsonNumber.intValue(). Otherwise this method returns the specified default value.

Specified by:

getInt in interface JsonArray

Parameters:

index - index of the JsonNumber value

defaultValue - the int value to return if the JsonValue at the specified position is not a JsonNumber

Returns:

the int value at the specified position in this array, or the specified default value

getBoolean

public boolean getBoolean(int index)

Description copied from interface: JsonArray

Returns the boolean value at the specified position. If the value at the specified position is JsonValue.TRUE this method returns true. If the value at the specified position is JsonValue.FALSE this method returns false.

Specified by:

getBoolean in interface JsonArray

Parameters:

index - index of the JSON boolean value

Returns:

the boolean value at the specified position

getBoolean

public boolean getBoolean(int index,
                          boolean defaultValue)

Description copied from interface: JsonArray

Returns the boolean value at the specified position. If the value at the specified position is JsonValue.TRUE this method returns true. If the value at the specified position is JsonValue.FALSE this method returns false. Otherwise this method returns the specified default value.

Specified by:

getBoolean in interface JsonArray

Parameters:

index - index of the JSON boolean value

defaultValue - the boolean value to return if the JsonValue at the specified position is neither TRUE nor FALSE

Returns:

the boolean value at the specified position, or the specified default value

isNull

public boolean isNull(int index)

Description copied from interface: JsonArray

Returns true if the value at the specified location in this array is JsonValue.NULL.

Specified by:

isNull in interface JsonArray

Parameters:

index - index of the JSON null value

Returns:

return true if the value at the specified location is JsonValue.NULL, otherwise false

getValueType

public JsonValue.ValueType getValueType()

Description copied from interface: JsonValue

Returns the value type of this JSON value.

Specified by:

getValueType in interface JsonValue

Returns:

JSON value type

readResolve

private java.lang.Object readResolve()

Preserves singleton property

Returns:

JsonValue.EMPTY_JSON_ARRAY