com.fasterxml.jackson.databind.deser.std

Class StdKeyDeserializer

java.lang.Object

com.fasterxml.jackson.databind.KeyDeserializer

com.fasterxml.jackson.databind.deser.std.StdKeyDeserializer

All Implemented Interfaces:

Serializable

public class StdKeyDeserializer
extends KeyDeserializer
implements Serializable

Default KeyDeserializer implementation used for most Map types Jackson supports. Implemented as "chameleon" (or swiss pocket knife) class; not particularly elegant, but helps reduce number of classes and jar size (class metadata adds significant per-class overhead; much more than bytecode).

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class com.fasterxml.jackson.databind.KeyDeserializer

KeyDeserializer.None

Field Summary

Fields

Modifier and Type	Field and Description
protected FromStringDeserializer<?>	_deser Some types that are deserialized using a helper deserializer.
protected Class<?>	_keyClass
protected int	_kind
static int	TYPE_BOOLEAN
static int	TYPE_BYTE
static int	TYPE_CALENDAR
static int	TYPE_CHAR
static int	TYPE_DATE
static int	TYPE_DOUBLE
static int	TYPE_FLOAT
static int	TYPE_INT
static int	TYPE_LOCALE
static int	TYPE_LONG
static int	TYPE_SHORT
static int	TYPE_UUID

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	StdKeyDeserializer(int kind, Class<?> cls)
protected	StdKeyDeserializer(int kind, Class<?> cls, FromStringDeserializer<?> deser)

Method Summary

Methods

Modifier and Type	Method and Description
protected Object	_parse(String key, DeserializationContext ctxt)
protected double	_parseDouble(String key)
protected int	_parseInt(String key)
protected long	_parseLong(String key)
Object	deserializeKey(String key, DeserializationContext ctxt) Method called to deserialize a Map key from JSON property name.
static StdKeyDeserializer	forType(Class<?> raw)
Class<?>	getKeyClass()

Methods inherited from class java.lang.Object

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

Field Detail

TYPE_BOOLEAN

public static final int TYPE_BOOLEAN

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Constant Field Values

TYPE_BYTE

public static final int TYPE_BYTE

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Constant Field Values

TYPE_SHORT

public static final int TYPE_SHORT

See Also:

Constant Field Values

TYPE_CHAR

public static final int TYPE_CHAR

See Also:

Constant Field Values

TYPE_INT

public static final int TYPE_INT

See Also:

Constant Field Values

TYPE_LONG

public static final int TYPE_LONG

See Also:

Constant Field Values

TYPE_FLOAT

public static final int TYPE_FLOAT

See Also:

Constant Field Values

TYPE_DOUBLE

public static final int TYPE_DOUBLE

See Also:

Constant Field Values

TYPE_LOCALE

public static final int TYPE_LOCALE

See Also:

Constant Field Values

TYPE_DATE

public static final int TYPE_DATE

See Also:

Constant Field Values

TYPE_CALENDAR

public static final int TYPE_CALENDAR

See Also:

Constant Field Values

TYPE_UUID

public static final int TYPE_UUID

See Also:

Constant Field Values

_kind

protected final int _kind

_keyClass

protected final Class<?> _keyClass

_deser

protected final FromStringDeserializer<?> _deser

Some types that are deserialized using a helper deserializer.

Constructor Detail

StdKeyDeserializer

protected StdKeyDeserializer(int kind,
                  Class<?> cls)

StdKeyDeserializer

protected StdKeyDeserializer(int kind,
                  Class<?> cls,
                  FromStringDeserializer<?> deser)

Method Detail

forType

public static StdKeyDeserializer forType(Class<?> raw)

deserializeKey

public Object deserializeKey(String key,
                    DeserializationContext ctxt)
                      throws IOException,
                             com.fasterxml.jackson.core.JsonProcessingException

Description copied from class: KeyDeserializer

Method called to deserialize a Map key from JSON property name.

Specified by:

deserializeKey in class KeyDeserializer

Throws:

IOException

com.fasterxml.jackson.core.JsonProcessingException

getKeyClass

public Class<?> getKeyClass()

_parse

protected Object _parse(String key,
            DeserializationContext ctxt)
                 throws Exception

Throws:

Exception

_parseInt

protected int _parseInt(String key)
                 throws IllegalArgumentException

Throws:

IllegalArgumentException

_parseLong

protected long _parseLong(String key)
                   throws IllegalArgumentException

Throws:

IllegalArgumentException

_parseDouble

protected double _parseDouble(String key)
                       throws IllegalArgumentException

Throws:

IllegalArgumentException