com.fasterxml.jackson.jr.ob.impl

Class ValueWriterLocator

java.lang.Object

com.fasterxml.jackson.jr.ob.impl.ValueWriterLocator

public class ValueWriterLocator
extends Object

Helper object used for efficient detection of type information relevant to our conversion needs when writing out Java Objects as JSON.

Note that usage pattern is such that a single "root" instance is kept by each JSON instance; and an actual per-operation instance must be constructed by calling perOperationInstance(com.fasterxml.jackson.jr.ob.impl.JSONWriter, int): reason for this is that instances use simple caching to handle the common case of repeating types within JSON Arrays.

Field Summary

Fields

Modifier and Type	Field and Description
protected int	_features
protected ConcurrentHashMap<ClassKey,Integer>	_knownSerTypes Mapping from classes to resolved type constants or indexes, to use for serialization.
protected CopyOnWriteArrayList<ValueWriter>	_knownWriters
protected JSONWriter	_writeContext
protected ReaderWriterModifier	_writerModifier Provider for reader customizer, if any; may be null.
protected ReaderWriterProvider	_writerProvider Provider for custom writers, if any; may be null.
protected static int	CACHE_FLAGS
protected BeanPropertyWriter[]	NO_PROPS_FOR_WRITE
static int	SER_BOOLEAN
static int	SER_BOOLEAN_ARRAY
static int	SER_BYTE_ARRAY
static int	SER_CALENDAR
static int	SER_CHAR
static int	SER_CHAR_ARRAY
static int	SER_CHARACTER_SEQUENCE
static int	SER_CLASS
static int	SER_COLLECTION All kinds of Collections other than Lists
static int	SER_DATE
static int	SER_ENUM
static int	SER_FILE
static int	SER_INT_ARRAY
static int	SER_ITERABLE Anything that implements Iterable, but not Collection.
static int	SER_LIST All kinds of Lists.
static int	SER_LONG_ARRAY
static int	SER_MAP All kinds of Maps.
static int	SER_NUMBER_BIG_DECIMAL
static int	SER_NUMBER_BIG_INTEGER
static int	SER_NUMBER_BYTE
static int	SER_NUMBER_DOUBLE
static int	SER_NUMBER_FLOAT
static int	SER_NUMBER_INTEGER
static int	SER_NUMBER_LONG
static int	SER_NUMBER_SHORT
static int	SER_OBJECT_ARRAY Arrays of non-primitive types
static int	SER_STRING
static int	SER_TREE_NODE An implementation of TreeNode
static int	SER_UNKNOWN Type not yet resolved
static int	SER_URI
static int	SER_URL
static int	SER_UUID

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ValueWriterLocator(int features, ReaderWriterProvider rwp, ReaderWriterModifier rwm) Constructor for the blueprint instance (and variations)
protected	ValueWriterLocator(ValueWriterLocator base, int features, JSONWriter w)

Method Summary

Modifier and Type	Method and Description
protected int	_findPOJOSerializationType(Class<?> raw) Method called to locate a serializer for given type and return numeric id.
protected int	_findSimpleType(Class<?> raw, boolean forSer)
protected POJODefinition	_resolveBeanDef(Class<?> raw)
protected BeanPropertyWriter[]	_resolveBeanForSer(Class<?> raw, POJODefinition beanDef)
static ValueWriterLocator	blueprint(ReaderWriterProvider rwp, ReaderWriterModifier rwm)
int	findSerializationType(Class<?> raw) The main lookup method used to find type identifier for given raw class; including Bean types (if allowed).
ValueWriter	getValueWriter(int index)
ValueWriterLocator	perOperationInstance(JSONWriter w, int features)
ValueWriterLocator	with(ReaderWriterModifier rwm)
ValueWriterLocator	with(ReaderWriterProvider rwp)

Methods inherited from class java.lang.Object

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

Field Detail

NO_PROPS_FOR_WRITE

protected final BeanPropertyWriter[] NO_PROPS_FOR_WRITE

_knownSerTypes

protected final ConcurrentHashMap<ClassKey,Integer> _knownSerTypes

Mapping from classes to resolved type constants or indexes, to use for serialization.

_knownWriters

protected final CopyOnWriteArrayList<ValueWriter> _knownWriters

_writerProvider

protected final ReaderWriterProvider _writerProvider

Provider for custom writers, if any; may be null.

Since:

2.10

_writerModifier

protected final ReaderWriterModifier _writerModifier

Provider for reader customizer, if any; may be null.

Since:

2.11

_features

protected final int _features

_writeContext

protected final JSONWriter _writeContext

SER_UNKNOWN

public static final int SER_UNKNOWN

Type not yet resolved

See Also:

Constant Field Values

SER_MAP

public static final int SER_MAP

All kinds of Maps.

See Also:

Constant Field Values

SER_LIST

public static final int SER_LIST

All kinds of Lists.

See Also:

Constant Field Values

SER_COLLECTION

public static final int SER_COLLECTION

All kinds of Collections other than Lists

See Also:

Constant Field Values

SER_OBJECT_ARRAY

public static final int SER_OBJECT_ARRAY

Arrays of non-primitive types

See Also:

Constant Field Values

SER_INT_ARRAY

public static final int SER_INT_ARRAY

See Also:

Constant Field Values

SER_LONG_ARRAY

public static final int SER_LONG_ARRAY

See Also:

Constant Field Values

SER_BOOLEAN_ARRAY

public static final int SER_BOOLEAN_ARRAY

See Also:

Constant Field Values

SER_TREE_NODE

public static final int SER_TREE_NODE

An implementation of TreeNode

See Also:

Constant Field Values

SER_STRING

public static final int SER_STRING

See Also:

Constant Field Values

SER_CHARACTER_SEQUENCE

public static final int SER_CHARACTER_SEQUENCE

See Also:

Constant Field Values

SER_CHAR_ARRAY

public static final int SER_CHAR_ARRAY

See Also:

Constant Field Values

SER_BYTE_ARRAY

public static final int SER_BYTE_ARRAY

See Also:

Constant Field Values

SER_NUMBER_BYTE

public static final int SER_NUMBER_BYTE

See Also:

Constant Field Values

SER_NUMBER_SHORT

public static final int SER_NUMBER_SHORT

See Also:

Constant Field Values

SER_NUMBER_INTEGER

public static final int SER_NUMBER_INTEGER

See Also:

Constant Field Values

SER_NUMBER_LONG

public static final int SER_NUMBER_LONG

See Also:

Constant Field Values

SER_NUMBER_FLOAT

public static final int SER_NUMBER_FLOAT

See Also:

Constant Field Values

SER_NUMBER_DOUBLE

public static final int SER_NUMBER_DOUBLE

See Also:

Constant Field Values

SER_NUMBER_BIG_INTEGER

public static final int SER_NUMBER_BIG_INTEGER

See Also:

Constant Field Values

SER_NUMBER_BIG_DECIMAL

public static final int SER_NUMBER_BIG_DECIMAL

See Also:

Constant Field Values

SER_BOOLEAN

public static final int SER_BOOLEAN

See Also:

Constant Field Values

SER_CHAR

public static final int SER_CHAR

See Also:

Constant Field Values

SER_ENUM

public static final int SER_ENUM

See Also:

Constant Field Values

SER_DATE

public static final int SER_DATE

See Also:

Constant Field Values

SER_CALENDAR

public static final int SER_CALENDAR

See Also:

Constant Field Values

SER_CLASS

public static final int SER_CLASS

See Also:

Constant Field Values

SER_FILE

public static final int SER_FILE

See Also:

Constant Field Values

SER_UUID

public static final int SER_UUID

See Also:

Constant Field Values

SER_URL

public static final int SER_URL

See Also:

Constant Field Values

SER_URI

public static final int SER_URI

See Also:

Constant Field Values

SER_ITERABLE

public static final int SER_ITERABLE

Anything that implements Iterable, but not Collection.

See Also:

Constant Field Values

CACHE_FLAGS

protected static final int CACHE_FLAGS

Constructor Detail

ValueWriterLocator

protected ValueWriterLocator(int features,
                             ReaderWriterProvider rwp,
                             ReaderWriterModifier rwm)

Constructor for the blueprint instance (and variations)

ValueWriterLocator

protected ValueWriterLocator(ValueWriterLocator base,
                             int features,
                             JSONWriter w)

Method Detail

blueprint

public static final ValueWriterLocator blueprint(ReaderWriterProvider rwp,
                                                 ReaderWriterModifier rwm)

with

public ValueWriterLocator with(ReaderWriterProvider rwp)

with

public ValueWriterLocator with(ReaderWriterModifier rwm)

perOperationInstance

public ValueWriterLocator perOperationInstance(JSONWriter w,
                                               int features)

getValueWriter

public ValueWriter getValueWriter(int index)

findSerializationType

public final int findSerializationType(Class<?> raw)

The main lookup method used to find type identifier for given raw class; including Bean types (if allowed).

_resolveBeanDef

protected POJODefinition _resolveBeanDef(Class<?> raw)

_findPOJOSerializationType

protected int _findPOJOSerializationType(Class<?> raw)

Method called to locate a serializer for given type and return numeric id. Serializer can be found using one of follow methods (in order of lookups):

1. Custom serializer via ReaderWriterProvider
2. Simple type supported out-of-the-box, for types like String, Boolean, Number and a small number of other JDK types
3. Bean-style POJOs with accessors (getters, public fields)

_resolveBeanForSer

protected BeanPropertyWriter[] _resolveBeanForSer(Class<?> raw,
                                                  POJODefinition beanDef)

_findSimpleType

protected int _findSimpleType(Class<?> raw,
                              boolean forSer)