com.fasterxml.jackson.jr.ob.impl

Class ValueWriterLocator

java.lang.Object

com.fasterxml.jackson.jr.ob.impl.ValueLocatorBase

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

public class ValueWriterLocator
extends ValueLocatorBase

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 BeanPropertyWriter[]	NO_PROPS_FOR_WRITE

Fields inherited from class com.fasterxml.jackson.jr.ob.impl.ValueLocatorBase

CACHE_FLAGS, SER_BOOLEAN, SER_BOOLEAN_ARRAY, SER_BYTE_ARRAY, SER_CALENDAR, SER_CHAR, SER_CHAR_ARRAY, SER_CHARACTER_SEQUENCE, SER_CLASS, SER_COLLECTION, SER_DATE, SER_ENUM, SER_FILE, SER_INT_ARRAY, SER_ITERABLE, SER_LIST, SER_LONG_ARRAY, SER_MAP, SER_NUMBER_BIG_DECIMAL, SER_NUMBER_BIG_INTEGER, SER_NUMBER_BYTE, SER_NUMBER_DOUBLE, SER_NUMBER_FLOAT, SER_NUMBER_INTEGER, SER_NUMBER_LONG, SER_NUMBER_SHORT, SER_OBJECT_ARRAY, SER_STRING, SER_TREE_NODE, SER_UNKNOWN, SER_URI, SER_URL, 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 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 com.fasterxml.jackson.jr.ob.impl.ValueLocatorBase

_findSimpleType

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 static 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

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)