Package com.fasterxml.jackson.jr.ob.impl

Class BeanReader

java.lang.Object

com.fasterxml.jackson.jr.ob.api.ValueReader

com.fasterxml.jackson.jr.ob.impl.BeanReader

public class BeanReader
extends ValueReader

Class that contains information about dynamically introspected Bean types, to be able to deserialize (read) JSON into a POJO and serialize (write) POJO as JSON.

Field Summary

Fields

Modifier and Type	Field	Description
protected final Map<String,String>	_aliasMapping	Mapping of aliased names to primary names (direct linkage unfortunately impractical due to implementation limits).
protected final BeanConstructors	_constructors
protected final Set<String>	_ignorableNames
protected final boolean	_isRecordType
protected final Map<String,BeanPropertyReader>	_propsByName
protected final Object[]	_recordNullValues	Array that contains default null values for POJO/Record properties; needed for primitive types for which null is not a valid value.

Fields inherited from class com.fasterxml.jackson.jr.ob.api.ValueReader

_valueType

Constructor Summary

Constructors

Constructor	Description
BeanReader(Class<?> type, Map<String,BeanPropertyReader> props, BeanConstructors constructors, Set<String> ignorableNames, Map<String,String> aliasMapping)	Constructors used for deserialization use case
BeanReader(Class<?> type, Map<String,BeanPropertyReader> props, Constructor<?> defaultCtor, Constructor<?> stringCtor, Constructor<?> longCtor, Set<String> ignorableNames, Map<String,String> aliasMapping)	Deprecated.

Method Summary

Modifier and Type	Method	Description
protected IOException	_reportProblem(com.fasterxml.jackson.core.JsonParser p)
BeanPropertyReader	findProperty(String name)
protected void	handleUnknown(JSONReader reader, com.fasterxml.jackson.core.JsonParser parser, String fieldName)
Map<String,BeanPropertyReader>	propertiesByName()
Object	read(JSONReader r, com.fasterxml.jackson.core.JsonParser p)	Method used for deserialization; will read an instance of the bean type using given parser.
Object	readNext(JSONReader r, com.fasterxml.jackson.core.JsonParser p)	Method called to deserialize value of type supported by this reader, using given parser.

Methods inherited from class com.fasterxml.jackson.jr.ob.api.ValueReader

_tokenDesc, _tokenDesc, _valueTypeDesc, valueType

Methods inherited from class java.lang.Object

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

Field Details

_propsByName

protected final Map<String,BeanPropertyReader> _propsByName

_aliasMapping

protected final Map<String,String> _aliasMapping

Mapping of aliased names to primary names (direct linkage unfortunately impractical due to implementation limits).

Since:

2.11

_ignorableNames

protected final Set<String> _ignorableNames

_constructors

protected final BeanConstructors _constructors

Since:

2.17

_isRecordType

protected final boolean _isRecordType

_recordNullValues

protected final Object[] _recordNullValues

Array that contains default null values for POJO/Record properties; needed for primitive types for which null is not a valid value.

Since:

2.21

Constructor Details

BeanReader

public BeanReader(Class<?> type,
 Map<String,BeanPropertyReader> props,
 BeanConstructors constructors,
 Set<String> ignorableNames,
 Map<String,String> aliasMapping)

Constructors used for deserialization use case

Since:

2.17

BeanReader

@Deprecated
public BeanReader(Class<?> type,
 Map<String,BeanPropertyReader> props,
 Constructor<?> defaultCtor,
 Constructor<?> stringCtor,
 Constructor<?> longCtor,
 Set<String> ignorableNames,
 Map<String,String> aliasMapping)

Deprecated.

Method Details

propertiesByName

public Map<String,BeanPropertyReader> propertiesByName()

findProperty

public BeanPropertyReader findProperty(String name)

readNext

public Object readNext(JSONReader r,
 com.fasterxml.jackson.core.JsonParser p)
                throws IOException

Description copied from class: ValueReader

Method called to deserialize value of type supported by this reader, using given parser. Parser is not yet positioned to the (first) token of the value to read and needs to be advanced.

Default implementation simply calls `p.nextToken()` first, then calls {#link ValueReader.read(JSONReader, JsonParser), but some implementations may decide to implement this differently to use (slightly) more efficient accessors in JsonParser, like JsonParser.nextIntValue(int).

Overrides:

readNext in class ValueReader

Parameters:

r - Context object that allows calling other read methods for contained values of different types (for example for collection readers).

p - Underlying parser used for reading decoded token stream

Throws:

IOException

read

public Object read(JSONReader r,
 com.fasterxml.jackson.core.JsonParser p)
            throws IOException

Method used for deserialization; will read an instance of the bean type using given parser.

Specified by:

read in class ValueReader

Parameters:

r - Context object that allows calling other read methods for contained values of different types (for example for collection readers).

p - Underlying parser used for reading decoded token stream

Throws:

IOException

handleUnknown

protected void handleUnknown(JSONReader reader,
 com.fasterxml.jackson.core.JsonParser parser,
 String fieldName)
                      throws IOException

Throws:

IOException

_reportProblem

protected IOException _reportProblem(com.fasterxml.jackson.core.JsonParser p)