com.fasterxml.jackson.jr.ob.api

Class ReaderWriterModifier.Pair

java.lang.Object

com.fasterxml.jackson.jr.ob.api.ReaderWriterModifier

com.fasterxml.jackson.jr.ob.api.ReaderWriterModifier.Pair

Enclosing class:

ReaderWriterModifier

public static class ReaderWriterModifier.Pair
extends ReaderWriterModifier

Implementation that allows chaining of two modifiers, one (first) with higher precedence than the other (second).

Nested Class Summary

Nested classes/interfaces inherited from class com.fasterxml.jackson.jr.ob.api.ReaderWriterModifier

ReaderWriterModifier.Pair

Field Summary

Fields

Modifier and Type	Field and Description
protected ReaderWriterModifier	_primary
protected ReaderWriterModifier	_secondary

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Pair(ReaderWriterModifier p, ReaderWriterModifier s)

Method Summary

Modifier and Type	Method and Description
ValueReader	modifyValueReader(JSONReader ctxt, Class<?> type, ValueReader defaultReader) Method called after ValueReader to use has been constructed, but before it is to be used for the first time.
ValueWriter	modifyValueWriter(JSONWriter ctxt, Class<?> type, ValueWriter defaultWriter) Method called after ValueWriter to use has been constructed, but before it is to be used for the first time.
static ReaderWriterModifier	of(ReaderWriterModifier primary, ReaderWriterModifier secondary) Factory method for "combining" given 2 modifiers so that if neither is null, a ReaderWriterModifier.Pair is constructed; otherwise if one is non-null, that provider is returned; or if both are nulls, null is returned.
ValueWriter	overrideStandardValueWriter(JSONWriter ctxt, Class<?> type, int stdTypeId) Method called instead of ReaderWriterModifier.modifyValueWriter(com.fasterxml.jackson.jr.ob.impl.JSONWriter, java.lang.Class<?>, com.fasterxml.jackson.jr.ob.api.ValueWriter) for set of non-POJO "standard" JDK types that do not have matching ValueWriter and are normally directly serialized by JSONWriter itself.
POJODefinition	pojoDefinitionForDeserialization(JSONReader ctxt, Class<?> pojoType)
POJODefinition	pojoDefinitionForSerialization(JSONWriter ctxt, Class<?> pojoType)

Methods inherited from class java.lang.Object

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

Field Detail

_primary

protected final ReaderWriterModifier _primary

_secondary

protected final ReaderWriterModifier _secondary

Constructor Detail

Pair

protected Pair(ReaderWriterModifier p,
               ReaderWriterModifier s)

Method Detail

of

public static ReaderWriterModifier of(ReaderWriterModifier primary,
                                      ReaderWriterModifier secondary)

Factory method for "combining" given 2 modifiers so that if neither is null, a ReaderWriterModifier.Pair is constructed; otherwise if one is non-null, that provider is returned; or if both are nulls, null is returned.

Parameters:

primary - Primary provider

secondary - Secondary provider

Returns:

Provider instance either constructed (2 non-null providers), or non-null provider given as-is, or, if both nulls, null.

pojoDefinitionForDeserialization

public POJODefinition pojoDefinitionForDeserialization(JSONReader ctxt,
                                                       Class<?> pojoType)

Overrides:

pojoDefinitionForDeserialization in class ReaderWriterModifier

pojoDefinitionForSerialization

public POJODefinition pojoDefinitionForSerialization(JSONWriter ctxt,
                                                     Class<?> pojoType)

Overrides:

pojoDefinitionForSerialization in class ReaderWriterModifier

modifyValueReader

public ValueReader modifyValueReader(JSONReader ctxt,
                                     Class<?> type,
                                     ValueReader defaultReader)

Description copied from class: ReaderWriterModifier

Method called after ValueReader to use has been constructed, but before it is to be used for the first time. Method may either return that reader as-is, or construct a different ValueReader and return that to be used.

This method is often used to create a new ValueReader that needs to delegate to the original reader for some uses, but not all.

Overrides:

modifyValueReader in class ReaderWriterModifier

Parameters:

ctxt - Context that may be used to access configuration

type - Type of values to read

defaultReader - ValueReader that is to be used

Returns:

either defaultReader as-is, or an alternate ValueReader to use.

modifyValueWriter

public ValueWriter modifyValueWriter(JSONWriter ctxt,
                                     Class<?> type,
                                     ValueWriter defaultWriter)

Description copied from class: ReaderWriterModifier

Method called after ValueWriter to use has been constructed, but before it is to be used for the first time. Method may either return that writer as-is, or construct a different ValueWriter and return that to be used.

Note that this method is NOT called for non-POJO JDK "standard" values that jackson-jr supports (such as Numbers, String and URL); for these types, ReaderWriterModifier.overrideStandardValueWriter(com.fasterxml.jackson.jr.ob.impl.JSONWriter, java.lang.Class<?>, int) is called instead.

This method is often used to create a new ValueReader that needs to delegate to the original reader for some uses, but not all.

Overrides:

modifyValueWriter in class ReaderWriterModifier

Parameters:

ctxt - Context that may be used to access configuration

type - Type of values to write

defaultWriter - ValueReader that is to be used

Returns:

either defaultReader as-is, or an alternate ValueWriter to use; must not return null.

overrideStandardValueWriter

public ValueWriter overrideStandardValueWriter(JSONWriter ctxt,
                                               Class<?> type,
                                               int stdTypeId)

Description copied from class: ReaderWriterModifier

Method called instead of ReaderWriterModifier.modifyValueWriter(com.fasterxml.jackson.jr.ob.impl.JSONWriter, java.lang.Class<?>, com.fasterxml.jackson.jr.ob.api.ValueWriter) for set of non-POJO "standard" JDK types that do not have matching ValueWriter and are normally directly serialized by JSONWriter itself. Handler may either return null to indicate "no override" or return custom ValueWriter to use.

Overrides:

overrideStandardValueWriter in class ReaderWriterModifier

Parameters:

ctxt - Context that may be used to access configuration

type - Type of values to write

stdTypeId - Internal identifier of standard type (not usually useful, but could potentially be used for delegating)

Returns:

null if no override should occur, or ValueWriter to use.