Modifier and Type	Class and Description
pack-priv static class	JsonNodeDeserializer.ArrayDeserializer Implementation used when declared type is specifically `ArrayNode`.
pack-priv static class	JsonNodeDeserializer.ObjectDeserializer Implementation used when declared type is specifically `ObjectNode`.

Modifier and Type	Field and Description
private static final JsonNodeDeserializer	instance Singleton instance of generic deserializer for `JsonNode`.

Access	Constructor and Description
protected	JsonNodeDeserializer()
protected	JsonNodeDeserializer(JsonNodeDeserializer base, boolean mergeArrays, boolean mergeObjects)

instance	back to summary
private static final JsonNodeDeserializer instance Singleton instance of generic deserializer for `JsonNode`. Only used for types other than JSON Object and Array.

JsonNodeDeserializer	back to summary
protected JsonNodeDeserializer()

JsonNodeDeserializer	back to summary
protected JsonNodeDeserializer(JsonNodeDeserializer base, boolean mergeArrays, boolean mergeObjects)

Method Detail

_createWithMerge	back to summary
protected BaseNodeDeserializer<?> _createWithMerge(boolean mergeArrays, boolean mergeObjects) Implements abstract tools.jackson.databind.deser.jackson.BaseNodeDeserializer._createWithMerge. Annotations @Override

_createWithMerge

back to summary

protected BaseNodeDeserializer<?> _createWithMerge(boolean mergeArrays, boolean mergeObjects)

Implements abstract tools.jackson.databind.deser.jackson.BaseNodeDeserializer._createWithMerge.

Annotations

@Override

deserialize	back to summary
public JsonNode deserialize(JsonParser p, DeserializationContext ctxt) throws JacksonException Implements abstract tools.jackson.databind.ValueDeserializer.deserialize. Implementation that will produce types of any JSON nodes; not just one deserializer is registered to handle (in case of more specialized handler). Overridden by typed sub-classes for more thorough checking Annotations @Override

deserialize

back to summary

public JsonNode deserialize(JsonParser p, DeserializationContext ctxt) throws JacksonException

Implements abstract tools.jackson.databind.ValueDeserializer.deserialize.

Implementation that will produce types of any JSON nodes; not just one deserializer is registered to handle (in case of more specialized handler). Overridden by typed sub-classes for more thorough checking

Annotations

@Override

getAbsentValue back to summary

getAbsentValue	back to summary
public Object getAbsentValue(DeserializationContext ctxt) Overrides tools.jackson.databind.ValueDeserializer.getAbsentValue. Overrides default tools.jackson.databind.deser.NullValueProvider.getAbsentValue. Overridden variant to ensure that absent values are NOT coerced into `NullNode`s, unlike incoming `null` values. Annotations @Override

public Object getAbsentValue(DeserializationContext ctxt)

Overrides tools.jackson.databind.ValueDeserializer.getAbsentValue.

Overrides default tools.jackson.databind.deser.NullValueProvider.getAbsentValue.

Overridden variant to ensure that absent values are NOT coerced into NullNodes, unlike incoming null values.

Annotations

@Override

getDeserializer	back to summary
public static BaseNodeDeserializer<?> getDeserializer(Class<?> nodeClass) Factory method for accessing deserializer for specific node type

getNullValue back to summary

getNullValue	back to summary
public JsonNode getNullValue(DeserializationContext ctxt) Overrides tools.jackson.databind.ValueDeserializer.getNullValue. Implements tools.jackson.databind.deser.NullValueProvider.getNullValue. Doc from tools.jackson.databind.ValueDeserializer.getNullValue. Method that can be called to determine value to be used for representing null values (values deserialized when JSON token is `JsonToken#VALUE_NULL`). Usually this is simply Java null, but for some types (especially primitives) it may be necessary to use non-null values. This method may be called once, or multiple times, depending on what `getNullAccessPattern()` returns. Default implementation simply returns null. Annotations @Override

public JsonNode getNullValue(DeserializationContext ctxt)

Overrides tools.jackson.databind.ValueDeserializer.getNullValue.

Implements tools.jackson.databind.deser.NullValueProvider.getNullValue.

Doc from tools.jackson.databind.ValueDeserializer.getNullValue.

Method that can be called to determine value to be used for representing null values (values deserialized when JSON token is JsonToken#VALUE_NULL). Usually this is simply Java null, but for some types (especially primitives) it may be necessary to use non-null values.

This method may be called once, or multiple times, depending on what getNullAccessPattern() returns.

Default implementation simply returns null.

Annotations

@Override

supportsUpdate back to summary

supportsUpdate	back to summary
public Boolean supportsUpdate(DeserializationConfig config) Overrides tools.jackson.databind.deser.jackson.BaseNodeDeserializer.supportsUpdate. Doc from tools.jackson.databind.ValueDeserializer.supportsUpdate. Introspection method that may be called to see whether deserializer supports update of an existing value (aka "merging") or not. Return value should either be `Boolean#FALSE` if update is not supported at all (immutable values); `Boolean#TRUE` if update should usually work (regular POJOs, for example), or `null` if this is either not known, or may sometimes work. Information gathered is typically used to either prevent merging update for property (either by skipping, if based on global defaults; or by exception during deserializer construction if explicit attempt made) if `Boolean#FALSE` returned, or inclusion if `Boolean#TRUE` is specified. If "unknown" case (`null` returned) behavior is to exclude property if global defaults used; or to allow if explicit per-type or property merging is defined. Default implementation returns `null` to allow explicit per-type or per-property attempts. Annotations @Override

public Boolean supportsUpdate(DeserializationConfig config)

Overrides tools.jackson.databind.deser.jackson.BaseNodeDeserializer.supportsUpdate.

Doc from tools.jackson.databind.ValueDeserializer.supportsUpdate.

Introspection method that may be called to see whether deserializer supports update of an existing value (aka "merging") or not. Return value should either be Boolean#FALSE if update is not supported at all (immutable values); Boolean#TRUE if update should usually work (regular POJOs, for example), or null if this is either not known, or may sometimes work.

Information gathered is typically used to either prevent merging update for property (either by skipping, if based on global defaults; or by exception during deserializer construction if explicit attempt made) if Boolean#FALSE returned, or inclusion if Boolean#TRUE is specified. If "unknown" case (null returned) behavior is to exclude property if global defaults used; or to allow if explicit per-type or property merging is defined.

Default implementation returns null to allow explicit per-type or per-property attempts.

Annotations

@Override

tools.jackson.databind.deser.jackson back to summary

pack-priv final Class JsonNodeDeserializer.ArrayDeserializer

Class Inheritance

extends BaseNodeDeserializer<ArrayNode>

java.lang.Object
tools.jackson.databind.ValueDeserializer
tools.jackson.databind.deser.std.StdDeserializer
tools.jackson.databind.deser.jackson.BaseNodeDeserializer
tools.jackson.databind.deser.jackson.JsonNodeDeserializer.ArrayDeserializer

Implementation used when declared type is specifically ArrayNode.

Field Summary

Modifier and Type	Field and Description
protected static final JsonNodeDeserializer.ArrayDeserializer	_instance

Inherited from tools.jackson.databind.deser.jackson.BaseNodeDeserializer:: _mergeArrays _mergeObjects _supportsUpdates

Constructor Summary

Access	Constructor and Description
protected	ArrayDeserializer()
protected	ArrayDeserializer(JsonNodeDeserializer.ArrayDeserializer base, boolean mergeArrays, boolean mergeObjects)

Method Summary

Modifier and Type	Method and Description
protected BaseNodeDeserializer<?>	_createWithMerge(boolean mergeArrays, boolean mergeObjects) Implements abstract tools.jackson.databind.deser.jackson.BaseNodeDeserializer._createWithMerge.
public ArrayNode	deserialize(JsonParser p, DeserializationContext ctxt) Implements abstract tools.jackson.databind.ValueDeserializer.deserialize. Method that can be called to ask implementation to deserialize JSON content into the value type this serializer handles.
public ArrayNode	deserialize(JsonParser p, DeserializationContext ctxt, ArrayNode arrayNode) Overrides tools.jackson.databind.ValueDeserializer.deserialize. Variant needed to support both root-level `updateValue()` and merging.
public static JsonNodeDeserializer.ArrayDeserializer	getInstance()

Inherited from tools.jackson.databind.deser.jackson.BaseNodeDeserializer:: _deserializeAnyScalar _deserializeContainerNoRecursion _deserializeObjectAtName _deserializeRareScalar _fromEmbedded _fromFloat _fromInt _fromInt _handleDuplicateProperty _normalize createContextual deserializeWithType isCachable logicalType supportsUpdate updateObject

Field Detail

_instance	back to summary
protected static final JsonNodeDeserializer.ArrayDeserializer _instance

Constructor Detail

ArrayDeserializer	back to summary
protected ArrayDeserializer()

ArrayDeserializer	back to summary
protected ArrayDeserializer(JsonNodeDeserializer.ArrayDeserializer base, boolean mergeArrays, boolean mergeObjects)

Method Detail

_createWithMerge	back to summary
protected BaseNodeDeserializer<?> _createWithMerge(boolean mergeArrays, boolean mergeObjects) Implements abstract tools.jackson.databind.deser.jackson.BaseNodeDeserializer._createWithMerge. Annotations @Override

_createWithMerge

back to summary

protected BaseNodeDeserializer<?> _createWithMerge(boolean mergeArrays, boolean mergeObjects)

Implements abstract tools.jackson.databind.deser.jackson.BaseNodeDeserializer._createWithMerge.

Annotations

@Override

deserialize back to summary

deserialize	back to summary
public ArrayNode deserialize(JsonParser p, DeserializationContext ctxt) throws JacksonException Implements abstract tools.jackson.databind.ValueDeserializer.deserialize. Doc from tools.jackson.databind.ValueDeserializer.deserialize. Method that can be called to ask implementation to deserialize JSON content into the value type this serializer handles. Returned instance is to be constructed by method itself. Pre-condition for this method is that the parser points to the first event that is part of value to deserializer (and which is never JSON 'null' literal, more on this below): for simple types it may be the only value; and for structured types the Object start marker or a FIELD_NAME. The two possible input conditions for structured types result from polymorphism via fields. In the ordinary case, Jackson calls this method when it has encountered an OBJECT_START, and the method implementation must advance to the next token to see the first field name. If the application configures polymorphism via a field, then the object looks like the following. { "@class": "class name", ... } Jackson consumes the two tokens (the `@class` field name and its value) in order to learn the class and select the deserializer. Thus, the stream is pointing to the FIELD_NAME for the first field after the @class. Thus, if you want your method to work correctly both with and without polymorphism, you must begin your method with: if (p.currentToken() == JsonToken.START_OBJECT) { p.nextToken(); } This results in the stream pointing to the field name, so that the two conditions align. Post-condition is that the parser will point to the last event that is part of deserialized value (or in case deserialization fails, event that was not recognized or usable, which may be the same event as the one it pointed to upon call). Handling null values (JsonToken.VALUE_NULL) : Note that this method is never called for the JSON `null` literal to avoid every deserializer from having to handle null values. Instead, the `ValueDeserializer#getNullValue(DeserializationContext)` method is called to produce a null value. To influence null handling, custom deserializers should override `ValueDeserializer#getNullValue(DeserializationContext)` and usually also `ValueDeserializer#getNullAccessPattern()`. Annotations @Override

public ArrayNode deserialize(JsonParser p, DeserializationContext ctxt) throws JacksonException

Implements abstract tools.jackson.databind.ValueDeserializer.deserialize.

Doc from tools.jackson.databind.ValueDeserializer.deserialize.

Method that can be called to ask implementation to deserialize JSON content into the value type this serializer handles. Returned instance is to be constructed by method itself.

Pre-condition for this method is that the parser points to the first event that is part of value to deserializer (and which is never JSON 'null' literal, more on this below): for simple types it may be the only value; and for structured types the Object start marker or a FIELD_NAME.

The two possible input conditions for structured types result from polymorphism via fields. In the ordinary case, Jackson calls this method when it has encountered an OBJECT_START, and the method implementation must advance to the next token to see the first field name. If the application configures polymorphism via a field, then the object looks like the following.

      {
          "@class": "class name",
          ...
      }

Jackson consumes the two tokens (the @class field name and its value) in order to learn the class and select the deserializer. Thus, the stream is pointing to the FIELD_NAME for the first field after the @class. Thus, if you want your method to work correctly both with and without polymorphism, you must begin your method with:

       if (p.currentToken() == JsonToken.START_OBJECT) {
         p.nextToken();
       }

This results in the stream pointing to the field name, so that the two conditions align.

Post-condition is that the parser will point to the last event that is part of deserialized value (or in case deserialization fails, event that was not recognized or usable, which may be the same event as the one it pointed to upon call).

Handling null values (JsonToken.VALUE_NULL)
: Note that this method is never called for the JSON null literal to avoid every deserializer from having to handle null values. Instead, the ValueDeserializer#getNullValue(DeserializationContext) method is called to produce a null value. To influence null handling, custom deserializers should override ValueDeserializer#getNullValue(DeserializationContext) and usually also ValueDeserializer#getNullAccessPattern().

Annotations

@Override

deserialize back to summary

deserialize	back to summary
public ArrayNode deserialize(JsonParser p, DeserializationContext ctxt, ArrayNode arrayNode) throws JacksonException Overrides tools.jackson.databind.ValueDeserializer.deserialize. Variant needed to support both root-level `updateValue()` and merging. Annotations @Override

public ArrayNode deserialize(JsonParser p, DeserializationContext ctxt, ArrayNode arrayNode) throws JacksonException

Overrides tools.jackson.databind.ValueDeserializer.deserialize.

Variant needed to support both root-level updateValue() and merging.

Annotations

@Override

getInstance	back to summary
public static JsonNodeDeserializer.ArrayDeserializer getInstance()

tools.jackson.databind.deser.jackson back to summary

pack-priv final Class JsonNodeDeserializer.ObjectDeserializer

Class Inheritance

extends BaseNodeDeserializer<ObjectNode>

java.lang.Object
tools.jackson.databind.ValueDeserializer
tools.jackson.databind.deser.std.StdDeserializer
tools.jackson.databind.deser.jackson.BaseNodeDeserializer
tools.jackson.databind.deser.jackson.JsonNodeDeserializer.ObjectDeserializer

Implementation used when declared type is specifically ObjectNode.

Field Summary

Modifier and Type	Field and Description
protected static final JsonNodeDeserializer.ObjectDeserializer	_instance

Inherited from tools.jackson.databind.deser.jackson.BaseNodeDeserializer:: _mergeArrays _mergeObjects _supportsUpdates

Constructor Summary

Access	Constructor and Description
protected	ObjectDeserializer()
protected	ObjectDeserializer(JsonNodeDeserializer.ObjectDeserializer base, boolean mergeArrays, boolean mergeObjects)

Method Summary

Modifier and Type	Method and Description
protected BaseNodeDeserializer<?>	_createWithMerge(boolean mergeArrays, boolean mergeObjects) Implements abstract tools.jackson.databind.deser.jackson.BaseNodeDeserializer._createWithMerge.
public ObjectNode	deserialize(JsonParser p, DeserializationContext ctxt) Implements abstract tools.jackson.databind.ValueDeserializer.deserialize. Method that can be called to ask implementation to deserialize JSON content into the value type this serializer handles.
public ObjectNode	deserialize(JsonParser p, DeserializationContext ctxt, ObjectNode node) Overrides tools.jackson.databind.ValueDeserializer.deserialize. Variant needed to support both root-level `updateValue()` and merging.
public static JsonNodeDeserializer.ObjectDeserializer	getInstance()

Inherited from tools.jackson.databind.deser.jackson.BaseNodeDeserializer:: _deserializeAnyScalar _deserializeContainerNoRecursion _deserializeObjectAtName _deserializeRareScalar _fromEmbedded _fromFloat _fromInt _fromInt _handleDuplicateProperty _normalize createContextual deserializeWithType isCachable logicalType supportsUpdate updateObject

Field Detail

_instance	back to summary
protected static final JsonNodeDeserializer.ObjectDeserializer _instance

Constructor Detail

ObjectDeserializer	back to summary
protected ObjectDeserializer()

ObjectDeserializer	back to summary
protected ObjectDeserializer(JsonNodeDeserializer.ObjectDeserializer base, boolean mergeArrays, boolean mergeObjects)

Method Detail

_createWithMerge	back to summary
protected BaseNodeDeserializer<?> _createWithMerge(boolean mergeArrays, boolean mergeObjects) Implements abstract tools.jackson.databind.deser.jackson.BaseNodeDeserializer._createWithMerge. Annotations @Override

_createWithMerge

back to summary

protected BaseNodeDeserializer<?> _createWithMerge(boolean mergeArrays, boolean mergeObjects)

Implements abstract tools.jackson.databind.deser.jackson.BaseNodeDeserializer._createWithMerge.

Annotations

@Override

deserialize back to summary

deserialize	back to summary
public ObjectNode deserialize(JsonParser p, DeserializationContext ctxt) throws JacksonException Implements abstract tools.jackson.databind.ValueDeserializer.deserialize. Doc from tools.jackson.databind.ValueDeserializer.deserialize. Method that can be called to ask implementation to deserialize JSON content into the value type this serializer handles. Returned instance is to be constructed by method itself. Pre-condition for this method is that the parser points to the first event that is part of value to deserializer (and which is never JSON 'null' literal, more on this below): for simple types it may be the only value; and for structured types the Object start marker or a FIELD_NAME. The two possible input conditions for structured types result from polymorphism via fields. In the ordinary case, Jackson calls this method when it has encountered an OBJECT_START, and the method implementation must advance to the next token to see the first field name. If the application configures polymorphism via a field, then the object looks like the following. { "@class": "class name", ... } Jackson consumes the two tokens (the `@class` field name and its value) in order to learn the class and select the deserializer. Thus, the stream is pointing to the FIELD_NAME for the first field after the @class. Thus, if you want your method to work correctly both with and without polymorphism, you must begin your method with: if (p.currentToken() == JsonToken.START_OBJECT) { p.nextToken(); } This results in the stream pointing to the field name, so that the two conditions align. Post-condition is that the parser will point to the last event that is part of deserialized value (or in case deserialization fails, event that was not recognized or usable, which may be the same event as the one it pointed to upon call). Handling null values (JsonToken.VALUE_NULL) : Note that this method is never called for the JSON `null` literal to avoid every deserializer from having to handle null values. Instead, the `ValueDeserializer#getNullValue(DeserializationContext)` method is called to produce a null value. To influence null handling, custom deserializers should override `ValueDeserializer#getNullValue(DeserializationContext)` and usually also `ValueDeserializer#getNullAccessPattern()`. Annotations @Override

public ObjectNode deserialize(JsonParser p, DeserializationContext ctxt) throws JacksonException

Implements abstract tools.jackson.databind.ValueDeserializer.deserialize.

Doc from tools.jackson.databind.ValueDeserializer.deserialize.

Method that can be called to ask implementation to deserialize JSON content into the value type this serializer handles. Returned instance is to be constructed by method itself.

      {
          "@class": "class name",
          ...
      }

       if (p.currentToken() == JsonToken.START_OBJECT) {
         p.nextToken();
       }

This results in the stream pointing to the field name, so that the two conditions align.

Annotations

@Override

deserialize	back to summary
public ObjectNode deserialize(JsonParser p, DeserializationContext ctxt, ObjectNode node) throws JacksonException Overrides tools.jackson.databind.ValueDeserializer.deserialize. Variant needed to support both root-level `updateValue()` and merging. Annotations @Override

deserialize

back to summary

public ObjectNode deserialize(JsonParser p, DeserializationContext ctxt, ObjectNode node) throws JacksonException

Overrides tools.jackson.databind.ValueDeserializer.deserialize.

Variant needed to support both root-level `updateValue()` and merging.

Annotations

@Override

getInstance	back to summary
public static JsonNodeDeserializer.ObjectDeserializer getInstance()

public Class JsonNodeDeserializer

Nested and Inner Type Summary

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail

pack-priv final Class JsonNodeDeserializer.ArrayDeserializer

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail

pack-priv final Class JsonNodeDeserializer.ObjectDeserializer

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail

Modifier and Type	Method and Description
protected BaseNodeDeserializer<?>	_createWithMerge(boolean mergeArrays, boolean mergeObjects) Implements abstract tools.jackson.databind.deser.jackson.BaseNodeDeserializer._createWithMerge.
public JsonNode	deserialize(JsonParser p, DeserializationContext ctxt) Implements abstract tools.jackson.databind.ValueDeserializer.deserialize. Implementation that will produce types of any JSON nodes; not just one deserializer is registered to handle (in case of more specialized handler).
public Object	getAbsentValue(DeserializationContext ctxt) Overrides tools.jackson.databind.ValueDeserializer.getAbsentValue. Overrides default tools.jackson.databind.deser.NullValueProvider.getAbsentValue. Overridden variant to ensure that absent values are NOT coerced into `NullNode`s, unlike incoming `null` values.
public static BaseNodeDeserializer<?>	getDeserializer(Class<?> nodeClass) Factory method for accessing deserializer for specific node type
public JsonNode	getNullValue(DeserializationContext ctxt) Overrides tools.jackson.databind.ValueDeserializer.getNullValue. Implements tools.jackson.databind.deser.NullValueProvider.getNullValue. Method that can be called to determine value to be used for representing null values (values deserialized when JSON token is `JsonToken#VALUE_NULL`).
public Boolean	supportsUpdate(DeserializationConfig config) Overrides tools.jackson.databind.deser.jackson.BaseNodeDeserializer.supportsUpdate. Introspection method that may be called to see whether deserializer supports update of an existing value (aka "merging") or not.