java.lang.Object
- org.codehaus.jackson.map.deser.impl.ExternalTypeHandler

```
public class ExternalTypeHandler
extends Object
```
Helper class that is used to flatten JSON structure when using "external type id" (see JsonTypeInfo.As.EXTERNAL_PROPERTY). This is needed to store temporary state and buffer tokens, as the structure is rearranged a bit so that actual type deserializer can resolve type and finalize deserialization.

Since:

1.9

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class ExternalTypeHandler.Builder

Constructor Summary

Constructors
Modifier	Constructor	Description
`protected`	`ExternalTypeHandler(ExternalTypeHandler h)`
`protected`	`ExternalTypeHandler(org.codehaus.jackson.map.deser.impl.ExternalTypeHandler.ExtTypedProperty[] properties, HashMap<String,Integer> nameToPropertyIndex, String[] typeIds, TokenBuffer[] tokens)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected void`	`_deserialize(JsonParser jp, DeserializationContext ctxt, Object bean, int index)`
`Object`	`complete(JsonParser jp, DeserializationContext ctxt, Object bean)`
`boolean`	`handleToken(JsonParser jp, DeserializationContext ctxt, String propName, Object bean)`	Method called to ask handler to handle
`boolean`	`handleTypePropertyValue(JsonParser jp, DeserializationContext ctxt, String propName, Object bean)`	Method called to see if given property/value pair is an external type id; and if so handle it.
`ExternalTypeHandler`	`start()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ExternalTypeHandler

protected ExternalTypeHandler(org.codehaus.jackson.map.deser.impl.ExternalTypeHandler.ExtTypedProperty[] properties,
                              HashMap<String,Integer> nameToPropertyIndex,
                              String[] typeIds,
                              TokenBuffer[] tokens)

ExternalTypeHandler

protected ExternalTypeHandler(ExternalTypeHandler h)

Method Detail

start
```
public ExternalTypeHandler start()
```

handleTypePropertyValue

public boolean handleTypePropertyValue(JsonParser jp,
                                       DeserializationContext ctxt,
                                       String propName,
                                       Object bean)
                                throws IOException,
                                       JsonProcessingException

Method called to see if given property/value pair is an external type id; and if so handle it. This is only to be called in case containing POJO has similarly named property as the external type id; otherwise

handleToken(org.codehaus.jackson.JsonParser, org.codehaus.jackson.map.DeserializationContext, java.lang.String, java.lang.Object)

should be called instead.

Throws:: IOException; JsonProcessingException

handleToken

public boolean handleToken(JsonParser jp,
                           DeserializationContext ctxt,
                           String propName,
                           Object bean)
                    throws IOException,
                           JsonProcessingException

Method called to ask handler to handle

Throws:: IOException; JsonProcessingException

complete

public Object complete(JsonParser jp,
                       DeserializationContext ctxt,
                       Object bean)
                throws IOException,
                       JsonProcessingException

Throws:: IOException; JsonProcessingException

_deserialize

protected final void _deserialize(JsonParser jp,
                                  DeserializationContext ctxt,
                                  Object bean,
                                  int index)
                           throws IOException,
                                  JsonProcessingException

Throws:: IOException; JsonProcessingException

Class ExternalTypeHandler

Nested Class Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

ExternalTypeHandler

ExternalTypeHandler

Method Detail

start

handleTypePropertyValue

handleToken

complete

_deserialize