MapProperty (jackson-databind 2.6.7.2)

java.lang.Object
- com.fasterxml.jackson.databind.ser.PropertyWriter
- - com.fasterxml.jackson.databind.ser.std.MapProperty

```
public class MapProperty
extends PropertyWriter
```
Helper class needed to support flexible filtering of Map properties with generic JSON Filter functionality. Since Maps are not handled as a collection of properties by Jackson (unlike POJOs), bit more wrapping is required.

Field Summary

Fields
Modifier and Type	Field and Description
`protected Object`	`_key`
`protected JsonSerializer<Object>`	`_keySerializer`
`protected BeanProperty`	`_property`
`protected TypeSerializer`	`_typeSerializer`
`protected JsonSerializer<Object>`	`_valueSerializer`

Constructor Summary

Constructors
Constructor and Description

MapProperty(TypeSerializer typeSer)
Deprecated.
since 2.4

MapProperty(TypeSerializer typeSer, BeanProperty prop)

Constructors
Constructor and Description
`MapProperty(TypeSerializer typeSer)` Deprecated. since 2.4
`MapProperty(TypeSerializer typeSer, BeanProperty prop)`

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`depositSchemaProperty(JsonObjectFormatVisitor objectVisitor)` Traversal method used for things like JSON Schema generation, or POJO introspection.
`void`	`depositSchemaProperty(ObjectNode propertiesNode, SerializerProvider provider)` Deprecated.
`<A extends Annotation> A`	`getAnnotation(Class<A> acls)` Method for accessing annotations directly declared for property that this writer is associated with.
`<A extends Annotation> A`	`getContextAnnotation(Class<A> acls)` Method for accessing annotations declared in context of the property that this writer is associated with; usually this means annotations on enclosing class for property.
`PropertyName`	`getFullName()`
`String`	`getName()`
`void`	`reset(Object key, JsonSerializer<Object> keySer, JsonSerializer<Object> valueSer)` Initialization method that needs to be called before passing property to filter.
`void`	`serializeAsElement(Object value, JsonGenerator jgen, SerializerProvider provider)` Serialization method called when output is to be done as an array, that is, not using property names.
`void`	`serializeAsField(Object value, JsonGenerator jgen, SerializerProvider provider)` The main serialization method called by filter when property is to be written normally.
`void`	`serializeAsOmittedField(Object value, JsonGenerator jgen, SerializerProvider provider)` Serialization method that filter needs to call in cases where property is to be filtered, but the underlying data format requires a placeholder of some kind.
`void`	`serializeAsPlaceholder(Object value, JsonGenerator jgen, SerializerProvider provider)` Serialization method called when doing tabular (positional) output from databind, but then value is to be omitted.

Methods inherited from class com.fasterxml.jackson.databind.ser.PropertyWriter
findAnnotation

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

- Field Detail
  - _typeSerializer
```
protected final TypeSerializer _typeSerializer
```
  - _property
```
protected final BeanProperty _property
```
  - _key
```
protected Object _key
```
  - _keySerializer
```
protected JsonSerializer<Object> _keySerializer
```
  - _valueSerializer
```
protected JsonSerializer<Object> _valueSerializer
```
- Constructor Detail
  - MapProperty
```
@Deprecated
public MapProperty(TypeSerializer typeSer)
```
    Deprecated. since 2.4
  - MapProperty
```
public MapProperty(TypeSerializer typeSer,
           BeanProperty prop)
```
- Method Detail
  - reset
```
public void reset(Object key,
         JsonSerializer<Object> keySer,
         JsonSerializer<Object> valueSer)
```
    Initialization method that needs to be called before passing property to filter.
  - getName
```
public String getName()
```
    Specified by:
    
    getName in class PropertyWriter
  - getFullName
```
public PropertyName getFullName()
```
    Specified by:
    
    getFullName in class PropertyWriter
  - getAnnotation
```
public <A extends Annotation> A getAnnotation(Class<A> acls)
```
    Description copied from class: PropertyWriter
    
    Method for accessing annotations directly declared for property that this writer is associated with.
    
    Specified by:
    
    getAnnotation in class PropertyWriter
  - getContextAnnotation
```
public <A extends Annotation> A getContextAnnotation(Class<A> acls)
```
    Description copied from class: PropertyWriter
    
    Method for accessing annotations declared in context of the property that this writer is associated with; usually this means annotations on enclosing class for property.
    
    Specified by:
    
    getContextAnnotation in class PropertyWriter
  - serializeAsField
```
public void serializeAsField(Object value,
                    JsonGenerator jgen,
                    SerializerProvider provider)
                      throws IOException
```
    Description copied from class: PropertyWriter
    
    The main serialization method called by filter when property is to be written normally.
    
    Specified by:
    
    serializeAsField in class PropertyWriter
    
    Throws:
    
    IOException
  - serializeAsOmittedField
```
public void serializeAsOmittedField(Object value,
                           JsonGenerator jgen,
                           SerializerProvider provider)
                             throws Exception
```
    Description copied from class: PropertyWriter
    
    Serialization method that filter needs to call in cases where property is to be filtered, but the underlying data format requires a placeholder of some kind. This is usually the case for tabular (positional) data formats such as CSV.
    
    Specified by:
    
    serializeAsOmittedField in class PropertyWriter
    
    Throws:
    
    Exception
  - serializeAsElement
```
public void serializeAsElement(Object value,
                      JsonGenerator jgen,
                      SerializerProvider provider)
                        throws Exception
```
    Description copied from class: PropertyWriter
    
    Serialization method called when output is to be done as an array, that is, not using property names. This is needed when serializing container (Collection, array) types, or POJOs using tabular ("as array") output format.
    Note that this mode of operation is independent of underlying data format; so it is typically NOT called for fully tabular formats such as CSV, where logical output is still as form of POJOs.
    
    Specified by:
    
    serializeAsElement in class PropertyWriter
    
    Throws:
    
    Exception
  - serializeAsPlaceholder
```
public void serializeAsPlaceholder(Object value,
                          JsonGenerator jgen,
                          SerializerProvider provider)
                            throws Exception
```
    Description copied from class: PropertyWriter
    
    Serialization method called when doing tabular (positional) output from databind, but then value is to be omitted. This requires output of a placeholder value of some sort; often similar to PropertyWriter.serializeAsOmittedField(java.lang.Object, com.fasterxml.jackson.core.JsonGenerator, com.fasterxml.jackson.databind.SerializerProvider).
    
    Specified by:
    
    serializeAsPlaceholder in class PropertyWriter
    
    Throws:
    
    Exception
  - depositSchemaProperty
```
public void depositSchemaProperty(JsonObjectFormatVisitor objectVisitor)
                           throws JsonMappingException
```
    Description copied from class: PropertyWriter
    
    Traversal method used for things like JSON Schema generation, or POJO introspection.
    
    Specified by:
    
    depositSchemaProperty in class PropertyWriter
    
    Throws:
    
    JsonMappingException
  - depositSchemaProperty
```
@Deprecated
public void depositSchemaProperty(ObjectNode propertiesNode,
                                    SerializerProvider provider)
                           throws JsonMappingException
```
    Deprecated.
    
    Description copied from class: PropertyWriter
    
    Legacy method called for JSON Schema generation; should not be called by new code
    
    Specified by:
    
    depositSchemaProperty in class PropertyWriter
    
    Throws:
    
    JsonMappingException

Class MapProperty

Field Summary

Constructor Summary

Method Summary

Methods inherited from class com.fasterxml.jackson.databind.ser.PropertyWriter

Methods inherited from class java.lang.Object

Field Detail

_typeSerializer

_property

_key

_keySerializer

_valueSerializer

Constructor Detail

MapProperty

MapProperty

Method Detail

reset

getName

getFullName

getAnnotation

getContextAnnotation

serializeAsField

serializeAsOmittedField

serializeAsElement

serializeAsPlaceholder

depositSchemaProperty

depositSchemaProperty