PropertyBasedCreator (jackson-databind 2.9.0)

java.lang.Object
- com.fasterxml.jackson.databind.deser.impl.PropertyBasedCreator

```
public final class PropertyBasedCreator
extends Object
```
Object that is used to collect arguments for non-default creator (non-default-constructor, or argument-taking factory method) before creator can be called. Since ordering of JSON properties is not guaranteed, this may require buffering of values other than ones being passed to creator.

Field Summary

Fields
Modifier and Type	Field and Description
`protected SettableBeanProperty[]`	`_allProperties` Array that contains properties that expect value to inject, if any; null if no injectable values are expected.
`protected int`	`_propertyCount` Number of properties: usually same as size of `_propertyLookup`, but not necessarily, when we have unnamed injectable properties.
`protected HashMap<String,SettableBeanProperty>`	`_propertyLookup` Map that contains property objects for either constructor or factory method (whichever one is null: one property for each parameter for that one), keyed by logical property name
`protected ValueInstantiator`	`_valueInstantiator` Helper object that knows how to actually construct the instance by invoking creator method with buffered arguments.

Constructor Summary

Constructors
Modifier	Constructor and Description
`protected`	`PropertyBasedCreator(DeserializationContext ctxt, ValueInstantiator valueInstantiator, SettableBeanProperty[] creatorProps, boolean caseInsensitive, boolean addAliases)`

Method Summary

Methods
Modifier and Type	Method and Description
`Object`	`build(DeserializationContext ctxt, PropertyValueBuffer buffer)`
`static PropertyBasedCreator`	`construct(DeserializationContext ctxt, ValueInstantiator valueInstantiator, SettableBeanProperty[] srcCreatorProps)` Deprecated.
`static PropertyBasedCreator`	`construct(DeserializationContext ctxt, ValueInstantiator valueInstantiator, SettableBeanProperty[] srcCreatorProps, BeanPropertyMap allProperties)` Factory method used for building actual instances to be used with POJOS: resolves deserializers, checks for "null values".
`static PropertyBasedCreator`	`construct(DeserializationContext ctxt, ValueInstantiator valueInstantiator, SettableBeanProperty[] srcCreatorProps, boolean caseInsensitive)` Factory method used for building actual instances to be used with types OTHER than POJOs.
`SettableBeanProperty`	`findCreatorProperty(int propertyIndex)`
`SettableBeanProperty`	`findCreatorProperty(String name)`
`Collection<SettableBeanProperty>`	`properties()`
`PropertyValueBuffer`	`startBuilding(JsonParser p, DeserializationContext ctxt, ObjectIdReader oir)` Method called when starting to build a bean instance.

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

Field Detail
- _propertyCount
```
protected final int _propertyCount
```
  Number of properties: usually same as size of _propertyLookup, but not necessarily, when we have unnamed injectable properties.
- _valueInstantiator
```
protected final ValueInstantiator _valueInstantiator
```
  Helper object that knows how to actually construct the instance by invoking creator method with buffered arguments.
- _propertyLookup
```
protected final HashMap<String,SettableBeanProperty> _propertyLookup
```
  Map that contains property objects for either constructor or factory method (whichever one is null: one property for each parameter for that one), keyed by logical property name
- _allProperties
```
protected final SettableBeanProperty[] _allProperties
```
  Array that contains properties that expect value to inject, if any; null if no injectable values are expected.

Constructor Detail

PropertyBasedCreator

protected PropertyBasedCreator(DeserializationContext ctxt,
                    ValueInstantiator valueInstantiator,
                    SettableBeanProperty[] creatorProps,
                    boolean caseInsensitive,
                    boolean addAliases)

Method Detail

construct

public static PropertyBasedCreator construct(DeserializationContext ctxt,
                             ValueInstantiator valueInstantiator,
                             SettableBeanProperty[] srcCreatorProps,
                             BeanPropertyMap allProperties)
                                      throws JsonMappingException

Factory method used for building actual instances to be used with POJOS: resolves deserializers, checks for "null values".

Throws:: JsonMappingException
Since:: 2.9

construct

public static PropertyBasedCreator construct(DeserializationContext ctxt,
                             ValueInstantiator valueInstantiator,
                             SettableBeanProperty[] srcCreatorProps,
                             boolean caseInsensitive)
                                      throws JsonMappingException

Factory method used for building actual instances to be used with types OTHER than POJOs. resolves deserializers and checks for "null values".

Throws:: JsonMappingException
Since:: 2.9

construct

@Deprecated
public static PropertyBasedCreator construct(DeserializationContext ctxt,
                                        ValueInstantiator valueInstantiator,
                                        SettableBeanProperty[] srcCreatorProps)
                                      throws JsonMappingException

Deprecated.

Throws:: JsonMappingException

properties

public Collection<SettableBeanProperty> properties()

findCreatorProperty

public SettableBeanProperty findCreatorProperty(String name)

findCreatorProperty

public SettableBeanProperty findCreatorProperty(int propertyIndex)

startBuilding

public PropertyValueBuffer startBuilding(JsonParser p,
                                DeserializationContext ctxt,
                                ObjectIdReader oir)

Method called when starting to build a bean instance.

Since:: 2.1 (added ObjectIdReader parameter -- existed in previous versions without)

build

public Object build(DeserializationContext ctxt,
           PropertyValueBuffer buffer)
             throws IOException

Throws:: IOException

Class PropertyBasedCreator

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

_propertyCount

_valueInstantiator

_propertyLookup

_allProperties

Constructor Detail

PropertyBasedCreator

Method Detail

construct

construct

construct

properties

findCreatorProperty

findCreatorProperty

startBuilding

build