BeanDescription (jackson-databind 2.2.0 API)

java.lang.Object
- com.fasterxml.jackson.databind.BeanDescription

Direct Known Subclasses:

BasicBeanDescription
```
public abstract class BeanDescription
extends Object
```
Basic container for information gathered by ClassIntrospector to help in constructing serializers and deserializers. Note that the main implementation type is BasicBeanDescription, meaning that it is safe to upcast to this type.

Field Summary

Fields
Modifier and Type Field and Description

protected JavaType _type
Bean type information, including raw class and possible * generics information

Fields
Modifier and Type	Field and Description
`protected JavaType`	`_type` Bean type information, including raw class and possible * generics information

Constructor Summary

Constructors
Modifier Constructor and Description

protected BeanDescription(JavaType type)

Constructors
Modifier	Constructor and Description
`protected`	`BeanDescription(JavaType type)`

Method Summary

Methods
Modifier and Type	Method and Description
`abstract TypeBindings`	`bindingsForBeanType()` Accessor for type bindings that may be needed to fully resolve types of member object, such as return and argument types of methods and constructors, and types of fields.
`abstract AnnotatedMember`	`findAnyGetter()`
`abstract AnnotatedMethod`	`findAnySetter()` Method used to locate the method of introspected class that implements `JsonAnySetter`.
`abstract Map<String,AnnotatedMember>`	`findBackReferenceProperties()` Method for locating all back-reference properties (setters, fields) bean has
`abstract AnnotatedConstructor`	`findDefaultConstructor()` Method that will locate the no-arg constructor for this class, if it has one, and that constructor has not been marked as ignorable.
`abstract Converter<Object,Object>`	`findDeserializationConverter()` Method for finding `Converter` used for serializing instances of this class.
`abstract JsonFormat.Value`	`findExpectedFormat(JsonFormat.Value defValue)` Method for checking what is the expected format for POJO, as defined by defaults and possible annotations.
`abstract Method`	`findFactoryMethod(Class<?>... expArgTypes)` Method that can be called to find if introspected class declares a static "valueOf" factory method that returns an instance of introspected type, given one of acceptable types.
`abstract Map<Object,AnnotatedMember>`	`findInjectables()`
`abstract AnnotatedMethod`	`findJsonValueMethod()` Method for locating the getter method that is annotated with `JsonValue` annotation, if any.
`abstract AnnotatedMethod`	`findMethod(String name, Class<?>[] paramTypes)`
`abstract Class<?>`	`findPOJOBuilder()` Method for checking if the POJO type has annotations to indicate that a builder is to be used for instantiating instances and handling data binding, instead of standard bean deserializer.
`abstract JsonPOJOBuilder.Value`	`findPOJOBuilderConfig()` Method for finding configuration for POJO Builder class.
`abstract List<BeanPropertyDefinition>`	`findProperties()`
`abstract Converter<Object,Object>`	`findSerializationConverter()` Method for finding `Converter` used for serializing instances of this class.
`abstract JsonInclude.Include`	`findSerializationInclusion(JsonInclude.Include defValue)`
`abstract Constructor<?>`	`findSingleArgConstructor(Class<?>... argTypes)` Method that can be called to locate a single-arg constructor that takes specified exact type (will not accept supertype constructors)
`Class<?>`	`getBeanClass()`
`abstract Annotations`	`getClassAnnotations()` Method for accessing collection of annotations the bean class has.
`abstract AnnotatedClass`	`getClassInfo()` Method for accessing low-level information about Class this item describes.
`abstract List<AnnotatedConstructor>`	`getConstructors()`
`abstract List<AnnotatedMethod>`	`getFactoryMethods()`
`abstract Set<String>`	`getIgnoredPropertyNames()`
`abstract ObjectIdInfo`	`getObjectIdInfo()` Accessor for getting information about Object Id expected to be used for this POJO type, if any.
`JavaType`	`getType()` Method for accessing declared type of bean being introspected, including full generic type information (from declaration)
`abstract boolean`	`hasKnownClassAnnotations()` Method for checking whether class being described has any annotations recognized by registered annotation introspector.
`abstract Object`	`instantiateBean(boolean fixAccess)` Method called to create a "default instance" of the bean, currently only needed for obtaining default field values which may be used for suppressing serialization of fields that have "not changed".
`abstract JavaType`	`resolveType(Type jdkType)` Method for resolving given JDK type, using this bean as the generic type resolution context.

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

- Field Detail
  - _type
```
protected final JavaType _type
```
    Bean type information, including raw class and possible * generics information
- Constructor Detail
  - BeanDescription
```
protected BeanDescription(JavaType type)
```
- Method Detail
  - getType
```
public JavaType getType()
```
    Method for accessing declared type of bean being introspected, including full generic type information (from declaration)
  - getBeanClass
```
public Class<?> getBeanClass()
```
  - getClassInfo
```
public abstract AnnotatedClass getClassInfo()
```
    Method for accessing low-level information about Class this item describes.
  - getObjectIdInfo
```
public abstract ObjectIdInfo getObjectIdInfo()
```
    Accessor for getting information about Object Id expected to be used for this POJO type, if any.
  - hasKnownClassAnnotations
```
public abstract boolean hasKnownClassAnnotations()
```
    Method for checking whether class being described has any annotations recognized by registered annotation introspector.
  - bindingsForBeanType
```
public abstract TypeBindings bindingsForBeanType()
```
    Accessor for type bindings that may be needed to fully resolve types of member object, such as return and argument types of methods and constructors, and types of fields.
  - resolveType
```
public abstract JavaType resolveType(Type jdkType)
```
    Method for resolving given JDK type, using this bean as the generic type resolution context.
  - getClassAnnotations
```
public abstract Annotations getClassAnnotations()
```
    Method for accessing collection of annotations the bean class has.
  - findProperties
```
public abstract List<BeanPropertyDefinition> findProperties()
```
    Returns:
    Ordered Map with logical property name as key, and matching getter method as value.
  - findBackReferenceProperties
```
public abstract Map<String,AnnotatedMember> findBackReferenceProperties()
```
    Method for locating all back-reference properties (setters, fields) bean has
  - getIgnoredPropertyNames
```
public abstract Set<String> getIgnoredPropertyNames()
```
  - getConstructors
```
public abstract List<AnnotatedConstructor> getConstructors()
```
  - getFactoryMethods
```
public abstract List<AnnotatedMethod> getFactoryMethods()
```
  - findDefaultConstructor
```
public abstract AnnotatedConstructor findDefaultConstructor()
```
    Method that will locate the no-arg constructor for this class, if it has one, and that constructor has not been marked as ignorable.
  - findSingleArgConstructor
```
public abstract Constructor<?> findSingleArgConstructor(Class<?>... argTypes)
```
    Method that can be called to locate a single-arg constructor that takes specified exact type (will not accept supertype constructors)
    
    Parameters:
    argTypes - Type(s) of the argument that we are looking for
  - findFactoryMethod
```
public abstract Method findFactoryMethod(Class<?>... expArgTypes)
```
    Method that can be called to find if introspected class declares a static "valueOf" factory method that returns an instance of introspected type, given one of acceptable types.
    
    Parameters:
    expArgTypes - Types that the matching single argument factory method can take: will also accept super types of these types (ie. arg just has to be assignable from expArgType)
  - findAnyGetter
```
public abstract AnnotatedMember findAnyGetter()
```
  - findAnySetter
```
public abstract AnnotatedMethod findAnySetter()
```
    Method used to locate the method of introspected class that implements JsonAnySetter. If no such method exists null is returned. If more than one are found, an exception is thrown. Additional checks are also made to see that method signature is acceptable: needs to take 2 arguments, first one String or Object; second any can be any type.
  - findJsonValueMethod
```
public abstract AnnotatedMethod findJsonValueMethod()
```
    Method for locating the getter method that is annotated with JsonValue annotation, if any. If multiple ones are found, an error is reported by throwing IllegalArgumentException
  - findMethod
```
public abstract AnnotatedMethod findMethod(String name,
                         Class<?>[] paramTypes)
```
  - findSerializationInclusion
```
public abstract JsonInclude.Include findSerializationInclusion(JsonInclude.Include defValue)
```
  - findExpectedFormat
```
public abstract JsonFormat.Value findExpectedFormat(JsonFormat.Value defValue)
```
    Method for checking what is the expected format for POJO, as defined by defaults and possible annotations. Note that this may be further refined by per-property annotations.
    
    Since:
    
    2.1
  - findSerializationConverter
```
public abstract Converter<Object,Object> findSerializationConverter()
```
    Method for finding Converter used for serializing instances of this class.
    
    Since:
    
    2.2
  - findDeserializationConverter
```
public abstract Converter<Object,Object> findDeserializationConverter()
```
    Method for finding Converter used for serializing instances of this class.
    
    Since:
    
    2.2
  - findInjectables
```
public abstract Map<Object,AnnotatedMember> findInjectables()
```
  - findPOJOBuilder
```
public abstract Class<?> findPOJOBuilder()
```
    Method for checking if the POJO type has annotations to indicate that a builder is to be used for instantiating instances and handling data binding, instead of standard bean deserializer.
  - findPOJOBuilderConfig
```
public abstract JsonPOJOBuilder.Value findPOJOBuilderConfig()
```
    Method for finding configuration for POJO Builder class.
  - instantiateBean
```
public abstract Object instantiateBean(boolean fixAccess)
```
    Method called to create a "default instance" of the bean, currently only needed for obtaining default field values which may be used for suppressing serialization of fields that have "not changed".
    
    Parameters:
    fixAccess - If true, method is allowed to fix access to the default constructor (to be able to call non-public constructor); if false, has to use constructor as is.
    
    Returns:
    Instance of class represented by this descriptor, if suitable default constructor was found; null otherwise.

Class BeanDescription

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

_type

Constructor Detail

BeanDescription

Method Detail

getType

getBeanClass

getClassInfo

getObjectIdInfo

hasKnownClassAnnotations

bindingsForBeanType

resolveType

getClassAnnotations

findProperties

findBackReferenceProperties

getIgnoredPropertyNames

getConstructors

getFactoryMethods

findDefaultConstructor

findSingleArgConstructor

findFactoryMethod

findAnyGetter

findAnySetter

findJsonValueMethod

findMethod

findSerializationInclusion

findExpectedFormat

findSerializationConverter

findDeserializationConverter

findInjectables

findPOJOBuilder

findPOJOBuilderConfig

instantiateBean