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  package com.fasterxml.jackson.databind;
  
  import java.util.*;
  
Basic container for information gathered by com.fasterxml.jackson.databind.introspect.ClassIntrospector to help in constructing serializers and deserializers. Note that the main implementation type is com.fasterxml.jackson.databind.introspect.BasicBeanDescription, meaning that it is safe to upcast to this type.
 
 public abstract class BeanDescription
 {
     /*
     /**********************************************************
     /* Configuration
     /**********************************************************
      */

    
Bean type information, including raw class and possible * generics information
 
     protected final JavaType _type;
 
     /*
     /**********************************************************
     /* Life-cycle
     /**********************************************************
      */
 
     protected BeanDescription(JavaType type)
     {
     	 = type;
     }
 
     /*
     /**********************************************************
     /* Simple accesors
     /**********************************************************
      */

    
Method for accessing declared type of bean being introspected, including full generic type information (from declaration)
 
     public JavaType getType() { return ; }
 
     public Class<?> getBeanClass() { return .getRawClass(); }

    
Method for accessing low-level information about Class this item describes.
 
     public abstract AnnotatedClass getClassInfo();

    
Accessor for getting information about Object Id expected to be used for this POJO type, if any.
 
     public abstract ObjectIdInfo getObjectIdInfo();
    
    
Method for checking whether class being described has any annotations recognized by registered annotation introspector.
 
     public abstract boolean hasKnownClassAnnotations();

    
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.
 
     public abstract TypeBindings bindingsForBeanType();

    
Method for resolving given JDK type, using this bean as the generic type resolution context.
 
     public abstract JavaType resolveType(java.lang.reflect.Type jdkType);
    
    
Method for accessing collection of annotations the bean class has.
 
     public abstract Annotations getClassAnnotations();
    
     /*
     /**********************************************************
     /* Basic API for finding properties
    /**********************************************************
     */
    
    

Returns:
Ordered Map with logical property name as key, and matching getter method as value.
    public abstract List<BeanPropertyDefinitionfindProperties();
    
    
Method for locating all back-reference properties (setters, fields) bean has
    public abstract Set<StringgetIgnoredPropertyNames();
    
    /*
    /**********************************************************
    /* Basic API for finding creator members
    /**********************************************************
     */
    
    public abstract List<AnnotatedConstructorgetConstructors();
    
    public abstract List<AnnotatedMethodgetFactoryMethods();
    
    
Method that will locate the no-arg constructor for this class, if it has one, and that constructor has not been marked as ignorable.
    public abstract AnnotatedConstructor findDefaultConstructor();

    
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
    public abstract Constructor<?> findSingleArgConstructor(Class<?>... argTypes);

    
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)
    public abstract Method findFactoryMethod(Class<?>... expArgTypes);
    /*
    /**********************************************************
    /* Basic API for finding property accessors
    /**********************************************************
     */
    
    public abstract AnnotatedMember findAnyGetter();

    
Method used to locate the method of introspected class that implements com.fasterxml.jackson.annotation.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.
    public abstract AnnotatedMethod findAnySetter();

    
Method for locating the getter method that is annotated with com.fasterxml.jackson.annotation.JsonValue annotation, if any. If multiple ones are found, an error is reported by throwing java.lang.IllegalArgumentException
    public abstract AnnotatedMethod findJsonValueMethod();
    public abstract AnnotatedMethod findMethod(String nameClass<?>[] paramTypes);
    
    /*
    /**********************************************************
    /* Basic API, class configuration
    /**********************************************************
     */
    public abstract JsonInclude.Include findSerializationInclusion(JsonInclude.Include 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:
2.1s
    public abstract JsonFormat.Value findExpectedFormat(JsonFormat.Value defValue);
    
    /*
    /**********************************************************
    /* Basic API, other
    /**********************************************************
     */
    public abstract Map<ObjectAnnotatedMemberfindInjectables();
    
    
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.
    public abstract Class<?> findPOJOBuilder();

    
Method for finding configuration for POJO Builder class.
    public abstract JsonPOJOBuilder.Value findPOJOBuilderConfig();
    
    
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.
    public abstract Object instantiateBean(boolean fixAccess);
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