LightMetaBean (Joda-Beans 2.0.1 API)

java.lang.Object
- org.joda.beans.impl.light.LightMetaBean<T>

Type Parameters:

T - the type of the bean

All Implemented Interfaces:

MetaBean, TypedMetaBean<T>
```
public final class LightMetaBean<T extends Bean>
extends Object
implements TypedMetaBean<T>
```
A meta-bean implementation that operates using method handles.
The properties are found using the PropertyDefinition annotation. There must be a constructor matching the property definitions (arguments of same order and types).
This uses method handles to avoid problems with reflection setAccessible() in Java SE 9. The old reflection approach is still present, but deprecated.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods Deprecated Methods
Modifier and Type	Method and Description
`Class<T>`	`beanType()` Get the type of the bean, represented as a `Class`.
`BeanBuilder<T>`	`builder()` Creates a bean builder that can be used to create an instance of this bean.
`boolean`	`equals(Object obj)`
`int`	`hashCode()`
`boolean`	`isBuildable()` Checks whether this bean is buildable or not.
`Map<String,MetaProperty<?>>`	`metaPropertyMap()` Gets the map of meta-properties, keyed by property name.
`static <B extends Bean> LightMetaBean<B>`	`of(Class<B> beanClass)` Deprecated. Use method handles version of this method
`static <B extends Bean> LightMetaBean<B>`	`of(Class<B> beanType, MethodHandles.Lookup lookup)` Obtains an instance of the meta-bean using standard default values.
`static <B extends Bean> LightMetaBean<B>`	`of(Class<B> beanType, MethodHandles.Lookup lookup, Object... defaultValues)` Deprecated. Use version with field names, because no way to determine order of fields by reflection
`static <B extends Bean> LightMetaBean<B>`	`of(Class<B> beanType, MethodHandles.Lookup lookup, String[] fieldNames, Object... defaultValues)` Obtains an instance of the meta-bean specifying default values.
`String`	`toString()` Returns a string that summarises the meta-bean.

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

Methods inherited from interface org.joda.beans.MetaBean
annotation, annotations, beanName, metaProperty, metaPropertyCount, metaPropertyExists, metaPropertyIterable, of, register

- Method Detail
 - of
```
@Deprecated
public static  LightMetaBean of(Class beanClass)
```
 Deprecated. Use method handles version of this method
 
 Obtains an instance of the meta-bean.
 The properties will be determined using reflection to find the PropertyDefinition annotation.
 
 Type Parameters:
 
 B - the type of the bean
 
 Parameters:
 
 beanClass - the bean class, not null
 
 Returns:
 
 the meta-bean, not null
 - of
```
public static  LightMetaBean of(Class beanType,
 MethodHandles.Lookup lookup)
```
 Obtains an instance of the meta-bean using standard default values.
 The properties will be determined using reflection to find the fields. Each field must have a PropertyDefinition annotation. The order of the properties is undefined as Java fields are not necessarily returned in source code order.
 The default values for primitives are determined automatically. If the bean has non-primitive values like lists and maps that need defaulting then of(Class, java.lang.invoke.MethodHandles.Lookup, String[], Object...) must be used.
 
 Type Parameters:
 
 B - the type of the bean
 
 Parameters:
 
 beanType - the bean type, not null
 
 lookup - the method handle lookup, not null
 
 Returns:
 
 the meta-bean, not null
 - of
```
@Deprecated
public static  LightMetaBean of(Class beanType,
 MethodHandles.Lookup lookup,
 Object... defaultValues)
```
 Deprecated. Use version with field names, because no way to determine order of fields by reflection
 
 Obtains an instance of the meta-bean specifying default values.
 The properties will be determined using reflection to find the PropertyDefinition annotation.
 The default values must be provided if they cannot be determined automatically. Default values for primitives are determined automatically, but empty lists and maps are not.
 
 Type Parameters:
 
 B - the type of the bean
 
 Parameters:
 
 beanType - the bean type, not null
 
 lookup - the method handle lookup, not null
 
 defaultValues - the default values, one for each property, not null
 
 Returns:
 
 the meta-bean, not null
 - of
```
public static  LightMetaBean of(Class beanType,
 MethodHandles.Lookup lookup,
 String[] fieldNames,
 Object... defaultValues)
```
 Obtains an instance of the meta-bean specifying default values.
 The properties will be determined using reflection to find the PropertyDefinition annotation.
 The field names must be specified as reflection does not return fields in source code order. The default values must be provided if they cannot be determined automatically. Default values for primitives are determined automatically, but empty lists and maps are not.
 
 Type Parameters:
 
 B - the type of the bean
 
 Parameters:
 
 beanType - the bean type, not null
 
 lookup - the method handle lookup, not null
 
 fieldNames - the field names, one for each property, not null
 
 defaultValues - the default values, one for each property, not null
 
 Returns:
 
 the meta-bean, not null
 - isBuildable
```
public boolean isBuildable()
```
 Description copied from interface: MetaBean
 
 Checks whether this bean is buildable or not.
 A buildable bean can be constructed using MetaBean.builder(). If this method returns true then builder() must return a valid builder. If this method returns false then builder() must throw UnsupportedOperationException.
 
 Specified by:
 
 isBuildable in interface MetaBean
 
 Returns:
 
 true if this bean is buildable
 - builder
```
public BeanBuilder<T> builder()
```
 Description copied from interface: MetaBean
 
 Creates a bean builder that can be used to create an instance of this bean.
 The builder is used in two main ways. The first is to allow immutable beans to be constructed. The second is to enable automated tools like serialization/deserialization.
 The builder can be thought of as a Map of MetaProperty to value. Note that the implementation is not necessarily an actual map.
 
 Specified by:
 
 builder in interface MetaBean
 
 Specified by:
 
 builder in interface TypedMetaBean<T extends Bean>
 
 Returns:
 
 the bean builder, not null
 - beanType
```
public Class<T> beanType()
```
 Description copied from interface: MetaBean
 
 Get the type of the bean, represented as a Class.
 A MetaBean can be thought of as the equivalent of Class but for beans. This method allows the actual Class instance of the bean to be obtained.
 
 Specified by:
 
 beanType in interface MetaBean
 
 Specified by:
 
 beanType in interface TypedMetaBean<T extends Bean>
 
 Returns:
 
 the type of the bean, not null
 - metaPropertyMap
```
public Map<String,MetaProperty<?>> metaPropertyMap()
```
 Description copied from interface: MetaBean
 
 Gets the map of meta-properties, keyed by property name.
 Where possible, use MetaBean.metaPropertyIterable() instead as it typically has better performance.
 
 Specified by:
 
 metaPropertyMap in interface MetaBean
 
 Returns:
 
 the unmodifiable map of meta property objects, not null
 - equals
```
public boolean equals(Object obj)
```
 Overrides:
 
 equals in class Object
 - hashCode
```
public int hashCode()
```
 Overrides:
 
 hashCode in class Object
 - toString
```
public String toString()
```
 Returns a string that summarises the meta-bean.
 
 Overrides:
 
 toString in class Object
 
 Returns:
 
 a summary string, not null

Class LightMetaBean<T extends Bean>

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface org.joda.beans.MetaBean

Method Detail

of

of

of

of

isBuildable

builder

beanType

metaPropertyMap

equals

hashCode

toString