java.lang.Object
- java.lang.constant.ConstantDescs

```
public final class ConstantDescs
extends Object
```
Predefined values of nominal descriptor for common constants, including descriptors for primitive class types and other common platform types, and descriptors for method handles for standard bootstrap methods.

Since:

12

See Also:

ConstantDesc

Field Summary

Fields
Modifier and Type	Field	Description
`static DirectMethodHandleDesc`	`BSM_ENUM_CONSTANT`	`MethodHandleDesc` representing `ConstantBootstraps.enumConstant`
`static DirectMethodHandleDesc`	`BSM_INVOKE`	`MethodHandleDesc` representing `ConstantBootstraps.invoke`
`static DirectMethodHandleDesc`	`BSM_NULL_CONSTANT`	`MethodHandleDesc` representing `ConstantBootstraps.nullConstant`
`static DirectMethodHandleDesc`	`BSM_PRIMITIVE_CLASS`	`MethodHandleDesc` representing `ConstantBootstraps.primitiveClass`
`static DirectMethodHandleDesc`	`BSM_VARHANDLE_ARRAY`	`MethodHandleDesc` representing `ConstantBootstraps.arrayVarHandle`
`static DirectMethodHandleDesc`	`BSM_VARHANDLE_FIELD`	`MethodHandleDesc` representing `ConstantBootstraps.fieldVarHandle`
`static DirectMethodHandleDesc`	`BSM_VARHANDLE_STATIC_FIELD`	`MethodHandleDesc` representing `ConstantBootstraps.staticVarHandle`
`static ClassDesc`	`CD_boolean`	`ClassDesc` representing the primitive type `boolean`
`static ClassDesc`	`CD_Boolean`	`ClassDesc` representing `Boolean`
`static ClassDesc`	`CD_byte`	`ClassDesc` representing the primitive type `byte`
`static ClassDesc`	`CD_Byte`	`ClassDesc` representing `Byte`
`static ClassDesc`	`CD_CallSite`	`ClassDesc` representing `CallSite`
`static ClassDesc`	`CD_char`	`ClassDesc` representing the primitive type `char`
`static ClassDesc`	`CD_Character`	`ClassDesc` representing `Character`
`static ClassDesc`	`CD_Class`	`ClassDesc` representing `Class`
`static ClassDesc`	`CD_ClassDesc`	`ClassDesc` representing `ClassDesc`
`static ClassDesc`	`CD_Collection`	`ClassDesc` representing `Collection`
`static ClassDesc`	`CD_ConstantBootstraps`	`ClassDesc` representing `ConstantBootstraps`
`static ClassDesc`	`CD_ConstantDesc`	`ClassDesc` representing `ConstantDesc`
`static ClassDesc`	`CD_DirectMethodHandleDesc`	`ClassDesc` representing `DirectMethodHandleDesc`
`static ClassDesc`	`CD_double`	`ClassDesc` representing the primitive type `double`
`static ClassDesc`	`CD_Double`	`ClassDesc` representing `Double`
`static ClassDesc`	`CD_DynamicCallSiteDesc`	`ClassDesc` representing `DynamicCallSiteDesc`
`static ClassDesc`	`CD_DynamicConstantDesc`	`ClassDesc` representing `DynamicConstantDesc`
`static ClassDesc`	`CD_Enum`	`ClassDesc` representing `Enum`
`static ClassDesc`	`CD_EnumDesc`	`ClassDesc` representing `Enum.EnumDesc`
`static ClassDesc`	`CD_Exception`	`ClassDesc` representing `Exception`
`static ClassDesc`	`CD_float`	`ClassDesc` representing the primitive type `float`
`static ClassDesc`	`CD_Float`	`ClassDesc` representing `Float`
`static ClassDesc`	`CD_int`	`ClassDesc` representing the primitive type `int`
`static ClassDesc`	`CD_Integer`	`ClassDesc` representing `Integer`
`static ClassDesc`	`CD_List`	`ClassDesc` representing `List`
`static ClassDesc`	`CD_long`	`ClassDesc` representing the primitive type `long`
`static ClassDesc`	`CD_Long`	`ClassDesc` representing `Long`
`static ClassDesc`	`CD_Map`	`ClassDesc` representing `Map`
`static ClassDesc`	`CD_MethodHandle`	`ClassDesc` representing `MethodHandle`
`static ClassDesc`	`CD_MethodHandleDesc`	`ClassDesc` representing `MethodHandleDesc`
`static ClassDesc`	`CD_MethodHandleDesc_Kind`	`ClassDesc` representing `DirectMethodHandleDesc.Kind`
`static ClassDesc`	`CD_MethodHandles`	`ClassDesc` representing `MethodHandles`
`static ClassDesc`	`CD_MethodHandles_Lookup`	`ClassDesc` representing `MethodHandles.Lookup`
`static ClassDesc`	`CD_MethodType`	`ClassDesc` representing `MethodType`
`static ClassDesc`	`CD_MethodTypeDesc`	`ClassDesc` representing `MethodTypeDesc`
`static ClassDesc`	`CD_Number`	`ClassDesc` representing `Number`
`static ClassDesc`	`CD_Object`	`ClassDesc` representing `Object`
`static ClassDesc`	`CD_Set`	`ClassDesc` representing `Set`
`static ClassDesc`	`CD_short`	`ClassDesc` representing the primitive type `short`
`static ClassDesc`	`CD_Short`	`ClassDesc` representing `Short`
`static ClassDesc`	`CD_String`	`ClassDesc` representing `String`
`static ClassDesc`	`CD_Throwable`	`ClassDesc` representing `Throwable`
`static ClassDesc`	`CD_VarHandle`	`ClassDesc` representing `VarHandle`
`static ClassDesc`	`CD_VarHandleDesc`	`ClassDesc` representing `VarHandle.VarHandleDesc`
`static ClassDesc`	`CD_void`	`ClassDesc` representing the primitive type `void`
`static ClassDesc`	`CD_Void`	`ClassDesc` representing `Void`
`static String`	`DEFAULT_NAME`	Invocation name to use when no name is needed, such as the name of a constructor, or the invocation name of a dynamic constant or dynamic callsite when the bootstrap is known to ignore the invocation name.
`static ConstantDesc`	`NULL`	Nominal descriptor representing the constant `null`

Method Summary

Modifier and Type	Method	Description
`static DirectMethodHandleDesc`	`ofCallsiteBootstrap(ClassDesc owner, String name, ClassDesc returnType, ClassDesc... paramTypes)`	Returns a `MethodHandleDesc` corresponding to a bootstrap method for an `invokedynamic` callsite, which is a static method whose leading parameter types are `Lookup`, `String`, and `MethodType`.
`static DirectMethodHandleDesc`	`ofConstantBootstrap(ClassDesc owner, String name, ClassDesc returnType, ClassDesc... paramTypes)`	Returns a `MethodHandleDesc` corresponding to a bootstrap method for a dynamic constant, which is a static method whose leading arguments are `Lookup`, `String`, and `Class`.

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

- Field Detail
  - DEFAULT_NAME
```
public static final String DEFAULT_NAME
```
    Invocation name to use when no name is needed, such as the name of a constructor, or the invocation name of a dynamic constant or dynamic callsite when the bootstrap is known to ignore the invocation name.
    
    See Also:
    
    Constant Field Values
  - CD_Object
```
public static final ClassDesc CD_Object
```
    ClassDesc representing Object
  - CD_String
```
public static final ClassDesc CD_String
```
    ClassDesc representing String
  - CD_Class
```
public static final ClassDesc CD_Class
```
    ClassDesc representing Class
  - CD_Number
```
public static final ClassDesc CD_Number
```
    ClassDesc representing Number
  - CD_Integer
```
public static final ClassDesc CD_Integer
```
    ClassDesc representing Integer
  - CD_Long
```
public static final ClassDesc CD_Long
```
    ClassDesc representing Long
  - CD_Float
```
public static final ClassDesc CD_Float
```
    ClassDesc representing Float
  - CD_Double
```
public static final ClassDesc CD_Double
```
    ClassDesc representing Double
  - CD_Short
```
public static final ClassDesc CD_Short
```
    ClassDesc representing Short
  - CD_Byte
```
public static final ClassDesc CD_Byte
```
    ClassDesc representing Byte
  - CD_Character
```
public static final ClassDesc CD_Character
```
    ClassDesc representing Character
  - CD_Boolean
```
public static final ClassDesc CD_Boolean
```
    ClassDesc representing Boolean
  - CD_Void
```
public static final ClassDesc CD_Void
```
    ClassDesc representing Void
  - CD_Throwable
```
public static final ClassDesc CD_Throwable
```
    ClassDesc representing Throwable
  - CD_Exception
```
public static final ClassDesc CD_Exception
```
    ClassDesc representing Exception
  - CD_Enum
```
public static final ClassDesc CD_Enum
```
    ClassDesc representing Enum
  - CD_VarHandle
```
public static final ClassDesc CD_VarHandle
```
    ClassDesc representing VarHandle
  - CD_MethodHandles
```
public static final ClassDesc CD_MethodHandles
```
    ClassDesc representing MethodHandles
  - CD_MethodHandles_Lookup
```
public static final ClassDesc CD_MethodHandles_Lookup
```
    ClassDesc representing MethodHandles.Lookup
  - CD_MethodHandle
```
public static final ClassDesc CD_MethodHandle
```
    ClassDesc representing MethodHandle
  - CD_MethodType
```
public static final ClassDesc CD_MethodType
```
    ClassDesc representing MethodType
  - CD_CallSite
```
public static final ClassDesc CD_CallSite
```
    ClassDesc representing CallSite
  - CD_Collection
```
public static final ClassDesc CD_Collection
```
    ClassDesc representing Collection
  - CD_List
```
public static final ClassDesc CD_List
```
    ClassDesc representing List
  - CD_Set
```
public static final ClassDesc CD_Set
```
    ClassDesc representing Set
  - CD_Map
```
public static final ClassDesc CD_Map
```
    ClassDesc representing Map
  - CD_ConstantDesc
```
public static final ClassDesc CD_ConstantDesc
```
    ClassDesc representing ConstantDesc
  - CD_ClassDesc
```
public static final ClassDesc CD_ClassDesc
```
    ClassDesc representing ClassDesc
  - CD_EnumDesc
```
public static final ClassDesc CD_EnumDesc
```
    ClassDesc representing Enum.EnumDesc
  - CD_MethodTypeDesc
```
public static final ClassDesc CD_MethodTypeDesc
```
    ClassDesc representing MethodTypeDesc
  - CD_MethodHandleDesc
```
public static final ClassDesc CD_MethodHandleDesc
```
    ClassDesc representing MethodHandleDesc
  - CD_DirectMethodHandleDesc
```
public static final ClassDesc CD_DirectMethodHandleDesc
```
    ClassDesc representing DirectMethodHandleDesc
  - CD_VarHandleDesc
```
public static final ClassDesc CD_VarHandleDesc
```
    ClassDesc representing VarHandle.VarHandleDesc
  - CD_MethodHandleDesc_Kind
```
public static final ClassDesc CD_MethodHandleDesc_Kind
```
    ClassDesc representing DirectMethodHandleDesc.Kind
  - CD_DynamicConstantDesc
```
public static final ClassDesc CD_DynamicConstantDesc
```
    ClassDesc representing DynamicConstantDesc
  - CD_DynamicCallSiteDesc
```
public static final ClassDesc CD_DynamicCallSiteDesc
```
    ClassDesc representing DynamicCallSiteDesc
  - CD_ConstantBootstraps
```
public static final ClassDesc CD_ConstantBootstraps
```
    ClassDesc representing ConstantBootstraps
  - BSM_PRIMITIVE_CLASS
```
public static final DirectMethodHandleDesc BSM_PRIMITIVE_CLASS
```
    MethodHandleDesc representing ConstantBootstraps.primitiveClass
  - BSM_ENUM_CONSTANT
```
public static final DirectMethodHandleDesc BSM_ENUM_CONSTANT
```
    MethodHandleDesc representing ConstantBootstraps.enumConstant
  - BSM_NULL_CONSTANT
```
public static final DirectMethodHandleDesc BSM_NULL_CONSTANT
```
    MethodHandleDesc representing ConstantBootstraps.nullConstant
  - BSM_VARHANDLE_FIELD
```
public static final DirectMethodHandleDesc BSM_VARHANDLE_FIELD
```
    MethodHandleDesc representing ConstantBootstraps.fieldVarHandle
  - BSM_VARHANDLE_STATIC_FIELD
```
public static final DirectMethodHandleDesc BSM_VARHANDLE_STATIC_FIELD
```
    MethodHandleDesc representing ConstantBootstraps.staticVarHandle
  - BSM_VARHANDLE_ARRAY
```
public static final DirectMethodHandleDesc BSM_VARHANDLE_ARRAY
```
    MethodHandleDesc representing ConstantBootstraps.arrayVarHandle
  - BSM_INVOKE
```
public static final DirectMethodHandleDesc BSM_INVOKE
```
    MethodHandleDesc representing ConstantBootstraps.invoke
  - CD_int
```
public static final ClassDesc CD_int
```
    ClassDesc representing the primitive type int
  - CD_long
```
public static final ClassDesc CD_long
```
    ClassDesc representing the primitive type long
  - CD_float
```
public static final ClassDesc CD_float
```
    ClassDesc representing the primitive type float
  - CD_double
```
public static final ClassDesc CD_double
```
    ClassDesc representing the primitive type double
  - CD_short
```
public static final ClassDesc CD_short
```
    ClassDesc representing the primitive type short
  - CD_byte
```
public static final ClassDesc CD_byte
```
    ClassDesc representing the primitive type byte
  - CD_char
```
public static final ClassDesc CD_char
```
    ClassDesc representing the primitive type char
  - CD_boolean
```
public static final ClassDesc CD_boolean
```
    ClassDesc representing the primitive type boolean
  - CD_void
```
public static final ClassDesc CD_void
```
    ClassDesc representing the primitive type void
  - NULL
```
public static final ConstantDesc NULL
```
    Nominal descriptor representing the constant null
- Method Detail
  - ofCallsiteBootstrap
```
public static DirectMethodHandleDesc ofCallsiteBootstrap(ClassDesc owner,
                                                         String name,
                                                         ClassDesc returnType,
                                                         ClassDesc... paramTypes)
```
    Returns a MethodHandleDesc corresponding to a bootstrap method for an invokedynamic callsite, which is a static method whose leading parameter types are Lookup, String, and MethodType.
    
    Parameters:
    
    owner - the class declaring the method
    
    name - the unqualified name of the method
    
    returnType - the return type of the method
    
    paramTypes - the types of the static bootstrap arguments, if any
    
    Returns:
    
    the MethodHandleDesc
    
    Throws:
    
    NullPointerException - if any of the arguments are null
    
    See The Java™ Virtual Machine Specification:
    
    4.2.2 Unqualified Names
  - ofConstantBootstrap
```
public static DirectMethodHandleDesc ofConstantBootstrap(ClassDesc owner,
                                                         String name,
                                                         ClassDesc returnType,
                                                         ClassDesc... paramTypes)
```
    Returns a MethodHandleDesc corresponding to a bootstrap method for a dynamic constant, which is a static method whose leading arguments are Lookup, String, and Class.
    
    Parameters:
    
    owner - the class declaring the method
    
    name - the unqualified name of the method
    
    returnType - the return type of the method
    
    paramTypes - the types of the static bootstrap arguments, if any
    
    Returns:
    
    the MethodHandleDesc
    
    Throws:
    
    NullPointerException - if any of the arguments are null
    
    See The Java™ Virtual Machine Specification:
    
    4.2.2 Unqualified Names

Class ConstantDescs

Field Summary

Method Summary

Methods declared in class java.lang.Object

Field Detail

DEFAULT_NAME

CD_Object

CD_String

CD_Class

CD_Number

CD_Integer

CD_Long

CD_Float

CD_Double

CD_Short

CD_Byte

CD_Character

CD_Boolean

CD_Void

CD_Throwable

CD_Exception

CD_Enum

CD_VarHandle

CD_MethodHandles

CD_MethodHandles_Lookup

CD_MethodHandle

CD_MethodType

CD_CallSite

CD_Collection

CD_List

CD_Set

CD_Map

CD_ConstantDesc

CD_ClassDesc

CD_EnumDesc

CD_MethodTypeDesc

CD_MethodHandleDesc

CD_DirectMethodHandleDesc

CD_VarHandleDesc

CD_MethodHandleDesc_Kind

CD_DynamicConstantDesc

CD_DynamicCallSiteDesc

CD_ConstantBootstraps

BSM_PRIMITIVE_CLASS

BSM_ENUM_CONSTANT

BSM_NULL_CONSTANT

BSM_VARHANDLE_FIELD

BSM_VARHANDLE_STATIC_FIELD

BSM_VARHANDLE_ARRAY

BSM_INVOKE

CD_int

CD_long

CD_float

CD_double

CD_short

CD_byte

CD_char

CD_boolean

CD_void

NULL

Method Detail

ofCallsiteBootstrap

ofConstantBootstrap