Added in API level 34

Summary: Methods | Inherited Methods

TypeDescriptor.OfMethod

public static interface TypeDescriptor.OfMethod
implements TypeDescriptor

java.lang.invoke.TypeDescriptor.OfMethod<F extends java.lang.invoke.TypeDescriptor.OfField<F>, M extends java.lang.invoke.TypeDescriptor.OfMethod<F, M>>

Known indirect subclasses

MethodType

MethodType A method type represents the arguments and return type accepted and returned by a method handle, or the arguments and return type passed and expected by a method handle caller.

An entity that has a method type descriptor Method descriptors conforming to JVMS {@jvms 4.3.3} can be described

Summary

Public methods
`abstract M`	`changeParameterType(int index, F paramType)` Return a method descriptor that is identical to this one, except that a single parameter type has been changed to the specified type.
`abstract M`	`changeReturnType(F newReturn)` Return a method descriptor that is identical to this one, except that the return type has been changed to the specified type
`abstract M`	`dropParameterTypes(int start, int end)` Return a method descriptor that is identical to this one, except that a range of parameter types have been removed.
`abstract M`	`insertParameterTypes(int pos, F... paramTypes)` Return a method descriptor that is identical to this one, except that a range of additional parameter types have been inserted.
`abstract F[]`	`parameterArray()` Return an array of field descriptors for the parameter types of the method type described by this descriptor
`abstract int`	`parameterCount()` Return the number of parameters in the method type
`abstract List<F>`	`parameterList()` Return an immutable list of field descriptors for the parameter types of the method type described by this descriptor
`abstract F`	`parameterType(int i)` Return a field descriptor describing the requested parameter of the method type described by this descriptor
`abstract F`	`returnType()` Return a field descriptor describing the return type of the method type described by this descriptor

Inherited methods

From interface


        
          java.lang.invoke.TypeDescriptor


        abstract
        
        
        
        
        String


      descriptorString()

Returns the descriptor string for this TypeDescriptor object.

Public methods

changeParameterType

Added in API level 34

public abstract M changeParameterType (int index, 
                F paramType)

Return a method descriptor that is identical to this one, except that a single parameter type has been changed to the specified type.

Parameters
`index`	`int`: the index of the parameter to change
`paramType`	`F`: a field descriptor describing the new parameter type

Returns
`M`	the new method descriptor

Throws
`NullPointerException`	if any argument is `null`
`IndexOutOfBoundsException`	if the index is outside the half-open range {[0, parameterCount)}

changeReturnType

Added in API level 34

public abstract M changeReturnType (F newReturn)

Return a method descriptor that is identical to this one, except that the return type has been changed to the specified type

Parameters
`newReturn`	`F`: a field descriptor for the new return type

Returns
`M`	the new method descriptor

Throws
`NullPointerException`	if any argument is `null`

dropParameterTypes

Added in API level 34

public abstract M dropParameterTypes (int start, 
                int end)

Return a method descriptor that is identical to this one, except that a range of parameter types have been removed.

Parameters
`start`	`int`: the index of the first parameter to remove
`end`	`int`: the index after the last parameter to remove

Returns
`M`	the new method descriptor

Throws
`IndexOutOfBoundsException`	if `start` is outside the half-open range `[0, parameterCount)`, or `end` is outside the closed range `[0, parameterCount]`, or if `start > end`

insertParameterTypes

Added in API level 34

public abstract M insertParameterTypes (int pos, 
                F... paramTypes)

Return a method descriptor that is identical to this one, except that a range of additional parameter types have been inserted.

Parameters
`pos`	`int`: the index at which to insert the first inserted parameter
`paramTypes`	`F`: field descriptors describing the new parameter types to insert

Returns
`M`	the new method descriptor

Throws
`NullPointerException`	if any argument is `null`
`IndexOutOfBoundsException`	if `pos` is outside the closed range {[0, parameterCount]}

parameterArray

Added in API level 34

public abstract F[] parameterArray ()

Return an array of field descriptors for the parameter types of the method type described by this descriptor

Returns
`F[]`	field descriptors for the parameter types

parameterCount

Added in API level 34

public abstract int parameterCount ()

Return the number of parameters in the method type

Returns
`int`	the number of parameters

parameterList

Added in API level 34

public abstract List<F> parameterList ()

Return an immutable list of field descriptors for the parameter types of the method type described by this descriptor

Returns
`List<F>`	field descriptors for the parameter types

parameterType

Added in API level 34

public abstract F parameterType (int i)

Return a field descriptor describing the requested parameter of the method type described by this descriptor

Parameters
`i`	`int`: the index of the parameter

Returns
`F`	a field descriptor for the requested parameter type

Throws
`IndexOutOfBoundsException`	if the index is outside the half-open range {[0, parameterCount)}

returnType

Added in API level 34

public abstract F returnType ()

Return a field descriptor describing the return type of the method type described by this descriptor

Returns
`F`	a field descriptor for the return type