Module java.base
Package java.lang.invoke
Interface TypeDescriptor.OfMethod<F extends TypeDescriptor.OfField<F>,M extends TypeDescriptor.OfMethod<F,M>>
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- Type Parameters:
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F
- the type representing field type descriptors -
M
- the class implementing TypeDescriptor.OfMethod
- All Superinterfaces:
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TypeDescriptor
- All Known Subinterfaces:
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MethodTypeDesc
- All Known Implementing Classes:
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MethodType
- Enclosing interface:
- TypeDescriptor
public static interface TypeDescriptor.OfMethod<F extends TypeDescriptor.OfField<F>,M extends TypeDescriptor.OfMethod<F,M>> extends TypeDescriptor
An entity that has a method type descriptor- Since:
- 12
- See The Java™ Virtual Machine Specification :
- 4.3.2 Field Descriptors, 4.3.3 Method Descriptors
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Nested Class Summary
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Nested classes/interfaces inherited from interface java.lang.invoke.TypeDescriptor
TypeDescriptor.OfField<F extends TypeDescriptor.OfField<F>>, TypeDescriptor.OfMethod<F extends TypeDescriptor.OfField<F>,M extends TypeDescriptor.OfMethod<F,M>>
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description 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.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 typeM
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.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.F[]
parameterArray()
Return an array of field descriptors for the parameter types of the method type described by this descriptorint
parameterCount()
Return the number of parameters in the method typeList<F>
parameterList()
Return an immutable list of field descriptors for the parameter types of the method type described by this descriptorF
parameterType(int i)
Return a field descriptor describing the requested parameter of the method type described by this descriptorF
returnType()
Return a field descriptor describing the return type of the method type described by this descriptor-
Methods inherited from interface java.lang.invoke.TypeDescriptor
descriptorString
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Method Detail
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parameterCount
int parameterCount()
Return the number of parameters in the method type- Returns:
- the number of parameters
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parameterType
F parameterType(int i)
Return a field descriptor describing the requested parameter of the method type described by this descriptor- Parameters:
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i
- the index of the parameter - Returns:
- a field descriptor for the requested parameter type
- Throws:
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IndexOutOfBoundsException
- if the index is outside the half-open range {[0, parameterCount)}
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returnType
F returnType()
Return a field descriptor describing the return type of the method type described by this descriptor- Returns:
- a field descriptor for the return type
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parameterArray
F[] parameterArray()
Return an array of field descriptors for the parameter types of the method type described by this descriptor- Returns:
- field descriptors for the parameter types
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parameterList
List<F> parameterList()
Return an immutable list of field descriptors for the parameter types of the method type described by this descriptor- Returns:
- field descriptors for the parameter types
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changeReturnType
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:
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newReturn
- a field descriptor for the new return type - Returns:
- the new method descriptor
- Throws:
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NullPointerException
- if any argument isnull
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changeParameterType
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:
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index
- the index of the parameter to change -
paramType
- a field descriptor describing the new parameter type - Returns:
- the new method descriptor
- Throws:
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NullPointerException
- if any argument isnull
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IndexOutOfBoundsException
- if the index is outside the half-open range {[0, parameterCount)}
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dropParameterTypes
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:
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start
- the index of the first parameter to remove -
end
- the index after the last parameter to remove - Returns:
- the new method descriptor
- Throws:
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IndexOutOfBoundsException
- ifstart
is outside the half-open range[0, parameterCount)
, orend
is outside the closed range[0, parameterCount]
, or ifstart > end
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insertParameterTypes
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:
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pos
- the index at which to insert the first inserted parameter -
paramTypes
- field descriptors describing the new parameter types to insert - Returns:
- the new method descriptor
- Throws:
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NullPointerException
- if any argument isnull
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IndexOutOfBoundsException
- ifpos
is outside the closed range {[0, parameterCount]}
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