org.ObjectLayout

Class CtorAndArgs<T>

java.lang.Object

org.ObjectLayout.CtorAndArgs<T>

Type Parameters:

T - type of the element occupying each array slot.

public class CtorAndArgs<T>
extends java.lang.Object

Captures a specific constructor and arguments to be passed to it. Useful for providing fully customizable, per-element construction behavior for iterative constructors (such as those used for elements in StructuredArray)

Constructor Summary

Constructors

Constructor and Description
CtorAndArgs(java.lang.Class<T> instanceClass) Create a CtorAndArgs instance for the given instanceClass, using the default constructor (and no args)
CtorAndArgs(java.lang.Class<T> instanceClass, java.lang.Class[] constructorArgTypes, java.lang.Object... args) Create a CtorAndArgs instance for the given instanceClass, with a constructor identified by the constructorArgTypes, and using the args provides.
CtorAndArgs(java.lang.reflect.Constructor<T> constructor, java.lang.Object... args) Create a CtorAndArgs instance.
CtorAndArgs(java.lang.invoke.MethodHandles.Lookup lookup, java.lang.Class<T> instanceClass) Create a CtorAndArgs instance for the given instanceClass, using the default constructor (and no args)
CtorAndArgs(java.lang.invoke.MethodHandles.Lookup lookup, java.lang.Class<T> instanceClass, java.lang.Class[] constructorArgTypes, java.lang.Object... args) Create a CtorAndArgs instance for the given instanceClass, with a constructor identified by the constructorArgTypes, and using the args provides.

Method Summary

Modifier and Type	Method and Description
java.lang.Object[]	getArgs()
java.lang.reflect.Constructor<T>	getConstructor()
java.lang.Object	getContextCookie() Get the value of the opaque contextCookie object
CtorAndArgs<T>	setArgs(java.lang.Object... args) Set the constructor arguments to be indicated in this CtorAndArgs.
CtorAndArgs<T>	setConstructor(java.lang.reflect.Constructor<T> constructor) Set the constructor to be indicated in this CtorAndArgs.
void	setContextCookie(java.lang.Object contextCookie) Set the value of the opaque contextCookie object

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CtorAndArgs

public CtorAndArgs(java.lang.reflect.Constructor<T> constructor,
                   java.lang.Object... args)

Create a CtorAndArgs instance. The presumption is that types in args match those expected by constructor. Obviously exceptions may be generated at construction time if this is not the case.

Parameters:

constructor - Constructor to be indicated in this CtorAndArgs

args - constructor arguments to be indicated in this CtorAndArgs

CtorAndArgs

public CtorAndArgs(java.lang.Class<T> instanceClass,
                   java.lang.Class[] constructorArgTypes,
                   java.lang.Object... args)

Create a CtorAndArgs instance for the given instanceClass, with a constructor identified by the constructorArgTypes, and using the args provides. The presumption is that types in args match those expected by constructor. Obviously exceptions may be generated at construction time if this is not the case.

Parameters:

instanceClass - The class which the constructor in this CtorAndArgs will instantiate

constructorArgTypes - The argument types expected by the constructor

args - constructor arguments to be indicated in this CtorAndArgs

CtorAndArgs

public CtorAndArgs(java.lang.invoke.MethodHandles.Lookup lookup,
                   java.lang.Class<T> instanceClass,
                   java.lang.Class[] constructorArgTypes,
                   java.lang.Object... args)

Create a CtorAndArgs instance for the given instanceClass, with a constructor identified by the constructorArgTypes, and using the args provides. The presumption is that types in args match those expected by constructor. Obviously exceptions may be generated at construction time if this is not the case.

Parameters:

lookup - The lookup object to use when resolving constructors

instanceClass - The class which the constructor in this CtorAndArgs will instantiate

constructorArgTypes - The argument types expected by the constructor

args - constructor arguments to be indicated in this CtorAndArgs

CtorAndArgs

public CtorAndArgs(java.lang.Class<T> instanceClass)

Create a CtorAndArgs instance for the given instanceClass, using the default constructor (and no args)

Parameters:

instanceClass - The class which the constructor in this CtorAndArgs will instantiate

CtorAndArgs

public CtorAndArgs(java.lang.invoke.MethodHandles.Lookup lookup,
                   java.lang.Class<T> instanceClass)

Create a CtorAndArgs instance for the given instanceClass, using the default constructor (and no args)

Parameters:

lookup - The lookup object to use when resolving constructors

instanceClass - The class which the constructor in this CtorAndArgs will instantiate

Method Detail

getConstructor

public final java.lang.reflect.Constructor<T> getConstructor()

Returns:

the Constructor indicated in this CtorAndArgs

setConstructor

public final CtorAndArgs<T> setConstructor(java.lang.reflect.Constructor<T> constructor)

Set the constructor to be indicated in this CtorAndArgs. Enables recycling of CtorAndArgs objects to avoid re-allocation. E.g. in copy construction loops.

Parameters:

constructor - Constructor to be indicated in this CtorAndArgs

Returns:

the CtorAndArgs instance operated on

getArgs

public final java.lang.Object[] getArgs()

Returns:

the constructor arguments indicated in this CtorAndArgs

setArgs

public final CtorAndArgs<T> setArgs(java.lang.Object... args)

Set the constructor arguments to be indicated in this CtorAndArgs. Enables recycling of CtorAndArgs objects to avoid re-allocation. E.g. in copy construction loops.

Parameters:

args - constructor arguments to be indicated in this CtorAndArgs

Returns:

the CtorAndArgs instance operated on

getContextCookie

public java.lang.Object getContextCookie()

Get the value of the opaque contextCookie object

Returns:

opaque contextCookie object (may be null)

setContextCookie

public void setContextCookie(java.lang.Object contextCookie)

Set the value of the opaque contextCookie object

Parameters:

contextCookie - carries an opaque object