org.springframework.asm

Class ConstantDynamic

java.lang.Object

org.springframework.asm.ConstantDynamic

public final class ConstantDynamic
extends java.lang.Object

A constant whose value is computed at runtime, with a bootstrap method.

Author:

Remi Forax

Field Summary

Fields

Modifier and Type	Field and Description
private Handle	bootstrapMethod The bootstrap method to use to compute the constant value at runtime.
private java.lang.Object[]	bootstrapMethodArguments The arguments to pass to the bootstrap method, in order to compute the constant value at runtime.
private java.lang.String	descriptor The constant type (must be a field descriptor).
private java.lang.String	name The constant name (can be arbitrary).

Constructor Summary

Constructors

Constructor and Description
ConstantDynamic(java.lang.String name, java.lang.String descriptor, Handle bootstrapMethod, java.lang.Object... bootstrapMethodArguments) Constructs a new ConstantDynamic.

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object object)
Handle	getBootstrapMethod() Returns the bootstrap method used to compute the value of this constant.
java.lang.Object	getBootstrapMethodArgument(int index) Returns an argument passed to the bootstrap method, in order to compute the value of this constant.
int	getBootstrapMethodArgumentCount() Returns the number of arguments passed to the bootstrap method, in order to compute the value of this constant.
(package private) java.lang.Object[]	getBootstrapMethodArgumentsUnsafe() Returns the arguments to pass to the bootstrap method, in order to compute the value of this constant.
java.lang.String	getDescriptor() Returns the type of this constant.
java.lang.String	getName() Returns the name of this constant.
int	getSize() Returns the size of this constant.
int	hashCode()
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

name

private final java.lang.String name

The constant name (can be arbitrary).

descriptor

private final java.lang.String descriptor

The constant type (must be a field descriptor).

bootstrapMethod

private final Handle bootstrapMethod

The bootstrap method to use to compute the constant value at runtime.

bootstrapMethodArguments

private final java.lang.Object[] bootstrapMethodArguments

The arguments to pass to the bootstrap method, in order to compute the constant value at runtime.

Constructor Detail

ConstantDynamic

public ConstantDynamic(java.lang.String name,
                       java.lang.String descriptor,
                       Handle bootstrapMethod,
                       java.lang.Object... bootstrapMethodArguments)

Constructs a new ConstantDynamic.

Parameters:

name - the constant name (can be arbitrary).

descriptor - the constant type (must be a field descriptor).

bootstrapMethod - the bootstrap method to use to compute the constant value at runtime.

bootstrapMethodArguments - the arguments to pass to the bootstrap method, in order to compute the constant value at runtime.

Method Detail

getName

public java.lang.String getName()

Returns the name of this constant.

Returns:

the name of this constant.

getDescriptor

public java.lang.String getDescriptor()

Returns the type of this constant.

Returns:

the type of this constant, as a field descriptor.

getBootstrapMethod

public Handle getBootstrapMethod()

Returns the bootstrap method used to compute the value of this constant.

Returns:

the bootstrap method used to compute the value of this constant.

getBootstrapMethodArgumentCount

public int getBootstrapMethodArgumentCount()

Returns the number of arguments passed to the bootstrap method, in order to compute the value of this constant.

Returns:

the number of arguments passed to the bootstrap method, in order to compute the value of this constant.

getBootstrapMethodArgument

public java.lang.Object getBootstrapMethodArgument(int index)

Returns an argument passed to the bootstrap method, in order to compute the value of this constant.

Parameters:

index - an argument index, between 0 and getBootstrapMethodArgumentCount() (exclusive).

Returns:

the argument passed to the bootstrap method, with the given index.

getBootstrapMethodArgumentsUnsafe

java.lang.Object[] getBootstrapMethodArgumentsUnsafe()

Returns the arguments to pass to the bootstrap method, in order to compute the value of this constant. WARNING: this array must not be modified, and must not be returned to the user.

Returns:

the arguments to pass to the bootstrap method, in order to compute the value of this constant.

getSize

public int getSize()

Returns the size of this constant.

Returns:

the size of this constant, i.e., 2 for long and double, 1 otherwise.

equals

public boolean equals(java.lang.Object object)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object