# Interface ConstantValueAttribute

All Superinterfaces:
  `Attribute<ConstantValueAttribute>, ClassFileElement, FieldElement`

public sealed interface ConstantValueAttribute extends Attribute<ConstantValueAttribute>, FieldElement
Models the `ConstantValue` attribute (JVMS 4.7.2), which indicates this field's value is a constant and that constant value.

This attribute only appears on fields, and does not permit multiple instances in a field. It has a data dependency on the constant pool.

This attribute was introduced in the Java Platform version 1.0.2, major version 45.

See Java Virtual Machine Specification:
  4.7.2 The `ConstantValue` Attribute
Since:
  24
See Also:
  - `Attributes.constantValue()`

## Method Summary

Modifier and Type
Method
Description
`ConstantValueEntry`
`constant()`
Returns the constant value of the field.
`static ConstantValueAttribute`
`of(ConstantValueEntry value)`
Returns a `ConstantValue` attribute.
`static ConstantValueAttribute`
`of(ConstantDesc value)`
Returns a `ConstantValue` attribute.

### Methods declared in interface Attribute

`attributeMapper, attributeName`

## Method Details

### constant

ConstantValueEntry constant()
Returns the constant value of the field.

Returns:
  the constant value of the field

### of

static ConstantValueAttribute of(ConstantValueEntry value)
Returns a `ConstantValue` attribute.

Parameters:
  `value` - the constant value
Returns:
  a `ConstantValue` attribute

### of

static ConstantValueAttribute of(ConstantDesc value)
Returns a `ConstantValue` attribute.

Parameters:
  `value` - the constant value
Returns:
  a `ConstantValue` attribute