Interface AttributedElement

All Superinterfaces:: ClassFileElement

All Known Subinterfaces:: ClassModel, CodeAttribute, CodeModel, FieldModel, MethodModel, RecordComponentInfo

public sealed interface AttributedElement extends ClassFileElement permits ClassModel, CodeModel, FieldModel, MethodModel, RecordComponentInfo (not exhaustive)

A ClassFileElement describing a class file structure that has attributes, such as a class file, a field, a method, a Code attribute, or a record component.

Unless otherwise specified, most attributes that can be discovered in a CompoundElement implements the corresponding membership subinterface of ClassFileElement, and can be sent to a ClassFileBuilder to be integrated into the built structure.

See Java Virtual Machine Specification:

4.7 Attributes

Sealed Class Hierarchy Graph:

Since:

See Also:

Method Summary

Modifier and Type	Method	Description
`List<Attribute<?>>`	`attributes()`	Returns the attributes of this structure.
`default <T extends Attribute<T>> Optional<T>`	`findAttribute(AttributeMapper<T> attr)`	Finds an attribute by name.
`default <T extends Attribute<T>> List<T>`	`findAttributes(AttributeMapper<T> attr)`	Finds attributes by name.

Method Details

attributes

List<Attribute<?>> attributes()

Returns the attributes of this structure.

Returns:: the attributes of this structure

findAttribute

default <T extends Attribute<T>> Optional<T> findAttribute(AttributeMapper<T> attr)

Finds an attribute by name. This is suitable to find attributes that allow at most one instance in one structure. If this is used to find attributes that allow multiple instances in one structure, the first matching instance is returned.

API Note:

This can easily find an attribute and send it to another ClassFileBuilder, which is a Consumer:

MethodModel method = ...
MethodBuilder mb = ...
method.findAttribute(Attributes.code()).ifPresent(mb);

Type Parameters:

T - the type of the attribute

Parameters:

attr - the attribute mapper

Returns:

the attribute, or Optional.empty() if the attribute is not present

findAttributes

default <T extends Attribute<T>> List<T> findAttributes(AttributeMapper<T> attr)

Finds attributes by name. This is suitable to find attributes that allow multiple instances in one structure.

Type Parameters:: T - the type of the attribute
Parameters:: attr - the attribute mapper
Returns:: the attributes, or an empty List if the attribute is not present

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https://docs.oracle.com/en/java/javase/25/docs/api/java.base/java/lang/classfile/AttributedElement.html