OT Bytecode Attributes/PlayedBy

Attribute PlayedBy

Intent

The PlayedBy attribute is a fixed-length attribute used in the attributes table of the ClassFile structure.

Location:

A role class which, or which super role class, is bound to a base class.

Content:

The name of the bound base class.

Purpose:

The OTRE uses this attribute to

Format:

    PlayedBy {
     u2 attribute_name_index;
     u4 attribute_length;
     u2 base_class_name_index;
    }

The items of the PlayedBy structure are as follows:

• attribute_name_index

The constant_pool entry at that index must be a CONSTANT_Utf8_info representing the string "CallinRoleBaseBindings".

• attribute_length

The value of the attribute_length item indicates the length of the attribute, excluding the initial six bytes.

• base_class_name_index

The constant_pool index representing the fully qualified name of the base class, as given in the source code from which this class file was compiled.