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Difference between revisions of "OT Bytecode Attributes/PlayedBy"
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===Intent=== | ===Intent=== | ||
| − | + | This attribute stores the base class a role class is bound to. | |
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The PlayedBy attribute is a fixed-length attribute used in the attributes table of the ClassFile structure. | The PlayedBy attribute is a fixed-length attribute used in the attributes table of the ClassFile structure. | ||
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===Location:=== | ===Location:=== | ||
A role class which, or which super role class, is bound to a base class. | A role class which, or which super role class, is bound to a base class. | ||
Revision as of 03:48, 7 April 2010
Attribute PlayedBy
Intent
This attribute stores the base class a role class is bound to.
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 does not use this attribute at the moment(?).
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.