#'jfield

Arguments: class-ref-or-field field-or-instance &optional instance value

This function retrieves or modifies a field in a Java class or instance.

The valid argument patterns for this operation are:

class-ref field-name: to retrieve the value of a static field.

class-ref field-name instance-ref: to retrieve the value of a class field of the instance.

class-ref field-name primitive-value: to store primitive-value in a static field.

class-ref field-name instance-ref value: to store value in a class field of the instance.

class-ref field-name nil value: to store value in a static field (when value may be confused with an instance-ref).

field-name instance: to retrieve the value of a field of the instance. The class is derived from the instance.

field-name instance value: to store value in a field of the instance. The class is derived from the instance.

See jlinker.htm for more information.

On Tue, Feb 9, 2010 at 7:15 PM, Blake McBride <blake@mcbride.name> wrote:

Greetings,

I know how to gain access to and execute Java methods via jmethod and jcall, however, I don't know how to get and set instance and static fields (or variables) within a Java class. Any help would be greatly appreciated.

BTW, I've now got a Lisp macro that maps all the methods in a Java class into a corresponding CLOS class.

Thanks.

Blake McBride

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