Name
java_get_property — Gets a property value from a Java class instance.
Synopsis
java_get_property
(
|
in class_name varchar , |
| in instance_obj varchar , | |
| in field_name varchar , | |
in
field_ret_type_sig
varchar
); |
Description
Gets a property value from a Java class instance referenced by instance_obj. If instance_obj is not supplied, ie NULL, then it is returned as a static Java class property value.
Parameters
class_name
the name of the java class to get the property from
instance_obj
the Java VM class instance reference value (for example returned by java_new_object VSEI). Can be NULL.
field_name
the name of the field in the java class
field_ret_type_sig
the JNI type signature of the field.
Examples
Example 24.195. static value - Java's PI value returned as DOUBLE PRECISION
java_get_property ('java.lang.Math', NULL, 'PI', 'D');
Example 24.196. default time zone name in tz_name
tz := java_call_method ('java.util.TimeZone', NULL, 'getDefault', 'Ljava/util/TimeZone;');
tz_name := java_get_property ('java.util.TimeZone', tz, 'getDisplayName', 'Ljava/lang/String;');