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Predicate jpl_null/1
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JPL: A bidirectional Prolog/Java interface
library(jpl): A Java interface for SWI Prolog 7.x
jpl_new/3
jpl_call/4
jpl_get/3
jpl_set/3
jpl_get_default_jvm_opts/1
jpl_set_default_jvm_opts/1
jpl_get_actual_jvm_opts/1
jpl_pl_lib_version/1
jpl_c_lib_version/1
jpl_class_to_classname/2
jpl_class_to_type/2
jpl_classname_to_class/2
jpl_entityname_to_type/2
jpl_type_to_entityname/2
jpl_classname_to_type/2
jpl_type_to_classname/2
jpl_datum_to_type/2
jpl_object_to_class/2
jpl_object_to_type/2
jpl_primitive_type/1
jpl_ref_to_type/2
jpl_type_to_class/2
jpl_is_class/1
jpl_is_false/1
jpl_is_null/1
jpl_is_object/1
jpl_is_object_type/1
jpl_is_ref/1
jpl_is_true/1
jpl_is_type/1
jpl_is_void/1
jpl_false/1
jpl_null/1
jpl_true/1
jpl_void/1
jpl_array_to_length/2
jpl_array_to_list/2
jpl_datums_to_array/2
jpl_enumeration_element/2
jpl_enumeration_to_list/2
jpl_hashtable_pair/2
jpl_iterator_element/2
jpl_list_to_array/2
jpl_terms_to_array/2
jpl_array_to_terms/2
jpl_map_element/2
jpl_set_element/2
jpl_servlet_byref/3
jpl_servlet_byval/3
jpl_pl_syntax/1
Availability:
:- use_module(
library(jpl)
).
(can be autoloaded)
[semidet]
jpl_null
(
-X:datum
)
X
is
@(null)
, the JPL representation of Java's’null’reference.
See also
jpl_is_null/1