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.. index:: java_utils_protocol .. _java_utils_protocol/0:
.. rst-class:: right
protocol
java_utils_protocol
Abstract interface to Java utility predicates.
| Availability:
| logtalk_load(java(loader))
| Author: Paulo Moura | Version: 1:6:0 | Date: 2023-03-13
| Compilation flags:
| static
| Dependencies: | (none)
| Remarks: | (none)
| Inherited public predicates: | (none)
.. contents:: :local: :backlinks: top
Public predicates
.. index:: value_reference/2 .. _java_utils_protocol/0::value_reference/2:
value_reference/2 ^^^^^^^^^^^^^^^^^^^^^
Returns an opaque term that represents the Java value with the given name.
| Compilation flags:
| static
| Template:
| value_reference(Value,Reference)
| Mode and number of proofs:
| value_reference(?atom,--ground) - one_or_more
.. index:: true/1 .. _java_utils_protocol/0::true/1:
true/1 ^^^^^^^^^^
Returns an opaque term that represents the Java value true.
| Compilation flags:
| static
| Template:
| true(Reference)
| Mode and number of proofs:
| true(--ground) - one
.. index:: false/1 .. _java_utils_protocol/0::false/1:
false/1 ^^^^^^^^^^^
Returns an opaque term that represents the Java value false.
| Compilation flags:
| static
| Template:
| false(Reference)
| Mode and number of proofs:
| false(--ground) - one
.. index:: void/1 .. _java_utils_protocol/0::void/1:
void/1 ^^^^^^^^^^
Returns an opaque term that represents the Java value void.
| Compilation flags:
| static
| Template:
| void(Reference)
| Mode and number of proofs:
| void(--ground) - one
.. index:: null/1 .. _java_utils_protocol/0::null/1:
null/1 ^^^^^^^^^^
Returns an opaque term that represents the Java value null.
| Compilation flags:
| static
| Template:
| null(Reference)
| Mode and number of proofs:
| null(--ground) - one
.. index:: is_true/1 .. _java_utils_protocol/0::is_true/1:
is_true/1 ^^^^^^^^^^^^^
True when the argument is the Java value true. Fails if the argument is not instantiated.
| Compilation flags:
| static
| Template:
| is_true(Reference)
| Mode and number of proofs:
| is_true(@term) - zero_or_one
.. index:: is_false/1 .. _java_utils_protocol/0::is_false/1:
is_false/1 ^^^^^^^^^^^^^^
True when the argument is the Java value false. Fails if the argument is not instantiated.
| Compilation flags:
| static
| Template:
| is_false(Reference)
| Mode and number of proofs:
| is_false(@term) - zero_or_one
.. index:: is_void/1 .. _java_utils_protocol/0::is_void/1:
is_void/1 ^^^^^^^^^^^^^
True when the argument is the Java value void. Fails if the argument is not instantiated.
| Compilation flags:
| static
| Template:
| is_void(Reference)
| Mode and number of proofs:
| is_void(@term) - zero_or_one
.. index:: is_null/1 .. _java_utils_protocol/0::is_null/1:
is_null/1 ^^^^^^^^^^^^^
True when the argument is the Java value null. Fails if the argument is not instantiated.
| Compilation flags:
| static
| Template:
| is_null(Reference)
| Mode and number of proofs:
| is_null(@term) - zero_or_one
.. index:: is_object/1 .. _java_utils_protocol/0::is_object/1:
is_object/1 ^^^^^^^^^^^^^^^
True when the argument is a reference to a Java object. Fails if the argument is not instantiated.
| Compilation flags:
| static
| Template:
| is_object(Reference)
| Mode and number of proofs:
| is_object(@term) - zero_or_one
.. index:: terms_to_array/2 .. _java_utils_protocol/0::terms_to_array/2:
terms_to_array/2 ^^^^^^^^^^^^^^^^^^^^
Converts a list of ground Prolog terms to an array (a Java reference).
| Compilation flags:
| static
| Template:
| terms_to_array(Terms,Array)
| Mode and number of proofs:
| terms_to_array(++list(ground),-array) - one
.. index:: array_to_terms/3 .. _java_utils_protocol/0::array_to_terms/3:
array_to_terms/3 ^^^^^^^^^^^^^^^^^^^^
Converts an array (a Java reference) to a list of ground Prolog terms returning also its length. The array elements must be atoms, integers, floats, or compound terms. Fails otherwise.
| Compilation flags:
| static
| Template:
| array_to_terms(Array,Terms,Length)
| Mode and number of proofs:
| array_to_terms(+array,-list(ground),-integer) - one
.. index:: array_to_terms/2 .. _java_utils_protocol/0::array_to_terms/2:
array_to_terms/2 ^^^^^^^^^^^^^^^^^^^^
Converts an array (a Java reference) to a list of ground Prolog terms. The array elements must be atoms, integers, floats, or ground compound terms. Fails otherwise.
| Compilation flags:
| static
| Template:
| array_to_terms(Array,Terms)
| Mode and number of proofs:
| array_to_terms(+array,-list(term)) - one
.. index:: array_to_list/2 .. _java_utils_protocol/0::array_to_list/2:
array_to_list/2 ^^^^^^^^^^^^^^^^^^^
Converts an array (a Java reference) to a list of Java references or their values.
| Compilation flags:
| static
| Template:
| array_to_list(Array,List)
| Mode and number of proofs:
| array_to_list(+array,-list) - one
.. index:: list_to_array/2 .. _java_utils_protocol/0::list_to_array/2:
list_to_array/2 ^^^^^^^^^^^^^^^^^^^
Converts a list of Java references or values to an array (a Java reference).
| Compilation flags:
| static
| Template:
| list_to_array(List,Array)
| Mode and number of proofs:
| list_to_array(+list,-array) - one
.. index:: array_list/2 .. _java_utils_protocol/0::array_list/2:
array_list/2 ^^^^^^^^^^^^^^^^
Converts between an array (a Java reference) and a list of Java references or their values. Deprecated. Use the array_to_list/2 and list_to_array/2 predicates instead.
| Compilation flags:
| static
| Template:
| array_list(Array,List)
| Mode and number of proofs:
| array_list(+array,-list) - one
| array_list(-array,+list) - one
.. index:: iterator_element/2 .. _java_utils_protocol/0::iterator_element/2:
iterator_element/2 ^^^^^^^^^^^^^^^^^^^^^^
Enumerates, by backtracking, all iterator elements.
| Compilation flags:
| static
| Template:
| iterator_element(Iterator,Element)
| Mode and number of proofs:
| iterator_element(+iterator,-element) - zero_or_more
.. index:: map_element/2 .. _java_utils_protocol/0::map_element/2:
map_element/2 ^^^^^^^^^^^^^^^^^
Enumerates, by backtracking, all map elements.
| Compilation flags:
| static
| Template:
| map_element(Map,Element)
| Mode and number of proofs:
| map_element(+iterator,-element) - zero_or_more
.. index:: set_element/2 .. _java_utils_protocol/0::set_element/2:
set_element/2 ^^^^^^^^^^^^^^^^^
Enumerates, by backtracking, all set elements.
| Compilation flags:
| static
| Template:
| set_element(Set,Element)
| Mode and number of proofs:
| set_element(+iterator,-element) - zero_or_more
.. index:: decode_exception/2 .. _java_utils_protocol/0::decode_exception/2:
decode_exception/2 ^^^^^^^^^^^^^^^^^^^^^^
Decodes an exception into its corresponding cause. Fails if the exception is not a Java exception.
| Compilation flags:
| static
| Template:
| decode_exception(Exception,Cause)
| Mode and number of proofs:
| decode_exception(+callable,-atom) - zero_or_one
.. index:: decode_exception/3 .. _java_utils_protocol/0::decode_exception/3:
decode_exception/3 ^^^^^^^^^^^^^^^^^^^^^^
Decodes an exception into its corresponding cause and a stack trace. Fails if the exception is not a Java exception.
| Compilation flags:
| static
| Template:
| decode_exception(Exception,Cause,StackTrace)
| Mode and number of proofs:
| decode_exception(+callable,-atom,-list(atom)) - zero_or_one
Protected predicates
(none)
Private predicates
(none)
Operators
(none)