153 lines
5.9 KiB
HTML
153 lines
5.9 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<html>
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<head>
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<meta http-equiv="CONTENT-TYPE"
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content="text/html; charset=windows-1252">
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<title>JPL 3.0 documentation home page</title>
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<meta name="GENERATOR" content="StarOffice 7 (Win32)">
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<meta name="AUTHOR" content="Paul Singleton">
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<meta name="CREATED" content="20040216;23081326">
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<meta name="CHANGEDBY" content="Paul Singleton">
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<meta name="CHANGED" content="20040216;23141923">
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</head>
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<body lang="en-US" dir="ltr">
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<h1><span style="font-style: italic;">JPL 3.x</span> documentation home
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page</h1>
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<hr>
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<h2>Introduction</h2>
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<p><b style="font-style: italic;">JPL 3.x</b> is a dynamic,
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bidirectional interface
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between <i>SWI-Prolog 5.2.0</i> or later and <i>Java 2</i>
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runtimes (see <a href="docs/objectives.html"><span
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style="font-weight: bold;"><span style="font-style: italic;">JPL 3.x</span>
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Objectives</span></a>). It offers two APIs: </p>
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<ul>
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<li>
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<p style="margin-bottom: 0cm;"><span style="font-weight: bold;">Java
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API</span><i> (Java-calls-Prolog)</i>: this
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interface comprises public Java classes which support: </p>
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<ul>
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<li>
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<p style="margin-bottom: 0cm;">constructing Java
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representations of Prolog terms and queries </p>
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</li>
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<li>
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<p style="margin-bottom: 0cm;">calling queries within <i>SWI-Prolog</i>
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engines </p>
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</li>
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<li>
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<p>retrieving (as Java representations of Prolog terms) any
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bindings created by a call </p>
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</li>
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</ul>
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</li>
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</ul>
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<ul>
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<li>
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<p style="margin-bottom: 0cm;"><span style="font-weight: bold;">Prolog
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API</span><i> (Prolog-calls-Java)</i>: this
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interface comprises Prolog library predicates which support: </p>
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<ul>
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<li>
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<p style="margin-bottom: 0cm;">creating instances (objects) of
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Java classes (built-in and user-defined) </p>
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</li>
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<li>
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<p style="margin-bottom: 0cm;">calling methods of Java objects
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(and static methods of classes), perhaps returning values or object
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references </p>
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</li>
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<li>
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<p>getting and setting the values of fields of Java objects and
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classes </p>
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</li>
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</ul>
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</li>
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</ul>
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<p style="margin-bottom: 0cm;">Calls to the two APIs can be nested,
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e.g. Java code can call Prolog predicates which call Java methods
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which call Prolog predicates etc. </p>
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<hr>
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<h2>Prerequisites</h2>
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<p><b><i>JPL 3.x</i></b> currently requires <i>SWI-Prolog 5.2.0</i>
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or later (it uses multi-threading FLI calls not available in older
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versions). If you are using <i>SWI-Prolog 5.1.X</i>, then
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you should probably upgrade to the latest stable <i>5.2.X</i>
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release. Support for earlier versions may be added in the
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future. </p>
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<p><b><i>JPL 3.x</i></b> currently requires a <i>Java 2</i>
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runtime (or development kit), and has been tested with
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Sun's <font face="monospace">jdk1.3.1_01</font>. </p>
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<p><b><i>JPL 3.x</i></b> contains a native library (<font
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face="monospace">jpl.c</font>)
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written in <i>ANSI/ISO C</i> and designed to be portable to many
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operating system platforms for which suitable compilers are
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available. It has, however, only been tested with <i>Microsoft
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Visual C/C++ 5</i> under <i>Windows NT 4.0 (SP6a)</i>. I
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shall be grateful if anyone can (show me how to) tidily adapt the
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source and makefiles to build for other platforms. </p>
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<hr>
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<h2>Documentation</h2>
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<p>This alpha release of <b><i>JPL 3.x</i></b> contains a
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hotch-potch of documentation, some left over from Fred Dushin's
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(Java-calls-Prolog)<i> JPL 1.0.1</i> and now obsolete or misleading,
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some rewritten for <i>JPL 2.0.2</i> and still mostly applicable,
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and some written for the first release of my Prolog-calls-Java
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interface, now part of <b><i>JPL</i></b>, and also mostly still
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relevant.<br>
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</p>
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<p>In addition to this document (index.html in jpl's root folder) there
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are:<br>
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</p>
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<ul>
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<li><a href="docs/release_notes.html"><b>Release Notes</b></a><b>
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for 3.0.3, 3.0.2, 3.0.0 and 2.0.2</b></li>
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<li><a href="docs/installation.html"><b>Installation</b></a></li>
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<li><b>Java API:<br>
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</b></li>
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<ul>
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<li><a href="docs/java_api/javadoc/index.html"><b>Reference
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(Javadoc)</b></a></li>
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<li><a href="docs/java_api/high-level_interface.html"><span
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style="font-weight: bold;">Overview</span></a></li>
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<li><b><a href="docs/java_api/gotchas.html"><b>Gotchas</b></a></b></li>
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<li><b><a href="docs/java_api/getting_started.html"><b>Getting
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Started</b></a></b></li>
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</ul>
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<li><b><b>Prolog API:</b></b></li>
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<ul>
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<li><a href="docs/prolog_api/api.html"><span
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style="font-weight: bold;">Reference</span></a></li>
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<li><a href="docs/prolog_api/overview/index.html"><b>Overview</b></a></li>
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<li><a href="docs/prolog_api/gotchas.html"><b>Gotchas</b></a></li>
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</ul>
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</ul>
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<p> </p>
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<hr>
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<h2>Installation</h2>
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<p>Put the three library files (<var>jpl.dll</var>, <var>jpl.jar</var>
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and <var>jpl.pl</var>) where they can be found by your OS, by your
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Java apps and by SWI-Prolog respectively; for details, see <a
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href="docs/installation.html"><b><i>JPL
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3.x</i> Installation</b></a>.</p>
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<hr>
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<h2>Testing</h2>
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<p>Each of the folders within <font face="monospace">jpl\examples\java</font>
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contains a simple <i>Java </i>application which tests some
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aspect of <b><i>JPL</i></b>. These applications are
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already compiled, and each folder contains a (<i>DOS/Windows</i>)
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script <font face="monospace">run.bat</font> which announces and
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runs the demo.<br>
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<br>
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Each of the Prolog source files within <span
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style="font-family: monospace;">jpl/examples/prolog</span> contains a
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self-contained Prolog application which exercises JPL from within
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Prolog; start an interactive SWI-Prolog session as usual, and then
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consult and run these files.<br>
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</p>
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<hr>
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<address><a href="mailto:paul.singleton@bcs.org.uk">Paul Singleton</a></address>
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<address>February 2004</address>
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</body>
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</html>
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