| <html><head><meta charset="utf-8"></meta><meta name="viewport" content="width=device-width, initial-scale=1"></meta><title>NCConversation</title><link rel="shortcut icon" type="image/x-icon" href="../../../favicon.ico"></link><script type="text/javascript" src="../../../scripts/theme.js"></script><script type="text/javascript" src="../../../scripts/searchData.js" defer="true"></script><script type="text/javascript" src="../../../scripts/scastieConfiguration.js" defer="true"></script><link rel="stylesheet" href="../../../styles/nord-light.css"></link><link rel="stylesheet" href="../../../styles/scalastyle.css"></link><link rel="stylesheet" href="../../../styles/colors.css"></link><link rel="stylesheet" href="../../../styles/dotty-icons.css"></link><link rel="stylesheet" href="../../../styles/diagram.css"></link><link rel="stylesheet" href="../../../styles/filter-bar.css"></link><link rel="stylesheet" href="../../../styles/code-snippets.css"></link><link rel="stylesheet" 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href="nlp/parsers.html"><span class="micon pa"></span><span>org.apache.nlpcraft.nlp.parsers</span></a></span><div class="ni "><span class="nh "><a href="nlp/parsers/NCNLPEntityParser.html"><span class="micon cl"></span><span>NCNLPEntityParser</span></a></span></div><div class="ni "><span class="nh "><a href="nlp/parsers/NCOpenNLPEntityParser.html"><span class="micon cl"></span><span>NCOpenNLPEntityParser</span></a></span></div><div class="ni "><span class="nh "><a href="nlp/parsers/NCOpenNLPTokenParser.html"><span class="micon cl"></span><span>NCOpenNLPTokenParser</span></a></span></div><div class="ni "><span class="nh "><a href="nlp/parsers/NCSemanticElement.html"><span class="micon tr"></span><span>NCSemanticElement</span></a></span></div><div class="ni "><span class="nh "><a href="nlp/parsers/NCSemanticEntityParser.html"><span class="micon cl"></span><span>NCSemanticEntityParser</span></a></span></div></div><div class="ni"><span class="nh "><span class="ar"></span><a href="nlp/stemmer.html"><span class="micon pa"></span><span>org.apache.nlpcraft.nlp.stemmer</span></a></span><div class="ni "><span class="nh "><a href="nlp/stemmer/NCEnStemmer.html"><span class="micon cl"></span><span>NCEnStemmer</span></a></span></div><div class="ni "><span class="nh "><a href="nlp/stemmer/NCStemmer.html"><span class="micon tr"></span><span>NCStemmer</span></a></span></div></div></div></nav></div><div id="main"><div id="leftToggler"><span class="icon-toggler"></span></div><div id="scaladoc-searchBar"></div><main id="main-content"><div class="breadcrumbs container"><a href="../../../index.html">NLPCraft</a>/<a href="../nlpcraft.html">org.apache.nlpcraft</a>/<a href="NCConversation.html">NCConversation</a></div><div id="content"><div><div class="cover-header"><span class="micon tr"></span><h1>NCConversation</h1></div><div class="signature monospace"><span class="annotations monospace"></span><div class="signature"><span class="modifiers"></span><span class="kind"><span t="k">trait </span></span><a href="NCConversation.html" class="documentableName ">NCConversation</a><span></span></div></div><div class="cover"><div class="doc"><p>Conversation container. Conversation contains everything that should be implicitly remembered |
| during the active, ongoing conversation and forgotten once the conversation ends or timed out. |
| Conversation contains the following elements:</p> |
| <ul> |
| <li>List of entities comprising a "short-term-memory" (STM) of this conversation.</li> |
| <li>Chronological list of previously matched intents.</li> |
| <li>Auto-expiring user data.</li> |
| </ul> |
| <p>Note that the conversation is unique for given combination of user and data model.</p> |
| <p>Conversation management is based on idea of a "short-term-memory" (STM). STM can be viewed as a condensed |
| short-term history of the input for a given user and data model. Every submitted user request that wasn't |
| rejected is added to the conversation STM as a list of tokens. Existing STM tokens belonging to the same |
| group will be overridden by the more recent tokens from the same group. Note also that tokens in STM automatically |
| expire (i.e. context is "forgotten") after a certain period of time and/or based on the depth of the |
| conversation since the last mention.</p> |
| <p>You can also maintain user state-machine between requests using conversation's session. Conversation's |
| <a href="NCConversation.html#getData-0">data</a> is a mutable thread-safe container that can hold any arbitrary user data |
| while supporting the same expiration logic as the rest of the conversation elements (i.e. tokens and |
| previously matched intent IDs).</p> |
| <p>Conversation expiration policy is configured by two configuration properties:</p> |
| <ul> |
| <li><a href="NCModelConfig.html#getConversationDepth-0">NCModelConfig.getConversationDepth</a></li> |
| <li><a href="NCModelConfig.html#getConversationTimeout-0">NCModelConfig.getConversationTimeout</a></li> |
| </ul> |
| </div><dl class="attributes"><dt>See also:</dt><dd><div><div><p><a href="NCContext.html#getConversation-0">NCContext.getConversation</a></p> |
| </div><div><p><a href="NCModelConfig.html#getConversationDepth-0">NCModelConfig.getConversationDepth</a></p> |
| </div><div><p><a href="NCModelConfig.html#getConversationTimeout-0">NCModelConfig.getConversationTimeout</a></p> |
| </div></div></dd><dt>Source:</dt><dd><a href="https://github.com/apache/incubator-nlpcraft/blob/master/nlpcraft/src/main/scala/org/apache/nlpcraft/NCConversation.scala#L50">NCConversation.scala</a></dd></dl></div><div class="tabs single"><div class="names"><button data-togglable="graph" class="tab showGraph">Graph</button><button data-togglable="supertypes" class="tab ">Supertypes</button></div><div class="contents"><div data-togglable="graph" class="tab showGraph"><div id="inheritance-diagram" class="diagram-class showGraph"><input value="Reset zoom" type="button" class="btn" onclick="zoomOut()"></input><svg id="graph"></svg><script type="text/dot" id="dot"> digraph g { |
| node0 [id=node0, label="<span style=\"color: #FFFFFF;\">trait <a href=\"NCConversation.html\" t=\"t\">NCConversation</a></span>", style="fill: #1CAACF;"]; |
| node1 [id=node1, label="<span style=\"color: #FFFFFF;\">class <span data-unresolved-link=\"\" t=\"t\">Object</span></span>", style="fill: #45AD7D;"]; |
| node2 [id=node2, label="<span style=\"color: #FFFFFF;\">class <span data-unresolved-link=\"\" t=\"t\">Any</span></span>", style="fill: #45AD7D;"]; |
| node3 [id=node3, label="<span style=\"color: #FFFFFF;\">trait <span data-unresolved-link=\"\" t=\"t\">Matchable</span></span>", style="fill: #1CAACF;"]; |
| |
| |
| node0 -> node1; |
| node1 -> node2; |
| node1 -> node3; |
| node3 -> node2; |
| |
| } |
| </script></div></div><div data-togglable="supertypes" class="tab "><div class="symbol monospace"><div>class <span data-unresolved-link="" t="t">Object</span></div><div>trait <span data-unresolved-link="" t="t">Matchable</span></div><div>class <span data-unresolved-link="" t="t">Any</span></div></div></div></div></div><div class="documentableFilter"><div class="filterUpperContainer"><button class="filterToggleButton" data-test-id="filterToggleButton"> |
| <svg xmlns="http://www.w3.org/2000/svg" height="24" viewBox="0 0 24 24" width="24"> |
| <path d="M0 0h24v24H0z" fill="none"/> |
| <path d="M10 6L8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z"/> |
| </svg> |
| </button><input class="filterableInput" placeholder="Filter all members" data-test-id="filterBarInput"></input></div><div class="filterLowerContainer"></div></div><div class="membersList"><div class="tabs"><div class="names"><button data-togglable="Value members" class="tab selected">Value members</button></div><div class="contents"><div data-togglable="Value members" class="tab selected"><h2 data-togglable="Value members">Value members</h2><div class="documentableList"><h3 class="groupHeader">Abstract methods</h3><div class="documentableElement" id="clearDialog-c9d"><a link="NCConversation.html#clearDialog-c9d" class="documentableAnchor"></a><div><span class="annotations monospace"></span></div><div class="header monospace"><div class="signature"><span class="modifiers"></span><span class="kind"><span t="k">def </span></span><a href="NCConversation.html#clearDialog-c9d" class="documentableName ">clearDialog</a><span>(<span t="k"></span><span t="k"></span>filter: <a href="NCDialogFlowItem.html" t="t">NCDialogFlowItem</a><span t="k"> => </span><a href="https://www.scala-lang.org/api/2.13.8/scala/Boolean.html" t="t">Boolean</a>): <a href="https://www.scala-lang.org/api/2.13.8/scala/Unit.html" t="t">Unit</a></span></div></div><div class="docs"><span class="modifiers"></span><div><div class="originInfo"></div><div class="memberDocumentation"><div class="documentableBrief doc"><p>Removes all previously matched intents using given dialog flow item predicate.</p> |
| </div><div class="cover"><div class="doc"><p>Removes all previously matched intents using given dialog flow item predicate.</p> |
| <p>History of matched intents (i.e. the dialog flow) can be used in intent definition as part of its |
| matching template. NLPCraft maintains the window of previously matched intents based on time, i.e. |
| after certain period of time the oldest previously matched intents are forgotten and removed from |
| dialog flow. This method allows explicitly clear previously matched intents from the |
| dialog flow based on user logic other than time window.</p> |
| </div><dl class="attributes"><dt>Value parameters:</dt><dd><dl class="attributes"><dt>filter</dt><dd><p>Dialog flow filter.</p> |
| </dd></dl></dd><dt>Source:</dt><dd><a href="https://github.com/apache/incubator-nlpcraft/blob/master/nlpcraft/src/main/scala/org/apache/nlpcraft/NCConversation.scala#L106">NCConversation.scala</a></dd></dl></div></div></div></div></div><div class="documentableElement" id="clearStm-c9d"><a link="NCConversation.html#clearStm-c9d" class="documentableAnchor"></a><div><span class="annotations monospace"></span></div><div class="header monospace"><div class="signature"><span class="modifiers"></span><span class="kind"><span t="k">def </span></span><a href="NCConversation.html#clearStm-c9d" class="documentableName ">clearStm</a><span>(<span t="k"></span><span t="k"></span>filter: <a href="NCEntity.html" t="t">NCEntity</a><span t="k"> => </span><a href="https://www.scala-lang.org/api/2.13.8/scala/Boolean.html" t="t">Boolean</a>): <a href="https://www.scala-lang.org/api/2.13.8/scala/Unit.html" t="t">Unit</a></span></div></div><div class="docs"><span class="modifiers"></span><div><div class="originInfo"></div><div class="memberDocumentation"><div class="documentableBrief doc"><p>Removes all entities satisfying given predicate from the conversation STM. This is particularly useful when the |
| logic processing the user input makes an implicit assumption not present in the user input itself. Such |
| assumption may alter the conversation (without having an explicit entities responsible for it) and therefore |
| this method can be used to remove "stale" entities from conversation STM.</p> |
| </div><div class="cover"><div class="doc"><p>Removes all entities satisfying given predicate from the conversation STM. This is particularly useful when the |
| logic processing the user input makes an implicit assumption not present in the user input itself. Such |
| assumption may alter the conversation (without having an explicit entities responsible for it) and therefore |
| this method can be used to remove "stale" entities from conversation STM.</p> |
| <p>For example, in some cases the intent logic can assume the user current location as an implicit geographical |
| location and therefore all existing geographical-related entities should be removed from the conversation |
| STM to maintain correct context.</p> |
| </div><dl class="attributes"><dt>Value parameters:</dt><dd><dl class="attributes"><dt>filter</dt><dd><p>Entity remove filter.</p> |
| </dd></dl></dd><dt>Source:</dt><dd><a href="https://github.com/apache/incubator-nlpcraft/blob/master/nlpcraft/src/main/scala/org/apache/nlpcraft/NCConversation.scala#L93">NCConversation.scala</a></dd></dl></div></div></div></div></div><div class="documentableElement" id="getData-0"><a link="NCConversation.html#getData-0" class="documentableAnchor"></a><div><span class="annotations monospace"></span></div><div class="header monospace"><div class="signature"><span class="modifiers"></span><span class="kind"><span t="k">def </span></span><a href="NCConversation.html#getData-0" class="documentableName ">getData</a><span>: <a href="NCPropertyMap.html" t="t">NCPropertyMap</a></span></div></div><div class="docs"><span class="modifiers"></span><div><div class="originInfo"></div><div class="memberDocumentation"><div class="documentableBrief doc"><p>Gets user-defined data as a mutable thread-safe property container. Note tha this container has the |
| same expiration policy as the conversation it belongs to. Specifically, the returned container will be |
| cleared when the conversation gets cleared automatically (by timeout or depth) or manually.</p> |
| </div><div class="cover"><div class="doc"><p>Gets user-defined data as a mutable thread-safe property container. Note tha this container has the |
| same expiration policy as the conversation it belongs to. Specifically, the returned container will be |
| cleared when the conversation gets cleared automatically (by timeout or depth) or manually.</p> |
| </div><dl class="attributes"><dt>Returns:</dt><dd><p>User-defined conversation data container. Can be empty but never <code>null</code>.</p> |
| </dd><dt>Source:</dt><dd><a href="https://github.com/apache/incubator-nlpcraft/blob/master/nlpcraft/src/main/scala/org/apache/nlpcraft/NCConversation.scala#L58">NCConversation.scala</a></dd></dl></div></div></div></div></div><div class="documentableElement" id="getDialogFlow-0"><a link="NCConversation.html#getDialogFlow-0" class="documentableAnchor"></a><div><span class="annotations monospace"></span></div><div class="header monospace"><div class="signature"><span class="modifiers"></span><span class="kind"><span t="k">def </span></span><a href="NCConversation.html#getDialogFlow-0" class="documentableName ">getDialogFlow</a><span>: <a href="https://www.scala-lang.org/api/2.13.8/scala/collection/immutable/List.html" t="t">List</a>[<a href="NCDialogFlowItem.html" t="t">NCDialogFlowItem</a>]</span></div></div><div class="docs"><span class="modifiers"></span><div><div class="originInfo"></div><div class="memberDocumentation"><div class="documentableBrief doc"><p>Gets the chronologically ordered list of previously matched intents sorted from oldest to newest |
| for the current user.</p> |
| </div><div class="cover"><div class="doc"><p>Gets the chronologically ordered list of previously matched intents sorted from oldest to newest |
| for the current user.</p> |
| </div><dl class="attributes"><dt>Returns:</dt><dd><p>List of chronologically ordered previously matched dialog flow items.</p> |
| </dd><dt>Source:</dt><dd><a href="https://github.com/apache/incubator-nlpcraft/blob/master/nlpcraft/src/main/scala/org/apache/nlpcraft/NCConversation.scala#L79">NCConversation.scala</a></dd></dl></div></div></div></div></div><div class="documentableElement" id="getStm-0"><a link="NCConversation.html#getStm-0" class="documentableAnchor"></a><div><span class="annotations monospace"></span></div><div class="header monospace"><div class="signature"><span class="modifiers"></span><span class="kind"><span t="k">def </span></span><a href="NCConversation.html#getStm-0" class="documentableName ">getStm</a><span>: <a href="https://www.scala-lang.org/api/2.13.8/scala/collection/immutable/List.html" t="t">List</a>[<a href="NCEntity.html" t="t">NCEntity</a>]</span></div></div><div class="docs"><span class="modifiers"></span><div><div class="originInfo"></div><div class="memberDocumentation"><div class="documentableBrief doc"><p>Gets an ordered list of entities stored in the conversation STM for the current user and data model. |
| Entities in the returned list are ordered by their conversational depth, i.e. the entities from more |
| recent requests appear before entities from older requests.</p> |
| </div><div class="cover"><div class="doc"><p>Gets an ordered list of entities stored in the conversation STM for the current user and data model. |
| Entities in the returned list are ordered by their conversational depth, i.e. the entities from more |
| recent requests appear before entities from older requests.</p> |
| <p>Note that specific rules by which STM operates are undefined for the purpose of this function - caller |
| should not rely on any observed behavior of how STM stores and evicts its content.</p> |
| </div><dl class="attributes"><dt>Returns:</dt><dd><p>List of entities for this conversation's STM. The list can be empty which |
| indicates that conversation is brand new or expired - but never <code>null</code>.</p> |
| </dd><dt>Source:</dt><dd><a href="https://github.com/apache/incubator-nlpcraft/blob/master/nlpcraft/src/main/scala/org/apache/nlpcraft/NCConversation.scala#L71">NCConversation.scala</a></dd></dl></div></div></div></div></div></div></div></div></div></div></div></div></main><footer><div id="generated-by"><span class="footer-text">Generated by</span><a href="https://github.com/lampepfl/dotty/tree/master/scaladoc"><img src="../../../images/scaladoc_logo.svg" alt="scaladoc" class="scaladoc_logo"></img><img src="../../../images/scaladoc_logo_dark.svg" alt="scaladoc" class="scaladoc_logo_dark"></img></a></div><span id="footer-text">Apache NLPCraft</span><div class="socials"><span class="footer-text">Social links</span><a href="https://github.com/apache/incubator-nlpcraft"><span class="social-icon" data-icon-path="github-icon-black.png"></span></a></div><div class="mode"><span class="footer-text">Mode</span><label id="theme-toggle" class="switch"><input type="checkbox"></input><span class="slider"></span></label></div><span class="go-to-top-icon"><a href="#container"><span class="icon-vertical_align_top"></span><span class="footer-text">Back to top</span></a></span></footer></div></div></body></html> |
