PropertyIsNull

<p>PropertyIsNull</p>
<p>PropertyIsNull</p>

expression

Provides an Interface to Web-Services defined as standards by the Open Geospatial Consortium (OGC), including Web Feature Service
(WFS) for vector data, Web Coverage Service (WCS), Catalogue Service (CSW) for ISO/OGC metadata, Web Processing Service (WPS) for data processes,
and associated standards such as the common web-service specification (OWS) and OGC Filter Encoding. Partial support is provided for the Web Map
Service (WMS). The purpose is to add support for additional OGC service standards such as Web Coverage Processing Service (WCPS), the Sensor
Observation Service (SOS), or even new standard services emerging such OGC API or SensorThings.

Emmanuel Blondel

ows4R

Interface to OGC Web-Services (OWS)

Alexandre Bennici

Norbert Billet

PropertyIsNull function

<p><code><a href="https://r6.r-lib.org/reference/R6Class.html">R6Class</a></code> object.</p>

Format

<p>Emmanuel Blondel &lt;emmanuel.blondel1@gmail.com&gt;</p>

Author

<p><code>ows4R::OGCAbstractObject</code> -&gt; <code>ows4R::OGCExpression</code> -&gt; <code>PropertyIsNull</code></p>

Super classes

<p><div class="r6-fields"></div></p><dl>
<dt><code>PropertyName</code></dt>
<dd><p>property name field for XML encoding</p></dd><p></p><p>
</p></dl><p></p>

Public fields


<div class="section" id="public-methods">
<h3>Public methods</h3><p></p><p><ul>
<li><p><a href="/link/PropertyIsNull%24new()?package=ows4R&version=0.4" data-mini-rdoc="ows4R::PropertyIsNull$new()"><code>PropertyIsNull$new()</code></a></p></li>
<li><p><a href="/link/PropertyIsNull%24clone()?package=ows4R&version=0.4" data-mini-rdoc="ows4R::PropertyIsNull$clone()"><code>PropertyIsNull$clone()</code></a></p></li>
</ul></p><p></p></div><p><details><summary>Inherited methods</summary>
<ul>
<li><span class="pkg-link" data-pkg="ows4R" data-topic="OGCAbstractObject" data-id="ERROR"><a href="/link/ows4R%3A%3AOGCAbstractObject%24ERROR()?package=ows4R&version=0.4" data-mini-rdoc="ows4R::ows4R::OGCAbstractObject$ERROR()"><code>ows4R::OGCAbstractObject$ERROR()</code></a></span></li>
<li><span class="pkg-link" data-pkg="ows4R" data-topic="OGCAbstractObject" data-id="INFO"><a href="/link/ows4R%3A%3AOGCAbstractObject%24INFO()?package=ows4R&version=0.4" data-mini-rdoc="ows4R::ows4R::OGCAbstractObject$INFO()"><code>ows4R::OGCAbstractObject$INFO()</code></a></span></li>
<li><span class="pkg-link" data-pkg="ows4R" data-topic="OGCAbstractObject" data-id="WARN"><a href="/link/ows4R%3A%3AOGCAbstractObject%24WARN()?package=ows4R&version=0.4" data-mini-rdoc="ows4R::ows4R::OGCAbstractObject$WARN()"><code>ows4R::OGCAbstractObject$WARN()</code></a></span></li>
<li><span class="pkg-link" data-pkg="ows4R" data-topic="OGCAbstractObject" data-id="encode"><a href="/link/ows4R%3A%3AOGCAbstractObject%24encode()?package=ows4R&version=0.4" data-mini-rdoc="ows4R::ows4R::OGCAbstractObject$encode()"><code>ows4R::OGCAbstractObject$encode()</code></a></span></li>
<li><span class="pkg-link" data-pkg="ows4R" data-topic="OGCAbstractObject" data-id="getClass"><a href="/link/ows4R%3A%3AOGCAbstractObject%24getClass()?package=ows4R&version=0.4" data-mini-rdoc="ows4R::ows4R::OGCAbstractObject$getClass()"><code>ows4R::OGCAbstractObject$getClass()</code></a></span></li>
<li><span class="pkg-link" data-pkg="ows4R" data-topic="OGCAbstractObject" data-id="getClassName"><a href="/link/ows4R%3A%3AOGCAbstractObject%24getClassName()?package=ows4R&version=0.4" data-mini-rdoc="ows4R::ows4R::OGCAbstractObject$getClassName()"><code>ows4R::OGCAbstractObject$getClassName()</code></a></span></li>
<li><span class="pkg-link" data-pkg="ows4R" data-topic="OGCAbstractObject" data-id="getNamespaceDefinition"><a href="/link/ows4R%3A%3AOGCAbstractObject%24getNamespaceDefinition()?package=ows4R&version=0.4" data-mini-rdoc="ows4R::ows4R::OGCAbstractObject$getNamespaceDefinition()"><code>ows4R::OGCAbstractObject$getNamespaceDefinition()</code></a></span></li>
<li><span class="pkg-link" data-pkg="ows4R" data-topic="OGCAbstractObject" data-id="isFieldInheritedFrom"><a href="/link/ows4R%3A%3AOGCAbstractObject%24isFieldInheritedFrom()?package=ows4R&version=0.4" data-mini-rdoc="ows4R::ows4R::OGCAbstractObject$isFieldInheritedFrom()"><code>ows4R::OGCAbstractObject$isFieldInheritedFrom()</code></a></span></li>
<li><span class="pkg-link" data-pkg="ows4R" data-topic="OGCAbstractObject" data-id="logger"><a href="/link/ows4R%3A%3AOGCAbstractObject%24logger()?package=ows4R&version=0.4" data-mini-rdoc="ows4R::ows4R::OGCAbstractObject$logger()"><code>ows4R::OGCAbstractObject$logger()</code></a></span></li>
<li><span class="pkg-link" data-pkg="ows4R" data-topic="OGCAbstractObject" data-id="print"><a href="/link/ows4R%3A%3AOGCAbstractObject%24print()?package=ows4R&version=0.4" data-mini-rdoc="ows4R::ows4R::OGCAbstractObject$print()"><code>ows4R::OGCAbstractObject$print()</code></a></span></li>
<li><span class="pkg-link" data-pkg="ows4R" data-topic="OGCExpression" data-id="getExprVersion"><a href="/link/ows4R%3A%3AOGCExpression%24getExprVersion()?package=ows4R&version=0.4" data-mini-rdoc="ows4R::ows4R::OGCExpression$getExprVersion()"><code>ows4R::OGCExpression$getExprVersion()</code></a></span></li>
<li><span class="pkg-link" data-pkg="ows4R" data-topic="OGCExpression" data-id="setExprVersion"><a href="/link/ows4R%3A%3AOGCExpression%24setExprVersion()?package=ows4R&version=0.4" data-mini-rdoc="ows4R::ows4R::OGCExpression$setExprVersion()"><code>ows4R::OGCExpression$setExprVersion()</code></a></span></li>
</ul>
</details></p><p><hr>
<a id="method-PropertyIsNull-new"></a></p><div class="section" id="method-new-">
<h3>Method <code>new()</code></h3>
<p>Initializes an object extending PropertyIsLike</p><div class="section" id="usage">
<h4>Usage</h4>
<p><div class="r"></div></p><pre><code>PropertyIsNull$new(PropertyName)</code></pre><p></p></div><p></p>
</div><p></p><p><div class="section" id="arguments">
<h4>Arguments</h4>
<p><div class="arguments"></div></p><dl>
<dt><code>PropertyName</code></dt>
<dd><p>property name</p></dd></dl></div></p><p>
</p><p></p>
<p></p><p></p><p><hr>
<a id="method-PropertyIsNull-clone"></a></p><div class="section" id="method-clone-">
<h3>Method <code>clone()</code></h3>
<p>The objects of this class are cloneable with this method.</p><div class="section" id="usage">
<h4>Usage</h4>
<p><div class="r"></div></p><pre><code>PropertyIsNull$clone(deep = FALSE)</code></pre><p></p></div><p></p>
</div><p></p><p><div class="section" id="arguments">
<h4>Arguments</h4>
<p><div class="arguments"></div></p><dl>
<dt><code>deep</code></dt>
<dd><p>Whether to make a deep clone.</p></dd></dl></div></p><p>
</p><p></p>
<p></p><p>
</p>

Methods

PropertyIsNull — PropertyIsNull

<p><code><a href='https://r6.r-lib.org/reference/R6Class.html'>R6Class</a></code> object.</p>

<p><div class="r6-fields"></p><dl>
<dt><code>PropertyName</code></dt>
<dd><p>property name field for XML encoding</p></dd>


</dl><p></div></p>


<div class='section' id='public-methods'>
<h3>Public methods</h3>

<ul>
<li><p><a href='#method-PropertyIsNull-new'><code>PropertyIsNull$new()</code></a></p></li>
<li><p><a href='#method-PropertyIsNull-clone'><code>PropertyIsNull$clone()</code></a></p></li>
</ul>

</div><p><details><summary>Inherited methods</summary>
<ul>
<li><span class="pkg-link" data-pkg="ows4R" data-topic="OGCAbstractObject" data-id="ERROR"><a href='../../ows4R/html/OGCAbstractObject.html#method-OGCAbstractObject-ERROR'><code>ows4R::OGCAbstractObject$ERROR()</code></a></span></li>
<li><span class="pkg-link" data-pkg="ows4R" data-topic="OGCAbstractObject" data-id="INFO"><a href='../../ows4R/html/OGCAbstractObject.html#method-OGCAbstractObject-INFO'><code>ows4R::OGCAbstractObject$INFO()</code></a></span></li>
<li><span class="pkg-link" data-pkg="ows4R" data-topic="OGCAbstractObject" data-id="WARN"><a href='../../ows4R/html/OGCAbstractObject.html#method-OGCAbstractObject-WARN'><code>ows4R::OGCAbstractObject$WARN()</code></a></span></li>
<li><span class="pkg-link" data-pkg="ows4R" data-topic="OGCAbstractObject" data-id="encode"><a href='../../ows4R/html/OGCAbstractObject.html#method-OGCAbstractObject-encode'><code>ows4R::OGCAbstractObject$encode()</code></a></span></li>
<li><span class="pkg-link" data-pkg="ows4R" data-topic="OGCAbstractObject" data-id="getClass"><a href='../../ows4R/html/OGCAbstractObject.html#method-OGCAbstractObject-getClass'><code>ows4R::OGCAbstractObject$getClass()</code></a></span></li>
<li><span class="pkg-link" data-pkg="ows4R" data-topic="OGCAbstractObject" data-id="getClassName"><a href='../../ows4R/html/OGCAbstractObject.html#method-OGCAbstractObject-getClassName'><code>ows4R::OGCAbstractObject$getClassName()</code></a></span></li>
<li><span class="pkg-link" data-pkg="ows4R" data-topic="OGCAbstractObject" data-id="getNamespaceDefinition"><a href='../../ows4R/html/OGCAbstractObject.html#method-OGCAbstractObject-getNamespaceDefinition'><code>ows4R::OGCAbstractObject$getNamespaceDefinition()</code></a></span></li>
<li><span class="pkg-link" data-pkg="ows4R" data-topic="OGCAbstractObject" data-id="isFieldInheritedFrom"><a href='../../ows4R/html/OGCAbstractObject.html#method-OGCAbstractObject-isFieldInheritedFrom'><code>ows4R::OGCAbstractObject$isFieldInheritedFrom()</code></a></span></li>
<li><span class="pkg-link" data-pkg="ows4R" data-topic="OGCAbstractObject" data-id="logger"><a href='../../ows4R/html/OGCAbstractObject.html#method-OGCAbstractObject-logger'><code>ows4R::OGCAbstractObject$logger()</code></a></span></li>
<li><span class="pkg-link" data-pkg="ows4R" data-topic="OGCAbstractObject" data-id="print"><a href='../../ows4R/html/OGCAbstractObject.html#method-OGCAbstractObject-print'><code>ows4R::OGCAbstractObject$print()</code></a></span></li>
<li><span class="pkg-link" data-pkg="ows4R" data-topic="OGCExpression" data-id="getExprVersion"><a href='../../ows4R/html/OGCExpression.html#method-OGCExpression-getExprVersion'><code>ows4R::OGCExpression$getExprVersion()</code></a></span></li>
<li><span class="pkg-link" data-pkg="ows4R" data-topic="OGCExpression" data-id="setExprVersion"><a href='../../ows4R/html/OGCExpression.html#method-OGCExpression-setExprVersion'><code>ows4R::OGCExpression$setExprVersion()</code></a></span></li>
</ul>
</details>

<hr>
<a id="method-PropertyIsNull-new"></a></p><div class='section' id='method-new-'>
<h3>Method <code>new()</code></h3>
<p>Initializes an object extending PropertyIsLike</p><div class='section' id='usage'>
<h4>Usage</h4>
<p><div class="r"></p><pre><code>PropertyIsNull$new(PropertyName)</code></pre><p></div></p>
</div>

<div class='section' id='arguments'>
<h4>Arguments</h4>
<p><div class="arguments"></p><dl>
<dt><code>PropertyName</code></dt>
<dd><p>property name</p></dd>


</dl><p></div></p>
</div>

</div><p><hr>
<a id="method-PropertyIsNull-clone"></a></p><div class='section' id='method-clone-'>
<h3>Method <code>clone()</code></h3>
<p>The objects of this class are cloneable with this method.</p><div class='section' id='usage'>
<h4>Usage</h4>
<p><div class="r"></p><pre><code>PropertyIsNull$clone(deep = FALSE)</code></pre><p></div></p>
</div>

<div class='section' id='arguments'>
<h4>Arguments</h4>
<p><div class="arguments"></p><dl>
<dt><code>deep</code></dt>
<dd><p>Whether to make a deep clone.</p></dd>


</dl><p></div></p>
</div>

</div>


PropertyIsNull: PropertyIsNull

Description

Arguments

Value

Format

Author

Super classes

Public fields

Methods

Public methods

Method `new()`

Usage

Arguments

Method `clone()`

Usage

Arguments

Examples

Description

Arguments

Value

Format

Author

Super classes

Public fields

Methods

Public methods

Method new()

Usage

Arguments

Method clone()

Usage

Arguments

Examples

Method `new()`

Method `clone()`