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<h2 title="Class TemplateDateFormatFactory" class="title">Class TemplateDateFormatFactory</h2>
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<li>java.lang.Object</li>
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<li><a href="../../freemarker/core/TemplateValueFormatFactory.html" title="class in freemarker.core">freemarker.core.TemplateValueFormatFactory</a></li>
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<li>freemarker.core.TemplateDateFormatFactory</li>
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<dd><a href="../../freemarker/core/AliasTemplateDateFormatFactory.html" title="class in freemarker.core">AliasTemplateDateFormatFactory</a></dd>
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<pre>public abstract class <span class="typeNameLabel">TemplateDateFormatFactory</span>
extends <a href="../../freemarker/core/TemplateValueFormatFactory.html" title="class in freemarker.core">TemplateValueFormatFactory</a></pre>
<div class="block">Factory for a certain kind of date/time/dateTime formatting (<a href="../../freemarker/core/TemplateDateFormat.html" title="class in freemarker.core"><code>TemplateDateFormat</code></a>). Usually a singleton
(one-per-VM or one-per-<a href="../../freemarker/template/Configuration.html" title="class in freemarker.template"><code>Configuration</code></a>), and so must be thread-safe.</div>
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<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>2.3.24</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../freemarker/core/Configurable.html#setCustomDateFormats-java.util.Map-"><code>Configurable.setCustomDateFormats(java.util.Map)</code></a></dd>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../freemarker/core/TemplateDateFormatFactory.html#TemplateDateFormatFactory--">TemplateDateFormatFactory</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>abstract <a href="../../freemarker/core/TemplateDateFormat.html" title="class in freemarker.core">TemplateDateFormat</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../freemarker/core/TemplateDateFormatFactory.html#get-java.lang.String-int-java.util.Locale-java.util.TimeZone-boolean-freemarker.core.Environment-">get</a></span>(java.lang.String&nbsp;params,
int&nbsp;dateType,
java.util.Locale&nbsp;locale,
java.util.TimeZone&nbsp;timeZone,
boolean&nbsp;zonelessInput,
<a href="../../freemarker/core/Environment.html" title="class in freemarker.core">Environment</a>&nbsp;env)</code>
<div class="block">Returns a formatter for the given parameters.</div>
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<h4>TemplateDateFormatFactory</h4>
<pre>public&nbsp;TemplateDateFormatFactory()</pre>
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<h4>get</h4>
<pre>public abstract&nbsp;<a href="../../freemarker/core/TemplateDateFormat.html" title="class in freemarker.core">TemplateDateFormat</a>&nbsp;get(java.lang.String&nbsp;params,
int&nbsp;dateType,
java.util.Locale&nbsp;locale,
java.util.TimeZone&nbsp;timeZone,
boolean&nbsp;zonelessInput,
<a href="../../freemarker/core/Environment.html" title="class in freemarker.core">Environment</a>&nbsp;env)
throws <a href="../../freemarker/core/TemplateValueFormatException.html" title="class in freemarker.core">TemplateValueFormatException</a></pre>
<div class="block">Returns a formatter for the given parameters.
<p>
The returned formatter can be a new instance or a reused (cached) instance. Note that <a href="../../freemarker/core/Environment.html" title="class in freemarker.core"><code>Environment</code></a> itself
caches the returned instances, though that cache is lost with the <a href="../../freemarker/core/Environment.html" title="class in freemarker.core"><code>Environment</code></a> (i.e., when the top-level
template execution ends), also it might flushes lot of entries if the locale or time zone is changed during
template execution. So caching on the factory level is still useful, unless creating the formatters is
sufficiently cheap.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>params</code> - The string that further describes how the format should look. For example, when the
<a href="../../freemarker/core/Configurable.html#getDateFormat--"><code>dateFormat</code></a> is <code>"@fooBar 1, 2"</code>, then it will be
<code>"1, 2"</code> (and <code>"@fooBar"</code> selects the factory). The format of this string is up to the
<a href="../../freemarker/core/TemplateDateFormatFactory.html" title="class in freemarker.core"><code>TemplateDateFormatFactory</code></a> implementation. Not <code>null</code>, often an empty string.</dd>
<dd><code>dateType</code> - <a href="../../freemarker/template/TemplateDateModel.html#DATE"><code>TemplateDateModel.DATE</code></a>, <a href="../../freemarker/template/TemplateDateModel.html#TIME"><code>TemplateDateModel.TIME</code></a>, <a href="../../freemarker/template/TemplateDateModel.html#DATETIME"><code>TemplateDateModel.DATETIME</code></a> or
<a href="../../freemarker/template/TemplateDateModel.html#UNKNOWN"><code>TemplateDateModel.UNKNOWN</code></a>. Supporting <a href="../../freemarker/template/TemplateDateModel.html#UNKNOWN"><code>TemplateDateModel.UNKNOWN</code></a> is not necessary, in
which case the method should throw an <a href="../../freemarker/core/UnknownDateTypeFormattingUnsupportedException.html" title="class in freemarker.core"><code>UnknownDateTypeFormattingUnsupportedException</code></a> exception.</dd>
<dd><code>locale</code> - The locale to format for. Not <code>null</code>. The resulting format should be bound to this locale
forever (i.e. locale changes in the <a href="../../freemarker/core/Environment.html" title="class in freemarker.core"><code>Environment</code></a> must not be followed).</dd>
<dd><code>timeZone</code> - The time zone to format for. Not <code>null</code>. The resulting format must be bound to this time zone
forever (i.e. time zone changes in the <a href="../../freemarker/core/Environment.html" title="class in freemarker.core"><code>Environment</code></a> must not be followed).</dd>
<dd><code>zonelessInput</code> - Indicates that the input Java <code>Date</code> is not from a time zone aware source. When this is
<code>true</code>, the formatters shouldn't override the time zone provided to its constructor (most
formatters don't do that anyway), and it shouldn't show the time zone, if it can hide it (like a
<code>SimpleDateFormat</code> pattern-based formatter may can't do that, as the pattern prescribes what to
show).
<p>
As of FreeMarker 2.3.21, this is <code>true</code> exactly when the date is an SQL "date without time of
the day" (i.e., a <code>java.sql.Date</code>) or an SQL "time of the day" value (i.e., a
<code>java.sql.Time</code>, although this rule can change in future, depending on
configuration settings and such, so you shouldn't rely on this rule, just accept what this parameter
says.</dd>
<dd><code>env</code> - The runtime environment from which the formatting was called. This is mostly meant to be used for
<a href="../../freemarker/core/Environment.html#setCustomState-java.lang.Object-java.lang.Object-"><code>Environment.setCustomState(Object, Object)</code></a>/<a href="../../freemarker/core/Environment.html#getCustomState-java.lang.Object-"><code>Environment.getCustomState(Object)</code></a>.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../freemarker/core/TemplateValueFormatException.html" title="class in freemarker.core">TemplateValueFormatException</a></code> - If any problem occurs while parsing/getting the format. Notable subclasses:
<a href="../../freemarker/core/InvalidFormatParametersException.html" title="class in freemarker.core"><code>InvalidFormatParametersException</code></a> if <code>params</code> is malformed;
<a href="../../freemarker/core/UnknownDateTypeFormattingUnsupportedException.html" title="class in freemarker.core"><code>UnknownDateTypeFormattingUnsupportedException</code></a> if <code>dateType</code> is
<a href="../../freemarker/template/TemplateDateModel.html#UNKNOWN"><code>TemplateDateModel.UNKNOWN</code></a> and that's unsupported by this factory.</dd>
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