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<a href="#pub-methods">Public Member Functions</a> |
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<div class="title">DateIntervalInfo Class Reference</div> </div>
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<p><a class="el" href="classDateIntervalInfo.html" title="DateIntervalInfo is a public class for encapsulating localizable date time interval patterns...">DateIntervalInfo</a> is a public class for encapsulating localizable date time interval patterns.
<a href="classDateIntervalInfo.html#details">More...</a></p>
<p><code>#include <<a class="el" href="dtitvinf_8h_source.html">dtitvinf.h</a>></code></p>
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Inheritance diagram for DateIntervalInfo:</div>
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<div class="center">
<img src="classDateIntervalInfo.png" usemap="#DateIntervalInfo_map" alt=""/>
<map id="DateIntervalInfo_map" name="DateIntervalInfo_map">
<area href="classUObject.html" title="UObject is the common ICU "boilerplate" class. " alt="UObject" shape="rect" coords="0,56,101,80"/>
<area href="classUMemory.html" title="UMemory is the common ICU base class. " alt="UMemory" shape="rect" coords="0,0,101,24"/>
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:ae87f68112765188129147222d9383b78"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classDateIntervalInfo.html#ae87f68112765188129147222d9383b78">DateIntervalInfo</a> (<a class="el" href="utypes_8h.html#a3343c1c8a8377277046774691c98d78c">UErrorCode</a> &status)</td></tr>
<tr class="memdesc:ae87f68112765188129147222d9383b78"><td class="mdescLeft"> </td><td class="mdescRight">Default constructor. <a href="#ae87f68112765188129147222d9383b78">More...</a><br/></td></tr>
<tr class="separator:ae87f68112765188129147222d9383b78"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a10f7a11483222b40d3731869dcee09e7"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classDateIntervalInfo.html#a10f7a11483222b40d3731869dcee09e7">DateIntervalInfo</a> (const <a class="el" href="classLocale.html">Locale</a> &locale, <a class="el" href="utypes_8h.html#a3343c1c8a8377277046774691c98d78c">UErrorCode</a> &status)</td></tr>
<tr class="memdesc:a10f7a11483222b40d3731869dcee09e7"><td class="mdescLeft"> </td><td class="mdescRight">Construct <a class="el" href="classDateIntervalInfo.html" title="DateIntervalInfo is a public class for encapsulating localizable date time interval patterns...">DateIntervalInfo</a> for the given locale,. <a href="#a10f7a11483222b40d3731869dcee09e7">More...</a><br/></td></tr>
<tr class="separator:a10f7a11483222b40d3731869dcee09e7"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aa4f36faeb7c5de30a0fb6ac5a5399e4e"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classDateIntervalInfo.html#aa4f36faeb7c5de30a0fb6ac5a5399e4e">DateIntervalInfo</a> (const <a class="el" href="classDateIntervalInfo.html">DateIntervalInfo</a> &)</td></tr>
<tr class="memdesc:aa4f36faeb7c5de30a0fb6ac5a5399e4e"><td class="mdescLeft"> </td><td class="mdescRight">Copy constructor. <a href="#aa4f36faeb7c5de30a0fb6ac5a5399e4e">More...</a><br/></td></tr>
<tr class="separator:aa4f36faeb7c5de30a0fb6ac5a5399e4e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ad63f6180e37eec9fb09fac3d3cef5a37"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classDateIntervalInfo.html">DateIntervalInfo</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classDateIntervalInfo.html#ad63f6180e37eec9fb09fac3d3cef5a37">operator=</a> (const <a class="el" href="classDateIntervalInfo.html">DateIntervalInfo</a> &)</td></tr>
<tr class="memdesc:ad63f6180e37eec9fb09fac3d3cef5a37"><td class="mdescLeft"> </td><td class="mdescRight">Assignment operator. <a href="#ad63f6180e37eec9fb09fac3d3cef5a37">More...</a><br/></td></tr>
<tr class="separator:ad63f6180e37eec9fb09fac3d3cef5a37"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:addfc7c0a258f9ecd3b265dfca9b4f5ee"><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classDateIntervalInfo.html">DateIntervalInfo</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classDateIntervalInfo.html#addfc7c0a258f9ecd3b265dfca9b4f5ee">clone</a> (<a class="el" href="ucnv_8h.html#aa953bd3cedaedf78b700c837361fe00b">void</a>) const </td></tr>
<tr class="memdesc:addfc7c0a258f9ecd3b265dfca9b4f5ee"><td class="mdescLeft"> </td><td class="mdescRight">Clone this object polymorphically. <a href="#addfc7c0a258f9ecd3b265dfca9b4f5ee">More...</a><br/></td></tr>
<tr class="separator:addfc7c0a258f9ecd3b265dfca9b4f5ee"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a9630b09cae2d2cc7dcf16e9c506e252b"><td class="memItemLeft" align="right" valign="top">virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="classDateIntervalInfo.html#a9630b09cae2d2cc7dcf16e9c506e252b">~DateIntervalInfo</a> ()</td></tr>
<tr class="memdesc:a9630b09cae2d2cc7dcf16e9c506e252b"><td class="mdescLeft"> </td><td class="mdescRight">Destructor. <a href="#a9630b09cae2d2cc7dcf16e9c506e252b">More...</a><br/></td></tr>
<tr class="separator:a9630b09cae2d2cc7dcf16e9c506e252b"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a6e466e574e1de3819b88c3ecb3e95823"><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="umachine_8h.html#a349ef00011f20ccd1d3b424445681aa5">UBool</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classDateIntervalInfo.html#a6e466e574e1de3819b88c3ecb3e95823">operator==</a> (const <a class="el" href="classDateIntervalInfo.html">DateIntervalInfo</a> &other) const </td></tr>
<tr class="memdesc:a6e466e574e1de3819b88c3ecb3e95823"><td class="mdescLeft"> </td><td class="mdescRight">Return true if another object is semantically equal to this one. <a href="#a6e466e574e1de3819b88c3ecb3e95823">More...</a><br/></td></tr>
<tr class="separator:a6e466e574e1de3819b88c3ecb3e95823"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:af94119951ed7cc39ff2f85434d1ce717"><td class="memItemLeft" align="right" valign="top"><a class="el" href="umachine_8h.html#a349ef00011f20ccd1d3b424445681aa5">UBool</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classDateIntervalInfo.html#af94119951ed7cc39ff2f85434d1ce717">operator!=</a> (const <a class="el" href="classDateIntervalInfo.html">DateIntervalInfo</a> &other) const </td></tr>
<tr class="memdesc:af94119951ed7cc39ff2f85434d1ce717"><td class="mdescLeft"> </td><td class="mdescRight">Return true if another object is semantically unequal to this one. <a href="#af94119951ed7cc39ff2f85434d1ce717">More...</a><br/></td></tr>
<tr class="separator:af94119951ed7cc39ff2f85434d1ce717"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a4029a4e61d6a507f6486b5db36c82faa"><td class="memItemLeft" align="right" valign="top"><a class="el" href="ucnv_8h.html#aa953bd3cedaedf78b700c837361fe00b">void</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classDateIntervalInfo.html#a4029a4e61d6a507f6486b5db36c82faa">setIntervalPattern</a> (const <a class="el" href="classUnicodeString.html">UnicodeString</a> &skeleton, <a class="el" href="ucal_8h.html#a02fe23bf33319052733c00c7a09ea912">UCalendarDateFields</a> lrgDiffCalUnit, const <a class="el" href="classUnicodeString.html">UnicodeString</a> &intervalPattern, <a class="el" href="utypes_8h.html#a3343c1c8a8377277046774691c98d78c">UErrorCode</a> &status)</td></tr>
<tr class="memdesc:a4029a4e61d6a507f6486b5db36c82faa"><td class="mdescLeft"> </td><td class="mdescRight">Provides a way for client to build interval patterns. <a href="#a4029a4e61d6a507f6486b5db36c82faa">More...</a><br/></td></tr>
<tr class="separator:a4029a4e61d6a507f6486b5db36c82faa"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a053256243be8d0ae95f1af7976912831"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classUnicodeString.html">UnicodeString</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classDateIntervalInfo.html#a053256243be8d0ae95f1af7976912831">getIntervalPattern</a> (const <a class="el" href="classUnicodeString.html">UnicodeString</a> &skeleton, <a class="el" href="ucal_8h.html#a02fe23bf33319052733c00c7a09ea912">UCalendarDateFields</a> field, <a class="el" href="classUnicodeString.html">UnicodeString</a> &result, <a class="el" href="utypes_8h.html#a3343c1c8a8377277046774691c98d78c">UErrorCode</a> &status) const </td></tr>
<tr class="memdesc:a053256243be8d0ae95f1af7976912831"><td class="mdescLeft"> </td><td class="mdescRight">Get the interval pattern given skeleton and the largest different calendar field. <a href="#a053256243be8d0ae95f1af7976912831">More...</a><br/></td></tr>
<tr class="separator:a053256243be8d0ae95f1af7976912831"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a5acf0d6cb618d16c8db47b9abb5e81e4"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classUnicodeString.html">UnicodeString</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classDateIntervalInfo.html#a5acf0d6cb618d16c8db47b9abb5e81e4">getFallbackIntervalPattern</a> (<a class="el" href="classUnicodeString.html">UnicodeString</a> &result) const </td></tr>
<tr class="memdesc:a5acf0d6cb618d16c8db47b9abb5e81e4"><td class="mdescLeft"> </td><td class="mdescRight">Get the fallback interval pattern. <a href="#a5acf0d6cb618d16c8db47b9abb5e81e4">More...</a><br/></td></tr>
<tr class="separator:a5acf0d6cb618d16c8db47b9abb5e81e4"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a9c185c5f2ce2cbdde470656ebeb78963"><td class="memItemLeft" align="right" valign="top"><a class="el" href="ucnv_8h.html#aa953bd3cedaedf78b700c837361fe00b">void</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classDateIntervalInfo.html#a9c185c5f2ce2cbdde470656ebeb78963">setFallbackIntervalPattern</a> (const <a class="el" href="classUnicodeString.html">UnicodeString</a> &fallbackPattern, <a class="el" href="utypes_8h.html#a3343c1c8a8377277046774691c98d78c">UErrorCode</a> &status)</td></tr>
<tr class="memdesc:a9c185c5f2ce2cbdde470656ebeb78963"><td class="mdescLeft"> </td><td class="mdescRight">Re-set the fallback interval pattern. <a href="#a9c185c5f2ce2cbdde470656ebeb78963">More...</a><br/></td></tr>
<tr class="separator:a9c185c5f2ce2cbdde470656ebeb78963"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a659cb97a28e04827678ae318dc541730"><td class="memItemLeft" align="right" valign="top"><a class="el" href="umachine_8h.html#a349ef00011f20ccd1d3b424445681aa5">UBool</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classDateIntervalInfo.html#a659cb97a28e04827678ae318dc541730">getDefaultOrder</a> () const </td></tr>
<tr class="memdesc:a659cb97a28e04827678ae318dc541730"><td class="mdescLeft"> </td><td class="mdescRight">Get default order – whether the first date in pattern is later date or not. <a href="#a659cb97a28e04827678ae318dc541730">More...</a><br/></td></tr>
<tr class="separator:a659cb97a28e04827678ae318dc541730"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a5eb7f85cbba5dca2294730ba0e949383"><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="utypes_8h.html#a22af10545208a455a6e884008df48e9f">UClassID</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classDateIntervalInfo.html#a5eb7f85cbba5dca2294730ba0e949383">getDynamicClassID</a> () const </td></tr>
<tr class="memdesc:a5eb7f85cbba5dca2294730ba0e949383"><td class="mdescLeft"> </td><td class="mdescRight">ICU "poor man's RTTI", returns a UClassID for the actual class. <a href="#a5eb7f85cbba5dca2294730ba0e949383">More...</a><br/></td></tr>
<tr class="separator:a5eb7f85cbba5dca2294730ba0e949383"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="inherit_header pub_methods_classUObject"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_classUObject')"><img src="closed.png" alt="-"/> Public Member Functions inherited from <a class="el" href="classUObject.html">UObject</a></td></tr>
<tr class="memitem:ace22cf29a90641ef43350deae5bedb85 inherit pub_methods_classUObject"><td class="memItemLeft" align="right" valign="top">virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="classUObject.html#ace22cf29a90641ef43350deae5bedb85">~UObject</a> ()</td></tr>
<tr class="memdesc:ace22cf29a90641ef43350deae5bedb85 inherit pub_methods_classUObject"><td class="mdescLeft"> </td><td class="mdescRight">Destructor. <a href="#ace22cf29a90641ef43350deae5bedb85">More...</a><br/></td></tr>
<tr class="separator:ace22cf29a90641ef43350deae5bedb85 inherit pub_methods_classUObject"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-static-methods"></a>
Static Public Member Functions</h2></td></tr>
<tr class="memitem:aec3f28eb4e1ebf686ea77a60a6749034"><td class="memItemLeft" align="right" valign="top">static <a class="el" href="utypes_8h.html#a22af10545208a455a6e884008df48e9f">UClassID</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classDateIntervalInfo.html#aec3f28eb4e1ebf686ea77a60a6749034">getStaticClassID</a> ()</td></tr>
<tr class="memdesc:aec3f28eb4e1ebf686ea77a60a6749034"><td class="mdescLeft"> </td><td class="mdescRight">ICU "poor man's RTTI", returns a UClassID for this class. <a href="#aec3f28eb4e1ebf686ea77a60a6749034">More...</a><br/></td></tr>
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<tr class="inherit_header pub_static_methods_classUMemory"><td colspan="2" onclick="javascript:toggleInherit('pub_static_methods_classUMemory')"><img src="closed.png" alt="-"/> Static Public Member Functions inherited from <a class="el" href="classUMemory.html">UMemory</a></td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="friends"></a>
Friends</h2></td></tr>
<tr class="memitem:a9acb9821e8fddc1337e8f91705b002e2"><td class="memItemLeft" align="right" valign="top">class </td><td class="memItemRight" valign="bottom"><a class="el" href="classDateIntervalInfo.html#a9acb9821e8fddc1337e8f91705b002e2">DateIntervalFormat</a></td></tr>
<tr class="memdesc:a9acb9821e8fddc1337e8f91705b002e2"><td class="mdescLeft"> </td><td class="mdescRight"><a class="el" href="classDateIntervalFormat.html" title="DateIntervalFormat is a class for formatting and parsing date intervals in a language-independent man...">DateIntervalFormat</a> will need access to getBestSkeleton(), parseSkeleton(), enum IntervalPatternIndex, and calendarFieldToPatternIndex(). <a href="#a9acb9821e8fddc1337e8f91705b002e2">More...</a><br/></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p><a class="el" href="classDateIntervalInfo.html" title="DateIntervalInfo is a public class for encapsulating localizable date time interval patterns...">DateIntervalInfo</a> is a public class for encapsulating localizable date time interval patterns. </p>
<p>It is used by <a class="el" href="classDateIntervalFormat.html" title="DateIntervalFormat is a class for formatting and parsing date intervals in a language-independent man...">DateIntervalFormat</a>.</p>
<p>For most users, ordinary use of <a class="el" href="classDateIntervalFormat.html" title="DateIntervalFormat is a class for formatting and parsing date intervals in a language-independent man...">DateIntervalFormat</a> does not need to create <a class="el" href="classDateIntervalInfo.html" title="DateIntervalInfo is a public class for encapsulating localizable date time interval patterns...">DateIntervalInfo</a> object directly. <a class="el" href="classDateIntervalFormat.html" title="DateIntervalFormat is a class for formatting and parsing date intervals in a language-independent man...">DateIntervalFormat</a> will take care of it when creating a date interval formatter when user pass in skeleton and locale.</p>
<p>For power users, who want to create their own date interval patterns, or want to re-set date interval patterns, they could do so by directly creating <a class="el" href="classDateIntervalInfo.html" title="DateIntervalInfo is a public class for encapsulating localizable date time interval patterns...">DateIntervalInfo</a> and manupulating it.</p>
<p>Logically, the interval patterns are mappings from (skeleton, the_largest_different_calendar_field) to (date_interval_pattern).</p>
<p>A skeleton </p>
<ol>
<li>
only keeps the field pattern letter and ignores all other parts in a pattern, such as space, punctuations, and string literals. </li>
<li>
hides the order of fields. </li>
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<p class="startli">might hide a field's pattern letter length.</p>
<p>For those non-digit calendar fields, the pattern letter length is important, such as MMM, MMMM, and MMMMM; EEE and EEEE, and the field's pattern letter length is honored.</p>
<p class="endli">For the digit calendar fields, such as M or MM, d or dd, yy or yyyy, the field pattern length is ignored and the best match, which is defined in date time patterns, will be returned without honor the field pattern letter length in skeleton. </p>
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<p>The calendar fields we support for interval formatting are: year, month, date, day-of-week, am-pm, hour, hour-of-day, and minute. Those calendar fields can be defined in the following order: year > month > date > am-pm > hour > minute</p>
<p>The largest different calendar fields between 2 calendars is the first different calendar field in above order.</p>
<p>For example: the largest different calendar fields between "Jan 10, 2007" and "Feb 20, 2008" is year.</p>
<p>There is a set of pre-defined static skeleton strings. There are pre-defined interval patterns for those pre-defined skeletons in locales' resource files. For example, for a skeleton UDAT_YEAR_ABBR_MONTH_DAY, which is "yMMMd", in en_US, if the largest different calendar field between date1 and date2 is "year", the date interval pattern is "MMM d, yyyy - MMM d, yyyy", such as "Jan 10, 2007 - Jan 10, 2008". If the largest different calendar field between date1 and date2 is "month", the date interval pattern is "MMM d - MMM d, yyyy", such as "Jan 10 - Feb 10, 2007". If the largest different calendar field between date1 and date2 is "day", the date interval pattern is ""MMM d-d, yyyy", such as "Jan 10-20, 2007".</p>
<p>For date skeleton, the interval patterns when year, or month, or date is different are defined in resource files. For time skeleton, the interval patterns when am/pm, or hour, or minute is different are defined in resource files.</p>
<p>There are 2 dates in interval pattern. For most locales, the first date in an interval pattern is the earlier date. There might be a locale in which the first date in an interval pattern is the later date. We use fallback format for the default order for the locale. For example, if the fallback format is "{0} - {1}", it means the first date in the interval pattern for this locale is earlier date. If the fallback format is "{1} - {0}", it means the first date is the later date. For a particular interval pattern, the default order can be overriden by prefixing "latestFirst:" or "earliestFirst:" to the interval pattern. For example, if the fallback format is "{0}-{1}", but for skeleton "yMMMd", the interval pattern when day is different is "latestFirst:d-d MMM yy", it means by default, the first date in interval pattern is the earlier date. But for skeleton "yMMMd", when day is different, the first date in "d-d MMM yy" is the later date.</p>
<p>The recommended way to create a <a class="el" href="classDateIntervalFormat.html" title="DateIntervalFormat is a class for formatting and parsing date intervals in a language-independent man...">DateIntervalFormat</a> object is to pass in the locale. By using a <a class="el" href="classLocale.html" title="A Locale object represents a specific geographical, political, or cultural region. ">Locale</a> parameter, the <a class="el" href="classDateIntervalFormat.html" title="DateIntervalFormat is a class for formatting and parsing date intervals in a language-independent man...">DateIntervalFormat</a> object is initialized with the pre-defined interval patterns for a given or default locale. </p>
<p>Users can also create <a class="el" href="classDateIntervalFormat.html" title="DateIntervalFormat is a class for formatting and parsing date intervals in a language-independent man...">DateIntervalFormat</a> object by supplying their own interval patterns. It provides flexibility for power users.</p>
<p>After a <a class="el" href="classDateIntervalInfo.html" title="DateIntervalInfo is a public class for encapsulating localizable date time interval patterns...">DateIntervalInfo</a> object is created, clients may modify the interval patterns using setIntervalPattern function as so desired. Currently, users can only set interval patterns when the following calendar fields are different: ERA, YEAR, MONTH, DATE, DAY_OF_MONTH, DAY_OF_WEEK, AM_PM, HOUR, HOUR_OF_DAY, and MINUTE. Interval patterns when other calendar fields are different is not supported. </p>
<p><a class="el" href="classDateIntervalInfo.html" title="DateIntervalInfo is a public class for encapsulating localizable date time interval patterns...">DateIntervalInfo</a> objects are cloneable. When clients obtain a <a class="el" href="classDateIntervalInfo.html" title="DateIntervalInfo is a public class for encapsulating localizable date time interval patterns...">DateIntervalInfo</a> object, they can feel free to modify it as necessary. </p>
<p><a class="el" href="classDateIntervalInfo.html" title="DateIntervalInfo is a public class for encapsulating localizable date time interval patterns...">DateIntervalInfo</a> are not expected to be subclassed. Data for a calendar is loaded out of resource bundles. To ICU 4.0, date interval patterns are only supported in Gregorian calendar. </p>
<dl class="draft"><dt><b><a class="el" href="draft.html#_draft000060">Draft:</a></b></dt><dd>This API may be changed in the future versions and was introduced in ICU 4.0 </dd></dl>
<p>Definition at line <a class="el" href="dtitvinf_8h_source.html#l00168">168</a> of file <a class="el" href="dtitvinf_8h_source.html">dtitvinf.h</a>.</p>
</div><h2 class="groupheader">Constructor & Destructor Documentation</h2>
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<p>Default constructor. </p>
<p>It does not initialize any interval patterns except that it initialize default fall-back pattern as "{0} - {1}", which can be reset by <a class="el" href="classDateIntervalInfo.html#a9c185c5f2ce2cbdde470656ebeb78963" title="Re-set the fallback interval pattern. ">setFallbackIntervalPattern()</a>. It should be followed by <a class="el" href="classDateIntervalInfo.html#a9c185c5f2ce2cbdde470656ebeb78963" title="Re-set the fallback interval pattern. ">setFallbackIntervalPattern()</a> and <a class="el" href="classDateIntervalInfo.html#a4029a4e61d6a507f6486b5db36c82faa" title="Provides a way for client to build interval patterns. ">setIntervalPattern()</a>, and is recommended to be used only for power users who wants to create their own interval patterns and use them to create date interval formatter. </p>
<dl class="params"><dt>Parameters</dt><dd>
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<dl class="internal"><dt><b><a class="el" href="internal.html#_internal000213">Internal:</a></b></dt><dd>Do not use. This API is for internal use only. ICU 4.0 </dd></dl>
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<p>Construct <a class="el" href="classDateIntervalInfo.html" title="DateIntervalInfo is a public class for encapsulating localizable date time interval patterns...">DateIntervalInfo</a> for the given locale,. </p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">locale</td><td>the interval patterns are loaded from the Gregorian calendar data in this locale. </td></tr>
<tr><td class="paramname">status</td><td>output param set to success/failure code on exit </td></tr>
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<dl class="draft"><dt><b><a class="el" href="draft.html#_draft000061">Draft:</a></b></dt><dd>This API may be changed in the future versions and was introduced in ICU 4.0 </dd></dl>
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<td class="memname">DateIntervalInfo::DateIntervalInfo </td>
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<p>Copy constructor. </p>
<dl class="draft"><dt><b><a class="el" href="draft.html#_draft000062">Draft:</a></b></dt><dd>This API may be changed in the future versions and was introduced in ICU 4.0 </dd></dl>
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<p>Destructor. </p>
<p>It is virtual to be safe, but it is not designed to be subclassed. </p>
<dl class="draft"><dt><b><a class="el" href="draft.html#_draft000065">Draft:</a></b></dt><dd>This API may be changed in the future versions and was introduced in ICU 4.0 </dd></dl>
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<h2 class="groupheader">Member Function Documentation</h2>
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<td class="memname">virtual <a class="el" href="classDateIntervalInfo.html">DateIntervalInfo</a>* DateIntervalInfo::clone </td>
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<p>Clone this object polymorphically. </p>
<p>The caller owns the result and should delete it when done. </p>
<dl class="section return"><dt>Returns</dt><dd>a copy of the object </dd></dl>
<dl class="draft"><dt><b><a class="el" href="draft.html#_draft000064">Draft:</a></b></dt><dd>This API may be changed in the future versions and was introduced in ICU 4.0 </dd></dl>
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<td class="memname"><a class="el" href="umachine_8h.html#a349ef00011f20ccd1d3b424445681aa5">UBool</a> DateIntervalInfo::getDefaultOrder </td>
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<p>Get default order – whether the first date in pattern is later date or not. </p>
<p>return default date ordering in interval pattern. TRUE if the first date in pattern is later date, FALSE otherwise. </p>
<dl class="draft"><dt><b><a class="el" href="draft.html#_draft000070">Draft:</a></b></dt><dd>This API may be changed in the future versions and was introduced in ICU 4.0 </dd></dl>
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<td class="memname">virtual <a class="el" href="utypes_8h.html#a22af10545208a455a6e884008df48e9f">UClassID</a> DateIntervalInfo::getDynamicClassID </td>
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<p>ICU "poor man's RTTI", returns a UClassID for the actual class. </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable002396">Stable:</a></b></dt><dd>ICU 4.0 </dd></dl>
<p>Implements <a class="el" href="classUObject.html#a9b1acc95efd89cb86ec31f2dc947a262">UObject</a>.</p>
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<td class="memname"><a class="el" href="classUnicodeString.html">UnicodeString</a>& DateIntervalInfo::getFallbackIntervalPattern </td>
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<p>Get the fallback interval pattern. </p>
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<dl class="section return"><dt>Returns</dt><dd>a reference to 'result' </dd></dl>
<dl class="draft"><dt><b><a class="el" href="draft.html#_draft000068">Draft:</a></b></dt><dd>This API may be changed in the future versions and was introduced in ICU 4.0 </dd></dl>
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<td class="memname"><a class="el" href="classUnicodeString.html">UnicodeString</a>& DateIntervalInfo::getIntervalPattern </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classUnicodeString.html">UnicodeString</a> & </td>
<td class="paramname"><em>skeleton</em>, </td>
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<td class="paramtype"><a class="el" href="ucal_8h.html#a02fe23bf33319052733c00c7a09ea912">UCalendarDateFields</a> </td>
<td class="paramname"><em>field</em>, </td>
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<td class="paramtype"><a class="el" href="utypes_8h.html#a3343c1c8a8377277046774691c98d78c">UErrorCode</a> & </td>
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<p>Get the interval pattern given skeleton and the largest different calendar field. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">skeleton</td><td>the skeleton </td></tr>
<tr><td class="paramname">field</td><td>the largest different calendar field </td></tr>
<tr><td class="paramname">result</td><td>output param to receive the pattern </td></tr>
<tr><td class="paramname">status</td><td>output param set to success/failure code on exit </td></tr>
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</dd>
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<dl class="section return"><dt>Returns</dt><dd>a reference to 'result' </dd></dl>
<dl class="draft"><dt><b><a class="el" href="draft.html#_draft000067">Draft:</a></b></dt><dd>This API may be changed in the future versions and was introduced in ICU 4.0 </dd></dl>
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<td class="memname">static <a class="el" href="utypes_8h.html#a22af10545208a455a6e884008df48e9f">UClassID</a> DateIntervalInfo::getStaticClassID </td>
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<p>ICU "poor man's RTTI", returns a UClassID for this class. </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable002397">Stable:</a></b></dt><dd>ICU 4.0 </dd></dl>
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<td class="memname"><a class="el" href="umachine_8h.html#a349ef00011f20ccd1d3b424445681aa5">UBool</a> DateIntervalInfo::operator!= </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classDateIntervalInfo.html">DateIntervalInfo</a> & </td>
<td class="paramname"><em>other</em></td><td>)</td>
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<p>Return true if another object is semantically unequal to this one. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">other</td><td>the <a class="el" href="classDateIntervalInfo.html" title="DateIntervalInfo is a public class for encapsulating localizable date time interval patterns...">DateIntervalInfo</a> object to be compared with. </td></tr>
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</dd>
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<dl class="section return"><dt>Returns</dt><dd>true if other is semantically unequal to this. </dd></dl>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable002395">Stable:</a></b></dt><dd>ICU 4.0 </dd></dl>
<p>Definition at line <a class="el" href="dtitvinf_8h_source.html#l00518">518</a> of file <a class="el" href="dtitvinf_8h_source.html">dtitvinf.h</a>.</p>
<p>References <a class="el" href="classDateIntervalInfo.html#a6e466e574e1de3819b88c3ecb3e95823">operator==()</a>.</p>
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<td class="memname"><a class="el" href="classDateIntervalInfo.html">DateIntervalInfo</a>& DateIntervalInfo::operator= </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classDateIntervalInfo.html">DateIntervalInfo</a> & </td>
<td class="paramname"></td><td>)</td>
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<p>Assignment operator. </p>
<dl class="draft"><dt><b><a class="el" href="draft.html#_draft000063">Draft:</a></b></dt><dd>This API may be changed in the future versions and was introduced in ICU 4.0 </dd></dl>
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<td class="memname">virtual <a class="el" href="umachine_8h.html#a349ef00011f20ccd1d3b424445681aa5">UBool</a> DateIntervalInfo::operator== </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classDateIntervalInfo.html">DateIntervalInfo</a> & </td>
<td class="paramname"><em>other</em></td><td>)</td>
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<p>Return true if another object is semantically equal to this one. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">other</td><td>the <a class="el" href="classDateIntervalInfo.html" title="DateIntervalInfo is a public class for encapsulating localizable date time interval patterns...">DateIntervalInfo</a> object to be compared with. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>true if other is semantically equal to this. </dd></dl>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable002394">Stable:</a></b></dt><dd>ICU 4.0 </dd></dl>
<p>Referenced by <a class="el" href="dtitvinf_8h_source.html#l00518">operator!=()</a>.</p>
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<td class="memname"><a class="el" href="ucnv_8h.html#aa953bd3cedaedf78b700c837361fe00b">void</a> DateIntervalInfo::setFallbackIntervalPattern </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classUnicodeString.html">UnicodeString</a> & </td>
<td class="paramname"><em>fallbackPattern</em>, </td>
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<p>Re-set the fallback interval pattern. </p>
<p>In construction, default fallback pattern is set as "{0} - {1}". And constructor taking locale as parameter will set the fallback pattern as what defined in the locale resource file.</p>
<p>This method provides a way for user to replace the fallback pattern.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">fallbackPattern</td><td>fall-back interval pattern. </td></tr>
<tr><td class="paramname">status</td><td>output param set to success/failure code on exit </td></tr>
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</dd>
</dl>
<dl class="draft"><dt><b><a class="el" href="draft.html#_draft000069">Draft:</a></b></dt><dd>This API may be changed in the future versions and was introduced in ICU 4.0 </dd></dl>
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<td class="memname"><a class="el" href="ucnv_8h.html#aa953bd3cedaedf78b700c837361fe00b">void</a> DateIntervalInfo::setIntervalPattern </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classUnicodeString.html">UnicodeString</a> & </td>
<td class="paramname"><em>skeleton</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="ucal_8h.html#a02fe23bf33319052733c00c7a09ea912">UCalendarDateFields</a> </td>
<td class="paramname"><em>lrgDiffCalUnit</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="classUnicodeString.html">UnicodeString</a> & </td>
<td class="paramname"><em>intervalPattern</em>, </td>
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<td class="paramtype"><a class="el" href="utypes_8h.html#a3343c1c8a8377277046774691c98d78c">UErrorCode</a> & </td>
<td class="paramname"><em>status</em> </td>
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<p>Provides a way for client to build interval patterns. </p>
<p>User could construct <a class="el" href="classDateIntervalInfo.html" title="DateIntervalInfo is a public class for encapsulating localizable date time interval patterns...">DateIntervalInfo</a> by providing a list of skeletons and their patterns. </p>
<p>For example: </p>
<pre>
UErrorCode status = U_ZERO_ERROR;
<a class="el" href="classDateIntervalInfo.html" title="DateIntervalInfo is a public class for encapsulating localizable date time interval patterns...">DateIntervalInfo</a> dIntervalInfo = new <a class="el" href="classDateIntervalInfo.html#ae87f68112765188129147222d9383b78" title="Default constructor. ">DateIntervalInfo()</a>;
dIntervalInfo->setFallbackIntervalPattern("{0} ~ {1}");
dIntervalInfo->setIntervalPattern("yMd", UCAL_YEAR, "'from' yyyy-M-d 'to' yyyy-M-d", status);
dIntervalInfo->setIntervalPattern("yMMMd", UCAL_MONTH, "'from' yyyy MMM d 'to' MMM d", status);
dIntervalInfo->setIntervalPattern("yMMMd", UCAL_DAY, "yyyy MMM d-d", status, status);
</pre><p>Restriction: Currently, users can only set interval patterns when the following calendar fields are different: ERA, YEAR, MONTH, DATE, DAY_OF_MONTH, DAY_OF_WEEK, AM_PM, HOUR, HOUR_OF_DAY, and MINUTE. Interval patterns when other calendar fields are different are not supported.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">skeleton</td><td>the skeleton on which interval pattern based </td></tr>
<tr><td class="paramname">lrgDiffCalUnit</td><td>the largest different calendar unit. </td></tr>
<tr><td class="paramname">intervalPattern</td><td>the interval pattern on the largest different calendar unit. For example, if lrgDiffCalUnit is "year", the interval pattern for en_US when year is different could be "'from' yyyy 'to' yyyy". </td></tr>
<tr><td class="paramname">status</td><td>output param set to success/failure code on exit </td></tr>
</table>
</dd>
</dl>
<dl class="draft"><dt><b><a class="el" href="draft.html#_draft000066">Draft:</a></b></dt><dd>This API may be changed in the future versions and was introduced in ICU 4.0 </dd></dl>
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<h2 class="groupheader">Friends And Related Function Documentation</h2>
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<td class="memname">friend class <a class="el" href="classDateIntervalFormat.html">DateIntervalFormat</a></td>
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<span class="mlabels"><span class="mlabel">friend</span></span> </td>
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<p><a class="el" href="classDateIntervalFormat.html" title="DateIntervalFormat is a class for formatting and parsing date intervals in a language-independent man...">DateIntervalFormat</a> will need access to getBestSkeleton(), parseSkeleton(), enum IntervalPatternIndex, and calendarFieldToPatternIndex(). </p>
<p>Instead of making above public, make <a class="el" href="classDateIntervalFormat.html" title="DateIntervalFormat is a class for formatting and parsing date intervals in a language-independent man...">DateIntervalFormat</a> a friend of <a class="el" href="classDateIntervalInfo.html" title="DateIntervalInfo is a public class for encapsulating localizable date time interval patterns...">DateIntervalInfo</a>. </p>
<p>Definition at line <a class="el" href="dtitvinf_8h_source.html#l00355">355</a> of file <a class="el" href="dtitvinf_8h_source.html">dtitvinf.h</a>.</p>
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<td class="memname"><a class="el" href="umachine_8h.html#a349ef00011f20ccd1d3b424445681aa5">UBool</a> <a class="el" href="utypes_8h.html#a1fae478cb5a46c7e4a0673d267626696">U_CALLCONV</a> hashTableValueComparator </td>
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<dl class="internal"><dt><b><a class="el" href="internal.html#_internal000212">Internal:</a></b></dt><dd>Do not use. This API is for internal use only. ICU 4.0 </dd></dl>
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<hr/>The documentation for this class was generated from the following file:<ul>
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