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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <description>This file is an XML representation of an issue</description>
    <language>en-us</language>    <build-info>
        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[JAVA-1091] Always set awaitData along with tailable </title>
                <link>https://jira.mongodb.org/browse/JAVA-1091</link>
                <project id="10006" key="JAVA">Java Driver</project>
                    <description>&lt;p&gt;DBCursor#addOption allows a user to set the option Bytes.QUERYOPTION_TAILABLE.  There are no circumstances where a user would not want to also set Bytes.QUERYOPTION_AWAITDATA, so if the former is set, the latter will now also be set.&lt;/p&gt;

&lt;p&gt;As part of this change, there will be a behavioral change to DBCursor#hasNext().  It used to be that if tailable was set but not awaitData, hasNext() could return false on one invocation, followed by true on the next.  This really violates the contract of Iterator, so the driver will no longer allow it.  DBCursor#hasNext will now block until either a new document is available or the cursor is no longer valid.&lt;/p&gt;</description>
                <environment></environment>
        <key id="107338">JAVA-1091</key>
            <summary>Always set awaitData along with tailable </summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="6" iconUrl="https://jira.mongodb.org/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="9">Done</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="jeff.yemin@mongodb.com">Jeffrey Yemin</reporter>
                        <labels>
                    </labels>
                <created>Thu, 23 Jan 2014 17:05:30 +0000</created>
                <updated>Fri, 25 Aug 2017 02:53:33 +0000</updated>
                            <resolved>Fri, 31 Jan 2014 01:35:40 +0000</resolved>
                                                    <fixVersion>2.12.0</fixVersion>
                    <fixVersion>3.0.0</fixVersion>
                                    <component>Query Operations</component>
                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="491309" author="xgen-internal-githook" created="Fri, 31 Jan 2014 01:35:27 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;jyemin&apos;, u&apos;name&apos;: u&apos;Jeff Yemin&apos;, u&apos;email&apos;: u&apos;jeff.yemin@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/JAVA-1091&quot; title=&quot;Always set awaitData along with tailable &quot; class=&quot;issue-link&quot; data-issue-key=&quot;JAVA-1091&quot;&gt;&lt;del&gt;JAVA-1091&lt;/del&gt;&lt;/a&gt;: Always set awaitData if tailable is set, and ensure that hasNext() blocks until either there is another available document or the cursor is no longer valid&lt;br/&gt;
Branch: 3.0.x&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo-java-driver/commit/44c5661c454eeef6423f5d3092c464f83746b4e3&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo-java-driver/commit/44c5661c454eeef6423f5d3092c464f83746b4e3&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="490983" author="xgen-internal-githook" created="Thu, 30 Jan 2014 18:57:08 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;jyemin&apos;, u&apos;name&apos;: u&apos;Jeff Yemin&apos;, u&apos;email&apos;: u&apos;jeff.yemin@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/JAVA-1091&quot; title=&quot;Always set awaitData along with tailable &quot; class=&quot;issue-link&quot; data-issue-key=&quot;JAVA-1091&quot;&gt;&lt;del&gt;JAVA-1091&lt;/del&gt;&lt;/a&gt;: Always set awaitData if tailable is set, and ensure that hasNext() blocks until either there is another available document or the cursor is no longer valid.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo-java-driver/commit/88b464093a1acda85b6b74703df8f58d9f7c40da&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo-java-driver/commit/88b464093a1acda85b6b74703df8f58d9f7c40da&lt;/a&gt;&lt;/p&gt;</comment>
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                    <name>Related</name>
                                            <outwardlinks description="related to">
                                        <issuelink>
            <issuekey id="137720">JAVA-1255</issuekey>
        </issuelink>
                            </outwardlinks>
                                                                <inwardlinks description="is related to">
                                        <issuelink>
            <issuekey id="44626">JAVA-605</issuekey>
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