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| <td align="left" valign="top"><div class="booktitle">Java Persistence API (JPA) Extensions Reference for EclipseLink, |
| Release 2.4</div></td> |
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| <div class="refsect1"> |
| <h2 class="refsect1"><font face="arial, helvetica, sans-serif" color="#330099">refresh</font></h2> |
| <p>Use <code>eclipselink.refresh</code> to specify whether or not to update the EclipseLink session cache with objects returned by the query.</p> |
| <a id="sthref716" name="sthref716"></a> |
| <p><strong><br /><span class="refsubsect">Values</span></strong></p> |
| <p><a href="#CHDJJBJF">Table 4-36</a> describes this query hint's valid values.</p> |
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| <p><strong><em><font face="arial, helvetica, sans-serif">Table 4-36 Valid Values for eclipselink.refresh</font></em></strong></p> |
| <table class="HRuleFormalWide" title="Valid Values for eclipselink.refresh" summary="Valid Values for this query hint" dir="ltr" border="1" width="100%" frame="hsides" rules="rows" cellpadding="3" cellspacing="0"> |
| <col width="29%" /> |
| <col width="*" /> |
| <thead> |
| <tr align="left" valign="top"> |
| <th align="left" valign="bottom" id="r1c1-t50"><font face="Arial, Helvetica, sans-serif"><strong>Value</strong></font></th> |
| <th align="left" valign="bottom" id="r1c2-t50"><font face="Arial, Helvetica, sans-serif"><strong>Description</strong></font></th> |
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| <p><code>FALSE</code></p> |
| </td> |
| <td align="left" headers="r2c1-t50 r1c2-t50"> |
| <p>Refresh the cache.</p> |
| </td> |
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| <p><code>FALSE</code></p> |
| </td> |
| <td align="left" headers="r3c1-t50 r1c2-t50"> |
| <p>(Default) Do not refresh the cache.</p> |
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| <p><strong><br /><span class="refsubsect">Examples</span></strong></p> |
| <p><a href="#CHDJBCHB">Example 4-73</a> shows how to use this hint in a JPA query.</p> |
| <div class="example"><a id="CHDJBCHB" name="CHDJBCHB"></a><a id="TLJPA682" name="TLJPA682"></a> |
| <p><strong><em><font face="arial, helvetica, sans-serif">Example 4-73 Using refresh in a JPA Query</font></em></strong></p> |
| <pre xml:space="preserve" class="oac_no_warn"> |
| import org.eclipse.persistence.config.HintValues; |
| import org.eclipse.persistence.config.QueryHints; |
| query.setHint(QueryHints.<strong>REFRESH</strong>, HintValues.TRUE); |
| </pre></div> |
| <!-- class="example" --> |
| <p><a href="#CHDJFCJB">Example 4-74</a> shows how to use this hint with the <code>@QueryHint</code> annotation.</p> |
| <div class="example"><a id="CHDJFCJB" name="CHDJFCJB"></a><a id="TLJPA683" name="TLJPA683"></a> |
| <p><strong><em><font face="arial, helvetica, sans-serif">Example 4-74 Using refresh in a @QueryHint Annotation</font></em></strong></p> |
| <pre xml:space="preserve" class="oac_no_warn"> |
| import org.eclipse.persistence.config.HintValues; |
| import org.eclipse.persistence.config.QueryHints; |
| @QueryHint(name=QueryHints.<strong>REFRESH</strong>, value=HintValues.TRUE); |
| </pre></div> |
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| <p><strong><br /><span class="refsubsect">See Also</span></strong></p> |
| <p>For more information, see:</p> |
| <ul> |
| <li> |
| <p><a href="q_refresh_cache.htm#refreshcache">"refresh.cascade"</a></p> |
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