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<td class="page-title-pattern-first-line " style="padding: 0px; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; padding-top: 10px"> <a href="https://hibernate.atlassian.net/browse/HSEARCH" style="color: #3b73af; text-decoration: none">Hibernate Search</a> / <a href="https://hibernate.atlassian.net/browse/HSEARCH-1917" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-static-bug-c16eed7a-9de0-455a-942c-5354e2644b6e" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom" /></a> <a href="https://hibernate.atlassian.net/browse/HSEARCH-1917" style="color: #3b73af; text-decoration: none">HSEARCH-1917</a>
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<td style="vertical-align: top;; padding: 0px; border-collapse: collapse; padding-right: 5px; font-size: 20px; line-height: 30px; mso-line-height-rule: exactly" class="page-title-pattern-header-container"> <span class="page-title-pattern-header" style="font-family: Arial, sans-serif; padding: 0; font-size: 20px; line-height: 30px; mso-text-raise: 2px; mso-line-height-rule: exactly; vertical-align: middle"> <a href="https://hibernate.atlassian.net/browse/HSEARCH-1917" style="color: #3b73af; text-decoration: none">Cannot index null or empty values for faceted fields</a> </span>
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Change By:
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<td style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <a class="user-hover" rel="hardy.ferentschik" id="email_hardy.ferentschik" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=hardy.ferentschik" style="color:#6c797f;; color: #3b73af; text-decoration: none">Hardy Ferentschik</a>
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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0px; border-collapse: collapse; padding: 0 0 10px 0"> <span class="diffcontext">It seems that it is impossible to have database-stored null or empty strings for domain properties annotated with</span> <span class="diffaddedchars" style="background-color:#ddfade;"> {{</span> <span class="diffcontext"> @Facet</span> <span class="diffaddedchars" style="background-color:#ddfade;">}}</span> <span class="diffcontext">.<br /><br />I tried the configuration below:<br />{</span> <span class="diffremovedchars" style="background-color: #ffe7e7; text-decoration:line-through;">{</span> <span class="diffaddedchars" style="background-color:#ddfade;">code}</span> <span class="diffcontext"><br />@Entity<br />@Indexed<br />@Table(name = "issuer")<br />public class IndexedObject implements Serializable {<br /><br /> @Column<br /> @Fields({ @Field, @Field(name = "city_na", analyze = Analyze.NO, indexNullAs = "_null_") })<br /> @Facet(forField = "city_na")<br /> private String city;<br /><br />}<br /></span> <span class="diffaddedchars" style="background-color:#ddfade;">{code</span> <span class="diffcontext">}</span> <span class="diffremovedchars" style="background-color: #ffe7e7; text-decoration:line-through;">}</span> <span class="diffcontext"><br /><br />a call to persist on a newly created</span> <span class="diffaddedchars" style="background-color:#ddfade;"> {{</span> <span class="diffcontext"> IndexedObject()</span> <span class="diffaddedchars" style="background-color:#ddfade;">}}</span> <span class="diffcontext"> will yield the following exception:<br /><br />{</span> <span class="diffremovedchars" style="background-color: #ffe7e7; text-decoration:line-through;">{</span> <span class="diffaddedchars" style="background-color:#ddfade;">noformat}</span> <span class="diffcontext"><br />Caused by: java.lang.NullPointerException<br /> at org.hibernate.search.engine.spi.DocumentBuilderIndexedEntity.addFacetDocValues(DocumentBuilderIndexedEntity.java:664)<br /> at org.hibernate.search.engine.spi.DocumentBuilderIndexedEntity.buildDocumentFieldsForProperties(DocumentBuilderIndexedEntity.java:646)<br /> at org.hibernate.search.engine.spi.DocumentBuilderIndexedEntity.buildDocumentFields(DocumentBuilderIndexedEntity.java:463)<br /> at org.hibernate.search.engine.spi.DocumentBuilderIndexedEntity.getDocument(DocumentBuilderIndexedEntity.java:395)<br /> at org.hibernate.search.engine.spi.DocumentBuilderIndexedEntity.createAddWork(DocumentBuilderIndexedEntity.java:299)<br /> at org.hibernate.search.engine.spi.DocumentBuilderIndexedEntity.addWorkToQueue(DocumentBuilderIndexedEntity.java:240)<br />}}<br /></span> <span class="diffaddedchars" style="background-color:#ddfade;">{noformat}</span> <span class="diffcontext"><br /></span> <span class="diffaddedchars" style="background-color:#ddfade;"><br /></span> <span class="diffcontext">The documentation states (5.4.1.1) that</span> <span class="diffremovedchars" style="background-color: #ffe7e7; text-decoration:line-through;"> "</span> <span class="diffaddedchars" style="background-color:#ddfade;"> {quote}</span> <span class="diffcontext">null values should be avoided</span> <span class="diffremovedchars" style="background-color: #ffe7e7; text-decoration:line-through;">."</span> <span class="diffaddedchars" style="background-color:#ddfade;">{quote}</span> <span class="diffcontext">, not that null values are not supported. I do understand that null/empty fields cannot be indexed, but I thought that was the goal of the</span> <span class="diffaddedchars" style="background-color:#ddfade;"> {{</span> <span class="diffcontext"> @Field</span> <span class="diffaddedchars" style="background-color:#ddfade;">}}</span> <span class="diffcontext"> property</span> <span class="diffaddedchars" style="background-color:#ddfade;"> {{</span> <span class="diffcontext"> indexNullAs</span> <span class="diffaddedchars" style="background-color:#ddfade;">}}</span> <span class="diffcontext">, in order to have a marker in the index for null values. However it seems that the conversion from null in the index does not take this setting into account.<br /><br />The only bypass that I have found is to define a default, non-null, non-empty value to any indexed property used in conjunction with</span> <span class="diffaddedchars" style="background-color:#ddfade;"> {{</span> <span class="diffcontext"> @Facet</span> <span class="diffaddedchars" style="background-color:#ddfade;">}}</span> <span class="diffcontext"> within my domain object. That is extremely inconvenient since I would have to handle that specific "_null_" (for example) value throughout my application instead of only when filtering on facets. <br /><br />Please let me know if I have missed something, or if there is a configuration bypass.<br /><br />Thanks,</span>
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