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<p style="margin: 10px 0 0 0">The proposed pull request is working. Unfortunately it is limited to embedded. Is there a way to query entities based on <b>partial</b> composite key information through <b>embedded<span class="error">[Ids]</span></b>.</p>
<p style="margin: 10px 0 0 0">public void embeddedIdQuery() throws Exception {</p>
<p style="margin: 10px 0 0 0"> EntityManager entityManager = emf.createEntityManager();</p>
<p style="margin: 10px 0 0 0"> OgmSession session = (OgmSession) HibernateUtils.getHibernateSession(entityManager);<br /> Transaction transaction = session.beginTransaction();</p>
<p style="margin: 10px 0 0 0"> try </p> { // only the firstName information is available for query. List<?> result1 = session.createQuery( "from Person e where *e.id.firstName* = 'Emmanuel'" ).list(); // the entire composite key elements have to be available in order to identify a entity PersonPK emmanuelPk = new PersonPK(); emmanuelPk.setFirstName( "Emmanuel" ); emmanuelPk.setLastName( "Bernard" ); Object result2 = session.get(Person.class, emmanuelPk); transaction.commit(); }
<p style="margin: 10px 0 0 0"> finally </p> { session.clear(); session.close(); }
<p style="margin: 10px 0 0 0">}</p>
<p style="margin: 10px 0 0 0">@Entity<br /> @Indexed<br /> public class Person {</p>
<p style="margin: 10px 0 0 0"> @EmbeddedId<br /> @FieldBridge(impl = PersonPKBridge.class)<br /> @DocumentId<br /> private PersonPK id;</p>
<p style="margin: 10px 0 0 0"> private String favoriteColor;</p>
<p style="margin: 10px 0 0 0"> public PersonPK getId() </p> { return id; }
<p style="margin: 10px 0 0 0"> public void setId(PersonPK id) </p> { this.id = id; }
<p style="margin: 10px 0 0 0"> @Field<br /> public String getFavoriteColor() </p> { return favoriteColor; }
<p style="margin: 10px 0 0 0"> public void setFavoriteColor(String favoriteColor) </p> { this.favoriteColor = favoriteColor; }
<p style="margin: 10px 0 0 0">}</p>
<p style="margin: 10px 0 0 0">@Embeddable<br /> public class PersonPK implements Serializable {</p>
<p style="margin: 10px 0 0 0"> private static final long serialVersionUID = 1L;</p>
<p style="margin: 10px 0 0 0"> private String firstName;<br /> private String lastName;</p>
<p style="margin: 10px 0 0 0"> public String getLastName() </p> { return lastName; }
<p style="margin: 10px 0 0 0"> public void setLastName(String lastName) </p> { this.lastName = lastName; }
<p style="margin: 10px 0 0 0"> public String getFirstName() </p> { return firstName; }
<p style="margin: 10px 0 0 0"> public void setFirstName(String firstName) </p> { this.firstName = firstName; }
<p style="margin: 10px 0 0 0"> @Override<br /> public boolean equals(Object o) {<br /> if ( this == o ) </p> { return true; }
<p style="margin: 10px 0 0 0"> if ( !( o instanceof PersonPK ) ) </p> { return false; }<br /> PersonPK personPK = (PersonPK) o;<br /> <br /> if ( firstName != null ? !firstName.equals( personPK.firstName ) : personPK.firstName != null ) { return false; }
<p style="margin: 10px 0 0 0"> if ( lastName != null ? !lastName.equals( personPK.lastName ) : personPK.lastName != null ) </p> { return false; }
<p style="margin: 10px 0 0 0"> return true;<br /> }</p>
<p style="margin: 10px 0 0 0"> @Override<br /> public int hashCode() </p> { int result; result = ( firstName != null ? firstName.hashCode() : 0 ); result = 31 * result + ( lastName != null ? lastName.hashCode() : 0 ); return result; }
<p style="margin: 10px 0 0 0">}</p>
<p style="margin: 10px 0 0 0">public class PersonPKBridge implements TwoWayFieldBridge {</p>
<p style="margin: 10px 0 0 0"> @Override<br /> public Object get(String name, Document document) </p> { PersonPK id = new PersonPK(); IndexableField field = document.getField( name + ".firstName" ); id.setFirstName( field.stringValue() ); field = document.getField( name + ".lastName" ); id.setLastName( field.stringValue() ); return id; }
<p style="margin: 10px 0 0 0"> @Override<br /> public String objectToString(Object object) </p> { PersonPK id = (PersonPK) object; StringBuilder sb = new StringBuilder(); sb.append( id.getFirstName() ).append( " " ).append( id.getLastName() ); return sb.toString(); }
<p style="margin: 10px 0 0 0"> @Override<br /> public void set(String name, Object value, Document document, LuceneOptions luceneOptions) </p> { PersonPK id = (PersonPK) value; //store each property in a unique field luceneOptions.addFieldToDocument( name + ".firstName", id.getFirstName(), document ); luceneOptions.addFieldToDocument( name + ".lastName", id.getLastName(), document ); //store the unique string representation in the named field luceneOptions.addFieldToDocument( name, objectToString( id ), document ); }
<p style="margin: 10px 0 0 0">}</p>
<p style="margin: 10px 0 0 0">public void embeddedIdPersist() </p> { PersonPK emmanuelPk = new PersonPK(); emmanuelPk.setFirstName( "Emmanuel" ); emmanuelPk.setLastName( "Bernard" ); Person emmanuel = new Person(); emmanuel.setFavoriteColor( "Blue" ); emmanuel.setId( emmanuelPk ); PersonPK petePk = new PersonPK(); petePk.setFirstName( "Pete" ); petePk.setLastName( "Drexler" ); Person pete = new Person(); pete.setFavoriteColor( "Green" ); pete.setId( petePk ); persist(emmanuel, pete); }
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