Examples with FetchGroupMetaData org.datanucleus.metadata.FetchGroupMetaData used on opensource projects

Example 6 with FetchGroupMetaData

use of org.datanucleus.metadata.FetchGroupMetaData in project datanucleus-api-jdo by datanucleus.

the class JDOPersistenceManager method newNamedQuery.

/**
 * Construct a query instance with the candidate class and the query name.
 * @param cls The class to query
 * @param queryName Name of the query.
 * @return The query
 * @param <T> Candidate type for the query
 */
public <T> Query<T> newNamedQuery(Class<T> cls, String queryName) {
    assertIsOpen();
    // Throw exception on incomplete input
    if (queryName == null) {
        throw new JDOUserException(Localiser.msg("011005", null, cls));
    }
    // Find the Query for the specified class
    ClassLoaderResolver clr = ec.getClassLoaderResolver();
    QueryMetaData qmd = ec.getMetaDataManager().getMetaDataForQuery(cls, clr, queryName);
    if (qmd == null) {
        throw new JDOUserException(Localiser.msg("011005", queryName, cls));
    }
    // Create the Query
    Query query = newQuery(qmd.getLanguage(), qmd.getQuery());
    if (cls != null) {
        query.setClass(cls);
        if (!ec.getStoreManager().managesClass(cls.getName())) {
            // Load the candidate class since not yet managed
            ec.getStoreManager().manageClasses(clr, cls.getName());
        }
    }
    // Optional args that should only be used with SQL
    if (qmd.getLanguage().equals(QueryLanguage.JDOQL.toString()) && (qmd.isUnique() || qmd.getResultClass() != null)) {
        throw new JDOUserException(Localiser.msg("011007", queryName));
    }
    if (qmd.isUnique()) {
        query.setUnique(true);
    }
    if (qmd.getResultClass() != null) {
        // Set the result class, allowing for it being in the same package as the candidate
        Class resultCls = null;
        try {
            resultCls = clr.classForName(qmd.getResultClass());
        } catch (ClassNotResolvedException cnre) {
            if (cls != null) {
                try {
                    String resultClassName = cls.getPackage().getName() + "." + qmd.getResultClass();
                    resultCls = clr.classForName(resultClassName);
                } catch (ClassNotResolvedException cnre2) {
                    throw new JDOUserException(Localiser.msg("011008", queryName, qmd.getResultClass()));
                }
            }
        }
        query.setResultClass(resultCls);
    }
    // Add any extensions
    Map<String, String> extmds = qmd.getExtensions();
    if (extmds != null) {
        Iterator<Entry<String, String>> entryIter = extmds.entrySet().iterator();
        while (entryIter.hasNext()) {
            Entry<String, String> entry = entryIter.next();
            query.addExtension(entry.getKey(), entry.getValue());
        }
    }
    if (qmd.isUnmodifiable()) {
        query.setUnmodifiable();
    }
    if (qmd.getFetchPlanName() != null) {
        // Apply any named FetchPlan to the query
        FetchPlanMetaData fpmd = ec.getMetaDataManager().getMetaDataForFetchPlan(qmd.getFetchPlanName());
        if (fpmd != null) {
            org.datanucleus.FetchPlan fp = new org.datanucleus.FetchPlan(ec, clr);
            fp.removeGroup(org.datanucleus.FetchPlan.DEFAULT);
            FetchGroupMetaData[] fgmds = fpmd.getFetchGroupMetaData();
            for (FetchGroupMetaData fgmd : fgmds) {
                fp.addGroup(fgmd.getName());
            }
            fp.setMaxFetchDepth(fpmd.getMaxFetchDepth());
            fp.setFetchSize(fpmd.getFetchSize());
            ((JDOQuery) query).getInternalQuery().setFetchPlan(fp);
        }
    }
    return query;
}

Example 7 with FetchGroupMetaData

use of org.datanucleus.metadata.FetchGroupMetaData in project datanucleus-api-jdo by datanucleus.

the class TypeMetadataImpl method getFetchGroups.

public FetchGroupMetadata[] getFetchGroups() {
    Set<FetchGroupMetaData> internalFgmds = getInternal().getFetchGroupMetaData();
    if (internalFgmds == null) {
        return null;
    }
    FetchGroupMetadataImpl[] fgmds = new FetchGroupMetadataImpl[internalFgmds.size()];
    int i = 0;
    for (FetchGroupMetaData fgmd : internalFgmds) {
        fgmds[i] = new FetchGroupMetadataImpl(fgmd);
        fgmds[i].parent = this;
        i++;
    }
    return fgmds;
}

Example 8 with FetchGroupMetaData

use of org.datanucleus.metadata.FetchGroupMetaData in project datanucleus-api-jdo by datanucleus.

the class FetchPlanMetadataImpl method newFetchGroupMetadata.

/* (non-Javadoc)
     * @see javax.jdo.metadata.FetchPlanMetadata#newFetchGroupMetadata(java.lang.String)
     */
public FetchGroupMetadata newFetchGroupMetadata(String name) {
    FetchGroupMetaData internalFgmd = getInternal().newFetchGroupMetaData(name);
    FetchGroupMetadataImpl fgmd = new FetchGroupMetadataImpl(internalFgmd);
    fgmd.parent = this;
    return fgmd;
}

Example 9 with FetchGroupMetaData

use of org.datanucleus.metadata.FetchGroupMetaData in project tests by datanucleus.

the class AnnotationTest method testFetchGroups.

/**
 * Test for use of annotations with fetch groups
 */
public void testFetchGroups() {
    ClassMetaData cmd1 = (ClassMetaData) metaDataMgr.getMetaDataForClass(Person.class.getName(), clr);
    String prefix = cmd1.getFullClassName() + " : ";
    Set<FetchGroupMetaData> fgmds = cmd1.getFetchGroupMetaData();
    assertNotNull(prefix + "fetch group info is incorrect", fgmds);
    FetchGroupMetaData fgmd = fgmds.iterator().next();
    assertEquals(prefix + "fetch group name incorrect", "names", fgmd.getName());
    assertFalse(prefix + "fetch group fields incorrect", fgmd.getPostLoad());
    Set<FetchGroupMemberMetaData> fgmmds = fgmd.getMembers();
    assertNotNull(fgmmds);
    assertEquals(prefix + "number of fetch group fields is wrong", 2, fgmmds.size());
    Iterator<FetchGroupMemberMetaData> fgmmdIter = fgmmds.iterator();
    FetchGroupMemberMetaData fgmmd0 = fgmmdIter.next();
    FetchGroupMemberMetaData fgmmd1 = fgmmdIter.next();
    assertTrue(prefix + "fields in fetch group are incorrect", (fgmmd0.getName().equals("firstName") && fgmmd1.getName().equals("lastName")) || (fgmmd1.getName().equals("firstName") && fgmmd0.getName().equals("lastName")));
}

Example 10 with FetchGroupMetaData

use of org.datanucleus.metadata.FetchGroupMetaData in project datanucleus-api-jdo by datanucleus.

the class JDOMetaDataHelper method getXMLForMetaData.

public String getXMLForMetaData(FetchGroupMetaData fgmd, String prefix, String indent) {
    StringBuilder str = new StringBuilder();
    str.append(prefix).append("<fetch-group name=\"" + fgmd.getName() + "\">\n");
    // Add fetch-groups
    Set<FetchGroupMetaData> fetchGroups = fgmd.getFetchGroups();
    if (fetchGroups != null) {
        for (FetchGroupMetaData subfgmd : fetchGroups) {
            str.append(getXMLForMetaData(subfgmd, prefix + indent, indent));
        }
    }
    // Add fields
    Set<FetchGroupMemberMetaData> members = fgmd.getMembers();
    if (members != null) {
        for (FetchGroupMemberMetaData fgmmd : members) {
            str.append(getXMLForMetaData(fgmmd, prefix + indent, indent));
        }
    }
    str.append(prefix + "</fetch-group>\n");
    return str.toString();
}