Examples with PersistentClassROF org.datanucleus.store.rdbms.query.PersistentClassROF used on opensource projects

Example 6 with PersistentClassROF

use of org.datanucleus.store.rdbms.query.PersistentClassROF in project datanucleus-rdbms by datanucleus.

the class JoinMapStore method getValue.

/**
 * Method to retrieve a value from the Map given the key.
 * @param ownerOP ObjectProvider for the owner of the map.
 * @param key The key to retrieve the value for.
 * @return The value for this key
 * @throws NoSuchElementException if the value for the key was not found
 */
protected V getValue(ObjectProvider ownerOP, Object key) throws NoSuchElementException {
    if (!validateKeyForReading(ownerOP, key)) {
        return null;
    }
    ExecutionContext ec = ownerOP.getExecutionContext();
    if (getStmtLocked == null) {
        synchronized (// Make sure this completes in case another thread needs the same info
        this) {
            // Generate the statement, and statement mapping/parameter information
            SQLStatement sqlStmt = getSQLStatementForGet(ownerOP);
            getStmtUnlocked = sqlStmt.getSQLText().toSQL();
            sqlStmt.addExtension(SQLStatement.EXTENSION_LOCK_FOR_UPDATE, true);
            getStmtLocked = sqlStmt.getSQLText().toSQL();
        }
    }
    Transaction tx = ec.getTransaction();
    String stmt = (tx.getSerializeRead() != null && tx.getSerializeRead() ? getStmtLocked : getStmtUnlocked);
    Object value = null;
    try {
        ManagedConnection mconn = storeMgr.getConnectionManager().getConnection(ec);
        SQLController sqlControl = storeMgr.getSQLController();
        try {
            // Create the statement and supply owner/key params
            PreparedStatement ps = sqlControl.getStatementForQuery(mconn, stmt);
            StatementMappingIndex ownerIdx = getMappingParams.getMappingForParameter("owner");
            int numParams = ownerIdx.getNumberOfParameterOccurrences();
            for (int paramInstance = 0; paramInstance < numParams; paramInstance++) {
                ownerIdx.getMapping().setObject(ec, ps, ownerIdx.getParameterPositionsForOccurrence(paramInstance), ownerOP.getObject());
            }
            StatementMappingIndex keyIdx = getMappingParams.getMappingForParameter("key");
            numParams = keyIdx.getNumberOfParameterOccurrences();
            for (int paramInstance = 0; paramInstance < numParams; paramInstance++) {
                keyIdx.getMapping().setObject(ec, ps, keyIdx.getParameterPositionsForOccurrence(paramInstance), key);
            }
            try {
                ResultSet rs = sqlControl.executeStatementQuery(ec, mconn, stmt, ps);
                try {
                    boolean found = rs.next();
                    if (!found) {
                        throw new NoSuchElementException();
                    }
                    if (valuesAreEmbedded || valuesAreSerialised) {
                        int[] param = new int[valueMapping.getNumberOfDatastoreMappings()];
                        for (int i = 0; i < param.length; ++i) {
                            param[i] = i + 1;
                        }
                        if (valueMapping instanceof SerialisedPCMapping || valueMapping instanceof SerialisedReferenceMapping || valueMapping instanceof EmbeddedKeyPCMapping) {
                            // Value = Serialised
                            int ownerFieldNumber = ((JoinTable) mapTable).getOwnerMemberMetaData().getAbsoluteFieldNumber();
                            value = valueMapping.getObject(ec, rs, param, ownerOP, ownerFieldNumber);
                        } else {
                            // Value = Non-PC
                            value = valueMapping.getObject(ec, rs, param);
                        }
                    } else if (valueMapping instanceof ReferenceMapping) {
                        // Value = Reference (Interface/Object)
                        int[] param = new int[valueMapping.getNumberOfDatastoreMappings()];
                        for (int i = 0; i < param.length; ++i) {
                            param[i] = i + 1;
                        }
                        value = valueMapping.getObject(ec, rs, param);
                    } else {
                        // Value = PC
                        ResultObjectFactory rof = new PersistentClassROF(ec, rs, false, getMappingDef, valueCmd, clr.classForName(valueType));
                        value = rof.getObject();
                    }
                    JDBCUtils.logWarnings(rs);
                } finally {
                    rs.close();
                }
            } finally {
                sqlControl.closeStatement(mconn, ps);
            }
        } finally {
            mconn.release();
        }
    } catch (SQLException e) {
        throw new NucleusDataStoreException(Localiser.msg("056014", stmt), e);
    }
    return (V) value;
}

Example 7 with PersistentClassROF

use of org.datanucleus.store.rdbms.query.PersistentClassROF in project datanucleus-rdbms by datanucleus.

the class MapKeySetStore method iterator.

/**
 * Accessor for an iterator for the set.
 * @param ownerOP ObjectProvider for the set.
 * @return Iterator for the set.
 */
public Iterator<K> iterator(ObjectProvider ownerOP) {
    ExecutionContext ec = ownerOP.getExecutionContext();
    if (iteratorStmtLocked == null) {
        synchronized (// Make sure this completes in case another thread needs the same info
        this) {
            // Generate the statement, and statement mapping/parameter information
            SQLStatement sqlStmt = getSQLStatementForIterator(ownerOP);
            iteratorStmtUnlocked = sqlStmt.getSQLText().toSQL();
            sqlStmt.addExtension(SQLStatement.EXTENSION_LOCK_FOR_UPDATE, true);
            iteratorStmtLocked = sqlStmt.getSQLText().toSQL();
        }
    }
    Transaction tx = ec.getTransaction();
    String stmt = (tx.getSerializeRead() != null && tx.getSerializeRead() ? iteratorStmtLocked : iteratorStmtUnlocked);
    try {
        ManagedConnection mconn = storeMgr.getConnectionManager().getConnection(ec);
        SQLController sqlControl = storeMgr.getSQLController();
        try {
            // Create the statement and set the owner
            PreparedStatement ps = sqlControl.getStatementForQuery(mconn, stmt);
            StatementMappingIndex ownerIdx = iteratorMappingParams.getMappingForParameter("owner");
            int numParams = ownerIdx.getNumberOfParameterOccurrences();
            for (int paramInstance = 0; paramInstance < numParams; paramInstance++) {
                ownerIdx.getMapping().setObject(ec, ps, ownerIdx.getParameterPositionsForOccurrence(paramInstance), ownerOP.getObject());
            }
            try {
                ResultSet rs = sqlControl.executeStatementQuery(ec, mconn, stmt, ps);
                try {
                    ResultObjectFactory rof = null;
                    if (elementsAreEmbedded || elementsAreSerialised) {
                        // No ResultObjectFactory needed - handled by SetStoreIterator
                        return new CollectionStoreIterator(ownerOP, rs, null, this);
                    }
                    rof = new PersistentClassROF(ec, rs, false, iteratorMappingDef, elementCmd, clr.classForName(elementType));
                    return new CollectionStoreIterator(ownerOP, rs, rof, this);
                } finally {
                    rs.close();
                }
            } finally {
                sqlControl.closeStatement(mconn, ps);
            }
        } finally {
            mconn.release();
        }
    } catch (SQLException e) {
        throw new NucleusDataStoreException(Localiser.msg("056006", stmt), e);
    } catch (MappedDatastoreException e) {
        throw new NucleusDataStoreException(Localiser.msg("056006", stmt), e);
    }
}

Example 8 with PersistentClassROF

use of org.datanucleus.store.rdbms.query.PersistentClassROF in project datanucleus-rdbms by datanucleus.

the class FKSetStore method iterator.

/**
 * Accessor for an iterator for the set.
 * @param ownerOP ObjectProvider for the owner.
 * @return Iterator for the set.
 */
public Iterator<E> iterator(ObjectProvider ownerOP) {
    ExecutionContext ec = ownerOP.getExecutionContext();
    if (elementInfo == null || elementInfo.length == 0) {
        return null;
    }
    // Generate the statement, and statement mapping/parameter information
    IteratorStatement iterStmt = getIteratorStatement(ec, ec.getFetchPlan(), true);
    SelectStatement sqlStmt = iterStmt.getSelectStatement();
    StatementClassMapping iteratorMappingClass = iterStmt.getStatementClassMapping();
    // Input parameter(s) - the owner
    int inputParamNum = 1;
    StatementMappingIndex ownerStmtMapIdx = new StatementMappingIndex(ownerMapping);
    if (sqlStmt.getNumberOfUnions() > 0) {
        // Add parameter occurrence for each union of statement
        for (int j = 0; j < sqlStmt.getNumberOfUnions() + 1; j++) {
            int[] paramPositions = new int[ownerMapping.getNumberOfDatastoreMappings()];
            for (int k = 0; k < ownerMapping.getNumberOfDatastoreMappings(); k++) {
                paramPositions[k] = inputParamNum++;
            }
            ownerStmtMapIdx.addParameterOccurrence(paramPositions);
        }
    } else {
        int[] paramPositions = new int[ownerMapping.getNumberOfDatastoreMappings()];
        for (int k = 0; k < ownerMapping.getNumberOfDatastoreMappings(); k++) {
            paramPositions[k] = inputParamNum++;
        }
        ownerStmtMapIdx.addParameterOccurrence(paramPositions);
    }
    if (ec.getTransaction().getSerializeRead() != null && ec.getTransaction().getSerializeRead()) {
        sqlStmt.addExtension(SQLStatement.EXTENSION_LOCK_FOR_UPDATE, true);
    }
    String stmt = sqlStmt.getSQLText().toSQL();
    try {
        ManagedConnection mconn = storeMgr.getConnectionManager().getConnection(ec);
        SQLController sqlControl = storeMgr.getSQLController();
        try {
            // Create the statement
            PreparedStatement ps = sqlControl.getStatementForQuery(mconn, stmt);
            // Set the owner
            ObjectProvider stmtOwnerOP = BackingStoreHelper.getOwnerObjectProviderForBackingStore(ownerOP);
            int numParams = ownerStmtMapIdx.getNumberOfParameterOccurrences();
            for (int paramInstance = 0; paramInstance < numParams; paramInstance++) {
                ownerStmtMapIdx.getMapping().setObject(ec, ps, ownerStmtMapIdx.getParameterPositionsForOccurrence(paramInstance), stmtOwnerOP.getObject());
            }
            try {
                ResultSet rs = sqlControl.executeStatementQuery(ec, mconn, stmt, ps);
                try {
                    ResultObjectFactory rof = null;
                    if (elementsAreEmbedded || elementsAreSerialised) {
                        throw new NucleusException("Cannot have FK set with non-persistent objects");
                    }
                    rof = new PersistentClassROF(ec, rs, false, iteratorMappingClass, elementCmd, clr.classForName(elementType));
                    return new CollectionStoreIterator(ownerOP, rs, rof, this);
                } finally {
                    rs.close();
                }
            } finally {
                sqlControl.closeStatement(mconn, ps);
            }
        } finally {
            mconn.release();
        }
    } catch (SQLException | MappedDatastoreException e) {
        throw new NucleusDataStoreException(Localiser.msg("056006", stmt), e);
    }
}

Example 9 with PersistentClassROF

use of org.datanucleus.store.rdbms.query.PersistentClassROF in project datanucleus-rdbms by datanucleus.

the class JoinArrayStore method iterator.

/**
 * Method to return an iterator to the array.
 * @param ownerOP ObjectProvider for the owner of the array
 */
public Iterator<E> iterator(ObjectProvider ownerOP) {
    ExecutionContext ec = ownerOP.getExecutionContext();
    // Generate the statement, and statement mapping/parameter information
    IteratorStatement iterStmt = getIteratorStatement(ec, ec.getFetchPlan(), true);
    SelectStatement sqlStmt = iterStmt.sqlStmt;
    StatementClassMapping iteratorMappingClass = iterStmt.stmtClassMapping;
    // Input parameter(s) - the owner
    int inputParamNum = 1;
    StatementMappingIndex ownerIdx = new StatementMappingIndex(ownerMapping);
    if (sqlStmt.getNumberOfUnions() > 0) {
        // Add parameter occurrence for each union of statement
        for (int j = 0; j < sqlStmt.getNumberOfUnions() + 1; j++) {
            int[] paramPositions = new int[ownerMapping.getNumberOfDatastoreMappings()];
            for (int k = 0; k < paramPositions.length; k++) {
                paramPositions[k] = inputParamNum++;
            }
            ownerIdx.addParameterOccurrence(paramPositions);
        }
    } else {
        int[] paramPositions = new int[ownerMapping.getNumberOfDatastoreMappings()];
        for (int k = 0; k < paramPositions.length; k++) {
            paramPositions[k] = inputParamNum++;
        }
        ownerIdx.addParameterOccurrence(paramPositions);
    }
    StatementParameterMapping iteratorMappingParams = new StatementParameterMapping();
    iteratorMappingParams.addMappingForParameter("owner", ownerIdx);
    if (ec.getTransaction().getSerializeRead() != null && ec.getTransaction().getSerializeRead()) {
        sqlStmt.addExtension(SQLStatement.EXTENSION_LOCK_FOR_UPDATE, true);
    }
    String stmt = sqlStmt.getSQLText().toSQL();
    try {
        ManagedConnection mconn = storeMgr.getConnectionManager().getConnection(ec);
        SQLController sqlControl = storeMgr.getSQLController();
        try {
            // Create the statement
            PreparedStatement ps = sqlControl.getStatementForQuery(mconn, stmt);
            // Set the owner
            ObjectProvider stmtOwnerOP = BackingStoreHelper.getOwnerObjectProviderForBackingStore(ownerOP);
            int numParams = ownerIdx.getNumberOfParameterOccurrences();
            for (int paramInstance = 0; paramInstance < numParams; paramInstance++) {
                ownerIdx.getMapping().setObject(ec, ps, ownerIdx.getParameterPositionsForOccurrence(paramInstance), stmtOwnerOP.getObject());
            }
            try {
                ResultSet rs = sqlControl.executeStatementQuery(ec, mconn, stmt, ps);
                try {
                    if (elementsAreEmbedded || elementsAreSerialised) {
                        // No ResultObjectFactory needed - handled by SetStoreIterator
                        return new ArrayStoreIterator(ownerOP, rs, null, this);
                    } else if (elementMapping instanceof ReferenceMapping) {
                        // No ResultObjectFactory needed - handled by SetStoreIterator
                        return new ArrayStoreIterator(ownerOP, rs, null, this);
                    } else {
                        ResultObjectFactory rof = new PersistentClassROF(ec, rs, false, iteratorMappingClass, elementCmd, clr.classForName(elementType));
                        return new ArrayStoreIterator(ownerOP, rs, rof, this);
                    }
                } finally {
                    rs.close();
                }
            } finally {
                sqlControl.closeStatement(mconn, ps);
            }
        } finally {
            mconn.release();
        }
    } catch (SQLException | MappedDatastoreException e) {
        throw new NucleusDataStoreException(Localiser.msg("056006", stmt), e);
    }
}

Example 10 with PersistentClassROF

use of org.datanucleus.store.rdbms.query.PersistentClassROF in project datanucleus-rdbms by datanucleus.

the class JoinSetStore method iterator.

/**
 * Accessor for an iterator for the set.
 * @param ownerOP ObjectProvider for the set.
 * @return Iterator for the set.
 */
public Iterator<E> iterator(ObjectProvider ownerOP) {
    ExecutionContext ec = ownerOP.getExecutionContext();
    // Generate the statement, and statement mapping/parameter information
    IteratorStatement iterStmt = getIteratorStatement(ec, ec.getFetchPlan(), true);
    SelectStatement sqlStmt = iterStmt.sqlStmt;
    StatementClassMapping iteratorMappingClass = iterStmt.stmtClassMapping;
    // Input parameter(s) - the owner
    int inputParamNum = 1;
    StatementMappingIndex ownerStmtMapIdx = new StatementMappingIndex(ownerMapping);
    if (sqlStmt.getNumberOfUnions() > 0) {
        // Add parameter occurrence for each union of statement
        for (int j = 0; j < sqlStmt.getNumberOfUnions() + 1; j++) {
            int[] paramPositions = new int[ownerMapping.getNumberOfDatastoreMappings()];
            for (int k = 0; k < paramPositions.length; k++) {
                paramPositions[k] = inputParamNum++;
            }
            ownerStmtMapIdx.addParameterOccurrence(paramPositions);
        }
    } else {
        int[] paramPositions = new int[ownerMapping.getNumberOfDatastoreMappings()];
        for (int k = 0; k < paramPositions.length; k++) {
            paramPositions[k] = inputParamNum++;
        }
        ownerStmtMapIdx.addParameterOccurrence(paramPositions);
    }
    if (ec.getTransaction().getSerializeRead() != null && ec.getTransaction().getSerializeRead()) {
        sqlStmt.addExtension(SQLStatement.EXTENSION_LOCK_FOR_UPDATE, true);
    }
    String stmt = sqlStmt.getSQLText().toSQL();
    try {
        ManagedConnection mconn = storeMgr.getConnectionManager().getConnection(ec);
        SQLController sqlControl = storeMgr.getSQLController();
        try {
            // Create the statement
            PreparedStatement ps = sqlControl.getStatementForQuery(mconn, stmt);
            // Set the owner
            ObjectProvider stmtOwnerOP = BackingStoreHelper.getOwnerObjectProviderForBackingStore(ownerOP);
            int numParams = ownerStmtMapIdx.getNumberOfParameterOccurrences();
            for (int paramInstance = 0; paramInstance < numParams; paramInstance++) {
                ownerStmtMapIdx.getMapping().setObject(ec, ps, ownerStmtMapIdx.getParameterPositionsForOccurrence(paramInstance), stmtOwnerOP.getObject());
            }
            try {
                ResultSet rs = sqlControl.executeStatementQuery(ec, mconn, stmt, ps);
                try {
                    if (elementsAreEmbedded || elementsAreSerialised) {
                        // No ResultObjectFactory needed - handled by SetStoreIterator
                        return new CollectionStoreIterator(ownerOP, rs, null, this);
                    } else if (elementMapping instanceof ReferenceMapping) {
                        // No ResultObjectFactory needed - handled by SetStoreIterator
                        return new CollectionStoreIterator(ownerOP, rs, null, this);
                    } else {
                        ResultObjectFactory rof = new PersistentClassROF(ec, rs, false, iteratorMappingClass, elementCmd, clr.classForName(elementType));
                        return new CollectionStoreIterator(ownerOP, rs, rof, this);
                    }
                } finally {
                    rs.close();
                }
            } finally {
                sqlControl.closeStatement(mconn, ps);
            }
        } finally {
            mconn.release();
        }
    } catch (SQLException | MappedDatastoreException e) {
        throw new NucleusDataStoreException(Localiser.msg("056006", stmt), e);
    }
}