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Example 16 with PersistentClassROF

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

the class MapValueCollectionStore method iterator.

/**
 * Accessor for an iterator for the set.
 * @param ownerSM StateManager for the set.
 * @return Iterator for the set.
 */
public Iterator<V> iterator(DNStateManager ownerSM) {
    ExecutionContext ec = ownerSM.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(ownerSM);
            iteratorStmtUnlocked = sqlStmt.getSQLText().toSQL();
            sqlStmt.addExtension(SQLStatement.EXTENSION_LOCK_FOR_UPDATE, true);
            iteratorStmtLocked = sqlStmt.getSQLText().toSQL();
        }
    }
    Boolean serializeRead = ec.getTransaction().getSerializeRead();
    String stmt = (serializeRead != null && serializeRead ? 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), ownerSM.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(ownerSM, rs, null, this);
                    }
                    rof = new PersistentClassROF(ec, rs, false, ec.getFetchPlan(), iteratorMappingDef, elementCmd, clr.classForName(elementType));
                    return new CollectionStoreIterator(ownerSM, 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);
    }
}
Also used : SQLException(java.sql.SQLException) ResultObjectFactory(org.datanucleus.store.rdbms.query.ResultObjectFactory) PreparedStatement(java.sql.PreparedStatement) StatementMappingIndex(org.datanucleus.store.rdbms.query.StatementMappingIndex) SQLStatement(org.datanucleus.store.rdbms.sql.SQLStatement) SQLController(org.datanucleus.store.rdbms.SQLController) NucleusDataStoreException(org.datanucleus.exceptions.NucleusDataStoreException) ExecutionContext(org.datanucleus.ExecutionContext) PersistentClassROF(org.datanucleus.store.rdbms.query.PersistentClassROF) ResultSet(java.sql.ResultSet) ManagedConnection(org.datanucleus.store.connection.ManagedConnection)

Example 17 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);
    }
}
Also used : MappedDatastoreException(org.datanucleus.store.rdbms.exceptions.MappedDatastoreException) SQLException(java.sql.SQLException) ResultObjectFactory(org.datanucleus.store.rdbms.query.ResultObjectFactory) PreparedStatement(java.sql.PreparedStatement) StatementMappingIndex(org.datanucleus.store.rdbms.query.StatementMappingIndex) StatementClassMapping(org.datanucleus.store.rdbms.query.StatementClassMapping) SQLController(org.datanucleus.store.rdbms.SQLController) SelectStatement(org.datanucleus.store.rdbms.sql.SelectStatement) NucleusDataStoreException(org.datanucleus.exceptions.NucleusDataStoreException) ExecutionContext(org.datanucleus.ExecutionContext) PersistentClassROF(org.datanucleus.store.rdbms.query.PersistentClassROF) ResultSet(java.sql.ResultSet) ManagedConnection(org.datanucleus.store.connection.ManagedConnection) ObjectProvider(org.datanucleus.state.ObjectProvider) NucleusException(org.datanucleus.exceptions.NucleusException)

Example 18 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);
    }
}
Also used : StatementParameterMapping(org.datanucleus.store.rdbms.query.StatementParameterMapping) MappedDatastoreException(org.datanucleus.store.rdbms.exceptions.MappedDatastoreException) SQLException(java.sql.SQLException) ResultObjectFactory(org.datanucleus.store.rdbms.query.ResultObjectFactory) PreparedStatement(java.sql.PreparedStatement) StatementMappingIndex(org.datanucleus.store.rdbms.query.StatementMappingIndex) StatementClassMapping(org.datanucleus.store.rdbms.query.StatementClassMapping) SQLController(org.datanucleus.store.rdbms.SQLController) SelectStatement(org.datanucleus.store.rdbms.sql.SelectStatement) NucleusDataStoreException(org.datanucleus.exceptions.NucleusDataStoreException) ExecutionContext(org.datanucleus.ExecutionContext) ReferenceMapping(org.datanucleus.store.rdbms.mapping.java.ReferenceMapping) PersistentClassROF(org.datanucleus.store.rdbms.query.PersistentClassROF) ResultSet(java.sql.ResultSet) ManagedConnection(org.datanucleus.store.connection.ManagedConnection) ObjectProvider(org.datanucleus.state.ObjectProvider)

Example 19 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);
    }
}
Also used : MappedDatastoreException(org.datanucleus.store.rdbms.exceptions.MappedDatastoreException) SQLException(java.sql.SQLException) ResultObjectFactory(org.datanucleus.store.rdbms.query.ResultObjectFactory) PreparedStatement(java.sql.PreparedStatement) StatementMappingIndex(org.datanucleus.store.rdbms.query.StatementMappingIndex) StatementClassMapping(org.datanucleus.store.rdbms.query.StatementClassMapping) SQLController(org.datanucleus.store.rdbms.SQLController) SelectStatement(org.datanucleus.store.rdbms.sql.SelectStatement) NucleusDataStoreException(org.datanucleus.exceptions.NucleusDataStoreException) ExecutionContext(org.datanucleus.ExecutionContext) ReferenceMapping(org.datanucleus.store.rdbms.mapping.java.ReferenceMapping) PersistentClassROF(org.datanucleus.store.rdbms.query.PersistentClassROF) ResultSet(java.sql.ResultSet) ManagedConnection(org.datanucleus.store.connection.ManagedConnection) ObjectProvider(org.datanucleus.state.ObjectProvider)

Example 20 with PersistentClassROF

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

the class MapValueCollectionStore method iterator.

/**
 * Accessor for an iterator for the set.
 * @param ownerOP ObjectProvider for the set.
 * @return Iterator for the set.
 */
public Iterator<V> 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);
    }
}
Also used : MappedDatastoreException(org.datanucleus.store.rdbms.exceptions.MappedDatastoreException) SQLException(java.sql.SQLException) ResultObjectFactory(org.datanucleus.store.rdbms.query.ResultObjectFactory) PreparedStatement(java.sql.PreparedStatement) StatementMappingIndex(org.datanucleus.store.rdbms.query.StatementMappingIndex) SQLStatement(org.datanucleus.store.rdbms.sql.SQLStatement) SQLController(org.datanucleus.store.rdbms.SQLController) NucleusDataStoreException(org.datanucleus.exceptions.NucleusDataStoreException) ExecutionContext(org.datanucleus.ExecutionContext) Transaction(org.datanucleus.Transaction) PersistentClassROF(org.datanucleus.store.rdbms.query.PersistentClassROF) ResultSet(java.sql.ResultSet) ManagedConnection(org.datanucleus.store.connection.ManagedConnection)

Aggregations

PersistentClassROF (org.datanucleus.store.rdbms.query.PersistentClassROF)21 PreparedStatement (java.sql.PreparedStatement)20 ResultSet (java.sql.ResultSet)20 SQLException (java.sql.SQLException)20 ExecutionContext (org.datanucleus.ExecutionContext)20 NucleusDataStoreException (org.datanucleus.exceptions.NucleusDataStoreException)20 ManagedConnection (org.datanucleus.store.connection.ManagedConnection)20 SQLController (org.datanucleus.store.rdbms.SQLController)20 ResultObjectFactory (org.datanucleus.store.rdbms.query.ResultObjectFactory)20 StatementMappingIndex (org.datanucleus.store.rdbms.query.StatementMappingIndex)20 StatementClassMapping (org.datanucleus.store.rdbms.query.StatementClassMapping)12 SelectStatement (org.datanucleus.store.rdbms.sql.SelectStatement)12 ReferenceMapping (org.datanucleus.store.rdbms.mapping.java.ReferenceMapping)11 MappedDatastoreException (org.datanucleus.store.rdbms.exceptions.MappedDatastoreException)8 SQLStatement (org.datanucleus.store.rdbms.sql.SQLStatement)8 Transaction (org.datanucleus.Transaction)6 NucleusException (org.datanucleus.exceptions.NucleusException)6 DNStateManager (org.datanucleus.state.DNStateManager)6 ObjectProvider (org.datanucleus.state.ObjectProvider)6 SerialisedReferenceMapping (org.datanucleus.store.rdbms.mapping.java.SerialisedReferenceMapping)5