com.healthmarketscience.jackcess.impl

Class FKEnforcer

java.lang.Object

com.healthmarketscience.jackcess.impl.FKEnforcer

final class FKEnforcer
extends java.lang.Object

Utility class used by Table to enforce foreign-key relationships (if enabled).

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
(package private) static class	FKEnforcer.SharedState Shared state used by all FKEnforcers for a given Database.

Field Summary

Fields

Modifier and Type	Field and Description
private java.util.List<ColumnImpl>	_cols
private java.util.List<Joiner>	_primaryJoinersChkDel
private java.util.List<Joiner>	_primaryJoinersChkUp
private java.util.List<Joiner>	_primaryJoinersDoDel
private java.util.List<Joiner>	_primaryJoinersDoUp
private java.util.List<Joiner>	_secondaryJoiners
private TableImpl	_table
private static ColumnMatcher	MATCHER

Constructor Summary

Constructors

Constructor and Description
FKEnforcer(TableImpl table)

Method Summary

Modifier and Type	Method and Description
void	addRow(java.lang.Object[] row) Handles foregn-key constraints when adding a row.
private static boolean	anyUpdates(Joiner joiner, java.lang.Object[] oldRow, java.lang.Object[] newRow)
private boolean	anyUpdates(java.lang.Object[] oldRow, java.lang.Object[] newRow)
void	deleteRow(java.lang.Object[] row) Handles foregn-key constraints when deleting a row.
private boolean	enforcing()
private void	initialize() Does secondary initialization, if necessary.
(package private) static FKEnforcer.SharedState	initSharedState()
private static void	requireNoSecondaryValues(Joiner joiner, java.lang.Object[] row)
private static void	requirePrimaryValues(Joiner joiner, java.lang.Object[] row)
void	updateRow(java.lang.Object[] oldRow, java.lang.Object[] newRow) Handles foregn-key constraints when updating a row.
private static void	updateSecondaryValues(Joiner joiner, java.lang.Object[] oldFromRow, java.lang.Object[] newFromRow)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

MATCHER

private static final ColumnMatcher MATCHER

_table

private final TableImpl _table

_cols

private final java.util.List<ColumnImpl> _cols

_primaryJoinersChkUp

private java.util.List<Joiner> _primaryJoinersChkUp

_primaryJoinersChkDel

private java.util.List<Joiner> _primaryJoinersChkDel

_primaryJoinersDoUp

private java.util.List<Joiner> _primaryJoinersDoUp

_primaryJoinersDoDel

private java.util.List<Joiner> _primaryJoinersDoDel

_secondaryJoiners

private java.util.List<Joiner> _secondaryJoiners

Constructor Detail

FKEnforcer

FKEnforcer(TableImpl table)

Method Detail

initialize

private void initialize()
                 throws java.io.IOException

Does secondary initialization, if necessary.

Throws:

java.io.IOException

addRow

public void addRow(java.lang.Object[] row)
            throws java.io.IOException

Handles foregn-key constraints when adding a row.

Parameters:

row - new row in the Table's row format, including all values used in any foreign-key relationships

Throws:

java.io.IOException

updateRow

public void updateRow(java.lang.Object[] oldRow,
                      java.lang.Object[] newRow)
               throws java.io.IOException

Handles foregn-key constraints when updating a row.

Parameters:

oldRow - old row in the Table's row format, including all values used in any foreign-key relationships

newRow - new row in the Table's row format, including all values used in any foreign-key relationships

Throws:

java.io.IOException

deleteRow

public void deleteRow(java.lang.Object[] row)
               throws java.io.IOException

Handles foregn-key constraints when deleting a row.

Parameters:

row - old row in the Table's row format, including all values used in any foreign-key relationships

Throws:

java.io.IOException

requirePrimaryValues

private static void requirePrimaryValues(Joiner joiner,
                                         java.lang.Object[] row)
                                  throws java.io.IOException

Throws:

java.io.IOException

requireNoSecondaryValues

private static void requireNoSecondaryValues(Joiner joiner,
                                             java.lang.Object[] row)
                                      throws java.io.IOException

Throws:

java.io.IOException

updateSecondaryValues

private static void updateSecondaryValues(Joiner joiner,
                                          java.lang.Object[] oldFromRow,
                                          java.lang.Object[] newFromRow)
                                   throws java.io.IOException

Throws:

java.io.IOException

anyUpdates

private boolean anyUpdates(java.lang.Object[] oldRow,
                           java.lang.Object[] newRow)

anyUpdates

private static boolean anyUpdates(Joiner joiner,
                                  java.lang.Object[] oldRow,
                                  java.lang.Object[] newRow)

enforcing

private boolean enforcing()

initSharedState

static FKEnforcer.SharedState initSharedState()