com.healthmarketscience.jackcess.impl
Class DatabaseImpl

java.lang.Object
  com.healthmarketscience.jackcess.impl.DatabaseImpl

All Implemented Interfaces:

Database, Closeable, Flushable, Iterable<Table>

public class DatabaseImpl
extends Object
implements Database

Author:

Tim McCune

Nested Class Summary

static class

DatabaseImpl.FileFormatDetails Internal details for each FileForrmat

Nested classes/interfaces inherited from interface com.healthmarketscience.jackcess.Database

Database.FileFormat

Field Summary

static String	DEFAULT_RESOURCE_PATH the default value for the resource path used to load classpath resources.
static int	HIDDEN_OBJECT_FLAG this object is hidden
static String	RO_CHANNEL_MODE read-only channel access mode
static String	RW_CHANNEL_MODE read/write channel access mode

Fields inherited from interface com.healthmarketscience.jackcess.Database

ALLOW_AUTONUM_INSERT_PROPERTY, BROKEN_NIO_PROPERTY, CHARSET_PROPERTY_PREFIX, COLUMN_ORDER_PROPERTY, DEFAULT_AUTO_SYNC, DEFAULT_COLUMN_ORDER, FK_ENFORCE_PROPERTY, RESOURCE_PATH_PROPERTY, TIMEZONE_PROPERTY

Constructor Summary

protected

DatabaseImpl(File file, FileChannel channel, boolean closeChannel, boolean autoSync, Database.FileFormat fileFormat, Charset charset, TimeZone timeZone, CodecProvider provider) Create a new database by reading it in from a FileChannel.

Method Summary

void	close() Close the database file (and any linked databases).
static DatabaseImpl	create(Database.FileFormat fileFormat, File mdbFile, FileChannel channel, boolean autoSync, Charset charset, TimeZone timeZone) Create a new Database for the given fileFormat
void	createLinkedTable(String name, String linkedDbName, String linkedTableName) Create a new table in this database
void	createTable(String name, List<ColumnBuilder> columns) Deprecated. use TableBuilder instead
void	createTable(String name, List<ColumnBuilder> columns, List<IndexBuilder> indexes) Deprecated. use TableBuilder instead
void	flush() Flushes any current changes to the database file (and any linked databases) to disk.
TableImpl	getAccessControlEntries()
Charset	getCharset() Gets currently configured Charset (always non-null).
Table.ColumnOrder	getColumnOrder() Gets currently configured Table.ColumnOrder (always non-null).
ColumnValidatorFactory	getColumnValidatorFactory() Gets currently configured ColumnValidatorFactory (always non-null).
String	getDatabasePassword()
PropertyMap	getDatabaseProperties()
static boolean	getDefaultAllowAutoNumberInsert() Returns the default allow auto number insert policy.
static Charset	getDefaultCharset(JetFormat format) Returns the default Charset for the given JetFormat.
short	getDefaultCodePage()
static Table.ColumnOrder	getDefaultColumnOrder() Returns the default Table.ColumnOrder.
static boolean	getDefaultEnforceForeignKeys() Returns the default enforce foreign-keys policy.
ColumnImpl.SortOrder	getDefaultSortOrder()
static TimeZone	getDefaultTimeZone() Returns the default TimeZone.
ErrorHandler	getErrorHandler() Gets the currently configured ErrorHandler (always non-null).
File	getFile() Returns the File underlying this Database
Database.FileFormat	getFileFormat() Returns the FileFormat of this database (which may involve inspecting the database itself).
static DatabaseImpl.FileFormatDetails	getFileFormatDetails(Database.FileFormat fileFormat)
JetFormat	getFormat()
Map<String,Database>	getLinkedDatabases() Returns an unmodifiable view of the currently loaded linked databases, mapped from the linked database file name to the linked database.
LinkResolver	getLinkResolver() Gets the currently configured LinkResolver (always non-null).
String	getName()
PageChannel	getPageChannel()
PropertyMaps	getPropertiesForObject(int objectId)
List<Query>	getQueries() Finds all the queries in the database.
List<Relationship>	getRelationships() Finds all the relationships in the database in non-system tables.
List<Relationship>	getRelationships(Table table) Finds all the relationships in the database for the given table.
List<Relationship>	getRelationships(TableImpl table1, TableImpl table2)
List<Relationship>	getRelationships(Table table1, Table table2) Finds all the relationships in the database between the given tables.
protected static InputStream	getResourceAsStream(String resourceName)
PropertyMap	getSummaryProperties()
TableImpl	getSystemCatalog()
TableImpl	getSystemComplexColumns()
List<Relationship>	getSystemRelationships() Finds all the relationships in the database, including system tables.
TableImpl	getSystemTable(String tableName) Returns a reference to any available table in this access database, including system tables.
Set<String>	getSystemTableNames()
TableImpl	getTable(int tableDefPageNumber)
TableImpl	getTable(String name)
protected TableImpl	getTable(String name, boolean includeSystemTables)
TableMetaData	getTableMetaData(String name)
Set<String>	getTableNames()
TimeZone	getTimeZone() Gets currently configured TimeZone (always non-null).
PropertyMap	getUserDefinedProperties()
boolean	isAllowAutoNumberInsert() Gets current allow auto number insert policy.
static boolean	isBlank(String name) Returns true if the given string is null or all blank space, false otherwise.
boolean	isEnforceForeignKeys() Gets current foreign-key enforcement policy.
boolean	isLinkedTable(Table table) Returns true if this Database links to the given Table, false otherwise.
Iterator<Table>	iterator()
Iterator<Table>	iterator(TableIterableBuilder builder)
TableIterableBuilder	newIterable() Convenience method for constructing a new TableIterableBuilder for this cursor.
static DatabaseImpl	open(File mdbFile, boolean readOnly, FileChannel channel, boolean autoSync, Charset charset, TimeZone timeZone, CodecProvider provider) Open an existing Database.
PropertyMaps	readProperties(byte[] propsBytes, int objectId, RowIdImpl rowId)
void	setAllowAutoNumberInsert(Boolean allowAutoNumInsert) Sets the new auto number insert policy for the database (unless overridden at the Table level).
void	setCharset(Charset newCharset) Sets a new Charset.
void	setColumnOrder(Table.ColumnOrder newColumnOrder) Sets a new Table.ColumnOrder.
void	setColumnValidatorFactory(ColumnValidatorFactory newFactory) Sets a new ColumnValidatorFactory.
void	setEnforceForeignKeys(Boolean newEnforceForeignKeys) Sets a new foreign-key enforcement policy.
void	setErrorHandler(ErrorHandler newErrorHandler) Sets a new ErrorHandler.
void	setLinkResolver(LinkResolver newLinkResolver) Sets a new LinkResolver.
void	setTimeZone(TimeZone newTimeZone) Sets a new TimeZone.
static String	toLookupName(String name)
String	toString()
protected static void	transferDbFrom(FileChannel channel, InputStream in) Copies the given db InputStream to the given channel using the most efficient means possible.
static void	validateIdentifierName(String name, int maxLength, String identifierType) Validates an identifier name.
void	validateNewTableName(String name)

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_RESOURCE_PATH

public static final String DEFAULT_RESOURCE_PATH

the default value for the resource path used to load classpath resources.

See Also:

Constant Field Values

HIDDEN_OBJECT_FLAG

public static final int HIDDEN_OBJECT_FLAG

this object is hidden

See Also:

Constant Field Values

RO_CHANNEL_MODE

public static final String RO_CHANNEL_MODE

read-only channel access mode

See Also:

Constant Field Values

RW_CHANNEL_MODE

public static final String RW_CHANNEL_MODE

read/write channel access mode

See Also:

Constant Field Values

Constructor Detail

DatabaseImpl

protected DatabaseImpl(File file,
                       FileChannel channel,
                       boolean closeChannel,
                       boolean autoSync,
                       Database.FileFormat fileFormat,
                       Charset charset,
                       TimeZone timeZone,
                       CodecProvider provider)
                throws IOException

Create a new database by reading it in from a FileChannel.

Parameters:

file - the File to which the channel is connected

channel - File channel of the database. This needs to be a FileChannel instead of a ReadableByteChannel because we need to randomly jump around to various points in the file.

autoSync - whether or not to enable auto-syncing on write. if true, writes will be immediately flushed to disk. This leaves the database in a (fairly) consistent state on each write, but can be very inefficient for many updates. if false, flushing to disk happens at the jvm's leisure, which can be much faster, but may leave the database in an inconsistent state if failures are encountered during writing. Writes may be flushed at any time using flush().

fileFormat - version of new database (if known)

charset - Charset to use, if null, uses default

timeZone - TimeZone to use, if null, uses default

Throws:

IOException

Method Detail

open

public static DatabaseImpl open(File mdbFile,
                                boolean readOnly,
                                FileChannel channel,
                                boolean autoSync,
                                Charset charset,
                                TimeZone timeZone,
                                CodecProvider provider)
                         throws IOException

Open an existing Database. If the existing file is not writeable or the readOnly flag is true, the file will be opened read-only.

Parameters:

mdbFile - File containing the database

readOnly - iff true, force opening file in read-only mode

channel - pre-opened FileChannel. if provided explicitly, it will not be closed by this Database instance

autoSync - whether or not to enable auto-syncing on write. if true, writes will be immediately flushed to disk. This leaves the database in a (fairly) consistent state on each write, but can be very inefficient for many updates. if false, flushing to disk happens at the jvm's leisure, which can be much faster, but may leave the database in an inconsistent state if failures are encountered during writing. Writes may be flushed at any time using flush().

charset - Charset to use, if null, uses default

timeZone - TimeZone to use, if null, uses default

provider - CodecProvider for handling page encoding/decoding, may be null if no special encoding is necessary

Throws:

IOException

create

public static DatabaseImpl create(Database.FileFormat fileFormat,
                                  File mdbFile,
                                  FileChannel channel,
                                  boolean autoSync,
                                  Charset charset,
                                  TimeZone timeZone)
                           throws IOException

Create a new Database for the given fileFormat

Parameters:

fileFormat - version of new database.

mdbFile - Location to write the new database to. If this file already exists, it will be overwritten.

channel - pre-opened FileChannel. if provided explicitly, it will not be closed by this Database instance

autoSync - whether or not to enable auto-syncing on write. if true, writes will be immediately flushed to disk. This leaves the database in a (fairly) consistent state on each write, but can be very inefficient for many updates. if false, flushing to disk happens at the jvm's leisure, which can be much faster, but may leave the database in an inconsistent state if failures are encountered during writing. Writes may be flushed at any time using flush().

charset - Charset to use, if null, uses default

timeZone - TimeZone to use, if null, uses default

Throws:

IOException

getFile

public File getFile()

Description copied from interface: Database

Returns the File underlying this Database

Specified by:

getFile in interface Database

getName

public String getName()

getPageChannel

public PageChannel getPageChannel()

getFormat

public JetFormat getFormat()

getSystemCatalog

public TableImpl getSystemCatalog()

Returns:

The system catalog table

getAccessControlEntries

public TableImpl getAccessControlEntries()
                                  throws IOException

Returns:

The system Access Control Entries table (loaded on demand)

Throws:

IOException

getSystemComplexColumns

public TableImpl getSystemComplexColumns()
                                  throws IOException

Returns:

the complex column system table (loaded on demand)

Throws:

IOException

getErrorHandler

public ErrorHandler getErrorHandler()

Description copied from interface: Database

Gets the currently configured ErrorHandler (always non-null). This will be used to handle all errors unless overridden at the Table or Cursor level.

Specified by:

getErrorHandler in interface Database

setErrorHandler

public void setErrorHandler(ErrorHandler newErrorHandler)

Description copied from interface: Database

Sets a new ErrorHandler. If null, resets to the ErrorHandler.DEFAULT.

Specified by:

setErrorHandler in interface Database

getLinkResolver

public LinkResolver getLinkResolver()

Description copied from interface: Database

Gets the currently configured LinkResolver (always non-null). This will be used to handle all linked database loading.

Specified by:

getLinkResolver in interface Database

setLinkResolver

public void setLinkResolver(LinkResolver newLinkResolver)

Description copied from interface: Database

Sets a new LinkResolver. If null, resets to the LinkResolver.DEFAULT.

Specified by:

setLinkResolver in interface Database

getLinkedDatabases

public Map<String,Database> getLinkedDatabases()

Description copied from interface: Database

Returns an unmodifiable view of the currently loaded linked databases, mapped from the linked database file name to the linked database. This information may be useful for implementing a LinkResolver.

Specified by:

getLinkedDatabases in interface Database

isLinkedTable

public boolean isLinkedTable(Table table)
                      throws IOException

Description copied from interface: Database

Returns true if this Database links to the given Table, false otherwise.

Specified by:

isLinkedTable in interface Database

Throws:

IOException

getTimeZone

public TimeZone getTimeZone()

Description copied from interface: Database

Gets currently configured TimeZone (always non-null).

Specified by:

getTimeZone in interface Database

setTimeZone

public void setTimeZone(TimeZone newTimeZone)

Description copied from interface: Database

Sets a new TimeZone. If null, resets to the default value.

Specified by:

setTimeZone in interface Database

getCharset

public Charset getCharset()

Description copied from interface: Database

Gets currently configured Charset (always non-null).

Specified by:

getCharset in interface Database

setCharset

public void setCharset(Charset newCharset)

Description copied from interface: Database

Sets a new Charset. If null, resets to the default value.

Specified by:

setCharset in interface Database

getColumnOrder

public Table.ColumnOrder getColumnOrder()

Description copied from interface: Database

Gets currently configured Table.ColumnOrder (always non-null).

Specified by:

getColumnOrder in interface Database

setColumnOrder

public void setColumnOrder(Table.ColumnOrder newColumnOrder)

Description copied from interface: Database

Sets a new Table.ColumnOrder. If null, resets to the default value.

Specified by:

setColumnOrder in interface Database

isEnforceForeignKeys

public boolean isEnforceForeignKeys()

Description copied from interface: Database

Gets current foreign-key enforcement policy.

Specified by:

isEnforceForeignKeys in interface Database

setEnforceForeignKeys

public void setEnforceForeignKeys(Boolean newEnforceForeignKeys)

Description copied from interface: Database

Sets a new foreign-key enforcement policy. If null, resets to the default value.

Specified by:

setEnforceForeignKeys in interface Database

isAllowAutoNumberInsert

public boolean isAllowAutoNumberInsert()

Description copied from interface: Database

Gets current allow auto number insert policy. By default, jackcess does not allow auto numbers to be inserted or updated directly (they are always handled internally by the Table). Setting this policy to true allows the caller to optionally set the value explicitly when adding or updating rows (if a value is not provided, it will still be handled internally by the Table). This value can be set database-wide using Database.setAllowAutoNumberInsert(java.lang.Boolean) and/or on a per-table basis using Table.setAllowAutoNumberInsert(java.lang.Boolean) (and/or on a jvm-wide using the Database.ALLOW_AUTONUM_INSERT_PROPERTY system property). Note that enabling this feature should be done with care to reduce the chances of screwing up the database.

Specified by:

isAllowAutoNumberInsert in interface Database

setAllowAutoNumberInsert

public void setAllowAutoNumberInsert(Boolean allowAutoNumInsert)

Description copied from interface: Database

Sets the new auto number insert policy for the database (unless overridden at the Table level). If null, resets to the default value.

Specified by:

setAllowAutoNumberInsert in interface Database

getColumnValidatorFactory

public ColumnValidatorFactory getColumnValidatorFactory()

Description copied from interface: Database

Gets currently configured ColumnValidatorFactory (always non-null).

Specified by:

getColumnValidatorFactory in interface Database

setColumnValidatorFactory

public void setColumnValidatorFactory(ColumnValidatorFactory newFactory)

Description copied from interface: Database

Sets a new ColumnValidatorFactory. If null, resets to the default value. The configured ColumnValidatorFactory will be used to create ColumnValidator instances on any user tables loaded from this point onward (this will not be used for system tables).

Specified by:

setColumnValidatorFactory in interface Database

getFileFormat

public Database.FileFormat getFileFormat()
                                  throws IOException

Description copied from interface: Database

Returns the FileFormat of this database (which may involve inspecting the database itself).

Specified by:

getFileFormat in interface Database

Throws:

IOException

getDefaultSortOrder

public ColumnImpl.SortOrder getDefaultSortOrder()
                                         throws IOException

Returns:

the currently configured database default language sort order for textual columns

Throws:

IOException

getDefaultCodePage

public short getDefaultCodePage()
                         throws IOException

Returns:

the currently configured database default code page for textual data (may not be relevant to all database versions)

Throws:

IOException

readProperties

public PropertyMaps readProperties(byte[] propsBytes,
                                   int objectId,
                                   RowIdImpl rowId)
                            throws IOException

Returns:

a PropertyMaps instance decoded from the given bytes (always returns non-null result).

Throws:

IOException

getTableNames

public Set<String> getTableNames()
                          throws IOException

Specified by:

getTableNames in interface Database

Returns:

The names of all of the user tables

Throws:

IOException

getSystemTableNames

public Set<String> getSystemTableNames()
                                throws IOException

Specified by:

getSystemTableNames in interface Database

Returns:

The names of all of the system tables (String). Note, in order to read these tables, you must use Database.getSystemTable(java.lang.String). Extreme care should be taken if modifying these tables directly!.

Throws:

IOException

iterator

public Iterator<Table> iterator()

Specified by:

iterator in interface Database

Specified by:

iterator in interface Iterable<Table>

Returns:

an unmodifiable Iterator of the user Tables in this Database.

iterator

public Iterator<Table> iterator(TableIterableBuilder builder)

newIterable

public TableIterableBuilder newIterable()

Description copied from interface: Database

Convenience method for constructing a new TableIterableBuilder for this cursor. A TableIterableBuilder provides a variety of options for more flexible iteration of Tables.

Specified by:

newIterable in interface Database

getTable

public TableImpl getTable(String name)
                   throws IOException

Specified by:

getTable in interface Database

Parameters:

name - User table name (case-insensitive)

Returns:

The Table, or null if it doesn't exist (or is a system table)

Throws:

IOException

getTableMetaData

public TableMetaData getTableMetaData(String name)
                               throws IOException

Specified by:

getTableMetaData in interface Database

Parameters:

name - Table name (case-insensitive), may be any table type (i.e. includes system or linked tables).

Returns:

The meta data for the table, or null if it doesn't exist

Throws:

IOException

getTable

public TableImpl getTable(int tableDefPageNumber)
                   throws IOException

Parameters:

tableDefPageNumber - the page number of a table definition

Returns:

The table, or null if it doesn't exist

Throws:

IOException

getTable

protected TableImpl getTable(String name,
                             boolean includeSystemTables)
                      throws IOException

Parameters:

name - Table name

includeSystemTables - whether to consider returning a system table

Returns:

The table, or null if it doesn't exist

Throws:

IOException

createTable

@Deprecated
public void createTable(String name,
                                   List<ColumnBuilder> columns)
                 throws IOException

Deprecated. use TableBuilder instead

Create a new table in this database

Parameters:

name - Name of the table to create

columns - List of Columns in the table

Throws:

IOException

createTable

@Deprecated
public void createTable(String name,
                                   List<ColumnBuilder> columns,
                                   List<IndexBuilder> indexes)
                 throws IOException

Deprecated. use TableBuilder instead

Create a new table in this database

Parameters:

name - Name of the table to create

columns - List of Columns in the table

indexes - List of IndexBuilders describing indexes for the table

Throws:

IOException

createLinkedTable

public void createLinkedTable(String name,
                              String linkedDbName,
                              String linkedTableName)
                       throws IOException

Description copied from interface: Database

Create a new table in this database

Specified by:

createLinkedTable in interface Database

Parameters:

name - Name of the table to create in this database

linkedDbName - path to the linked database

linkedTableName - name of the table in the linked database

Throws:

IOException

getRelationships

public List<Relationship> getRelationships(Table table1,
                                           Table table2)
                                    throws IOException

Description copied from interface: Database

Finds all the relationships in the database between the given tables.

Specified by:

getRelationships in interface Database

Throws:

IOException

getRelationships

public List<Relationship> getRelationships(TableImpl table1,
                                           TableImpl table2)
                                    throws IOException

Throws:

IOException

getRelationships

public List<Relationship> getRelationships(Table table)
                                    throws IOException

Description copied from interface: Database

Finds all the relationships in the database for the given table.

Specified by:

getRelationships in interface Database

Throws:

IOException

getRelationships

public List<Relationship> getRelationships()
                                    throws IOException

Description copied from interface: Database

Finds all the relationships in the database in non-system tables.

Warning, this may load all the Tables (metadata, not data) in the database which could cause memory issues.

Specified by:

getRelationships in interface Database

Throws:

IOException

getSystemRelationships

public List<Relationship> getSystemRelationships()
                                          throws IOException

Description copied from interface: Database

Finds all the relationships in the database, including system tables.

Warning, this may load all the Tables (metadata, not data) in the database which could cause memory issues.

Specified by:

getSystemRelationships in interface Database

Throws:

IOException

getQueries

public List<Query> getQueries()
                       throws IOException

Description copied from interface: Database

Finds all the queries in the database.

Specified by:

getQueries in interface Database

Throws:

IOException

getSystemTable

public TableImpl getSystemTable(String tableName)
                         throws IOException

Description copied from interface: Database

Returns a reference to any available table in this access database, including system tables.

Warning, this method is not designed for common use, only for the occassional time when access to a system table is necessary. Messing with system tables can strip the paint off your house and give your whole family a permanent, orange afro. You have been warned.

Specified by:

getSystemTable in interface Database

Parameters:

tableName - Table name, may be a system table

Returns:

The table, or null if it doesn't exist

Throws:

IOException

getDatabaseProperties

public PropertyMap getDatabaseProperties()
                                  throws IOException

Specified by:

getDatabaseProperties in interface Database

Returns:

the core properties for the database

Throws:

IOException

getSummaryProperties

public PropertyMap getSummaryProperties()
                                 throws IOException

Specified by:

getSummaryProperties in interface Database

Returns:

the summary properties for the database

Throws:

IOException

getUserDefinedProperties

public PropertyMap getUserDefinedProperties()
                                     throws IOException

Specified by:

getUserDefinedProperties in interface Database

Returns:

the user-defined properties for the database

Throws:

IOException

getPropertiesForObject

public PropertyMaps getPropertiesForObject(int objectId)
                                    throws IOException

Returns:

the PropertyMaps for the object with the given id

Throws:

IOException

getDatabasePassword

public String getDatabasePassword()
                           throws IOException

Specified by:

getDatabasePassword in interface Database

Returns:

the current database password, or null if none set.

Throws:

IOException

flush

public void flush()
           throws IOException

Description copied from interface: Database

Flushes any current changes to the database file (and any linked databases) to disk.

Specified by:

flush in interface Database

Specified by:

flush in interface Flushable

Throws:

IOException

close

public void close()
           throws IOException

Description copied from interface: Database

Close the database file (and any linked databases). A Database must be closed after use or changes could be lost and the Database file corrupted. A Database instance should be treated like any other external resource which would be closed in a finally block (e.g. an OutputStream or jdbc Connection).

Specified by:

close in interface Database

Specified by:

close in interface Closeable

Throws:

IOException

validateNewTableName

public void validateNewTableName(String name)
                          throws IOException

Throws:

IOException

validateIdentifierName

public static void validateIdentifierName(String name,
                                          int maxLength,
                                          String identifierType)

Validates an identifier name. Names of fields, controls, and objects in Microsoft Access:

• Can include any combination of letters, numbers, spaces, and special characters except a period (.), an exclamation point (!), an accent grave (`), and brackets ([ ]).
• Can't begin with leading spaces.
• Can't include control characters (ASCII values 0 through 31).

isBlank

public static boolean isBlank(String name)

Returns true if the given string is null or all blank space, false otherwise.

toString

public String toString()

Overrides:

toString in class Object

toLookupName

public static String toLookupName(String name)

Returns:

a string usable in the _tableLookup map.

getDefaultTimeZone

public static TimeZone getDefaultTimeZone()

Returns the default TimeZone. This is normally the platform default TimeZone as returned by TimeZone.getDefault(), but can be overridden using the system property "com.healthmarketscience.jackcess.timeZone".

getDefaultCharset

public static Charset getDefaultCharset(JetFormat format)

Returns the default Charset for the given JetFormat. This may or may not be platform specific, depending on the format, but can be overridden using a system property composed of the prefix "com.healthmarketscience.jackcess.charset." followed by the JetFormat version to which the charset should apply, e.g. "com.healthmarketscience.jackcess.charset.VERSION_3".

getDefaultColumnOrder

public static Table.ColumnOrder getDefaultColumnOrder()

Returns the default Table.ColumnOrder. This defaults to Database.DEFAULT_COLUMN_ORDER, but can be overridden using the system property "com.healthmarketscience.jackcess.columnOrder".

getDefaultEnforceForeignKeys

public static boolean getDefaultEnforceForeignKeys()

Returns the default enforce foreign-keys policy. This defaults to true, but can be overridden using the system property "com.healthmarketscience.jackcess.enforceForeignKeys".

getDefaultAllowAutoNumberInsert

public static boolean getDefaultAllowAutoNumberInsert()

Returns the default allow auto number insert policy. This defaults to false, but can be overridden using the system property "com.healthmarketscience.jackcess.allowAutoNumberInsert".

transferDbFrom

protected static void transferDbFrom(FileChannel channel,
                                     InputStream in)
                              throws IOException

Copies the given db InputStream to the given channel using the most efficient means possible.

Throws:

IOException

getResourceAsStream

protected static InputStream getResourceAsStream(String resourceName)
                                          throws IOException

Throws:

IOException

getFileFormatDetails

public static DatabaseImpl.FileFormatDetails getFileFormatDetails(Database.FileFormat fileFormat)