com.healthmarketscience.jackcess
Interface Table

All Superinterfaces:

Iterable<Row>

All Known Implementing Classes:

TableImpl

public interface Table
extends Iterable<Row>

A single database table. A Table instance is retrieved from a Database instance. The Table instance provides access to the table metadata as well as the table data. There are basic data operations on the Table interface (i.e. iterator() addRow(java.lang.Object...), updateRow(com.healthmarketscience.jackcess.Row) and deleteRow(com.healthmarketscience.jackcess.Row)), but for advanced search and data manipulation a Cursor instance should be used. New Tables can be created using a TableBuilder. The Joiner utility can be used to traverse table relationships (e.g. find rows in another table based on a foreign-key relationship).

A Table instance is not thread-safe (see Database for more thread-safety details).

Author:

James Ahlborn

Usage:

General: This class is general use.

Nested Class Summary

static class

Table.ColumnOrder enum which controls the ordering of the columns in a table.

Method Summary

Object[]	addRow(Object... row) Adds a single row to this table and writes it to disk.
<M extends Map<String,Object>> M	addRowFromMap(M row) Calls asRow(java.util.Map) on the given row map and passes the result to addRow(java.lang.Object...).
List<? extends Object[]>	addRows(List<? extends Object[]> rows) Add multiple rows to this table, only writing to disk after all rows have been written, and every time a data page is filled.
<M extends Map<String,Object>> List<M>	addRowsFromMaps(List<M> rows) Calls asRow(java.util.Map) on the given row maps and passes the results to addRows(java.util.List).
Object[]	asRow(Map<String,?> rowMap) Converts a map of columnName -> columnValue to an array of row values appropriate for a call to addRow(Object...).
Object[]	asUpdateRow(Map<String,?> rowMap) Converts a map of columnName -> columnValue to an array of row values appropriate for a call to Cursor.updateCurrentRow(Object...).
Row	deleteRow(Row row) Delete the given row.
Column	getColumn(String name)
int	getColumnCount()
List<? extends Column>	getColumns()
Database	getDatabase()
Cursor	getDefaultCursor()
ErrorHandler	getErrorHandler() Gets the currently configured ErrorHandler (always non-null).
Index	getForeignKeyIndex(Table otherTable)
Index	getIndex(String name)
List<? extends Index>	getIndexes()
String	getName()
Row	getNextRow()
Index	getPrimaryKeyIndex()
PropertyMap	getProperties()
int	getRowCount()
boolean	isHidden() Whether or not this table has been marked as hidden.
Iterator<Row>	iterator() Calls reset() on this table and returns a modifiable Iterator which will iterate through all the rows of this table.
CursorBuilder	newCursor() Convenience method for constructing a new CursorBuilder for this Table.
void	reset() After calling this method, getNextRow() will return the first row in the table, see Cursor.reset() (uses the default cursor).
void	setErrorHandler(ErrorHandler newErrorHandler) Sets a new ErrorHandler.
Row	updateRow(Row row) Update the given row.

Method Detail

getName

String getName()

Returns:

The name of the table

Usage:

General: This method is general use.

isHidden

boolean isHidden()

Whether or not this table has been marked as hidden.

Usage:

General: This method is general use.

getColumnCount

int getColumnCount()

Usage:

General: This method is general use.

getDatabase

Database getDatabase()

Usage:

General: This method is general use.

getErrorHandler

ErrorHandler getErrorHandler()

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

Usage:

Intermediate: This method requires moderate API knowledge.

setErrorHandler

void setErrorHandler(ErrorHandler newErrorHandler)

Sets a new ErrorHandler. If null, resets to using the ErrorHandler configured at the Database level.

Usage:

Intermediate: This method requires moderate API knowledge.

getColumns

List<? extends Column> getColumns()

Returns:

All of the columns in this table (unmodifiable List)

Usage:

General: This method is general use.

getColumn

Column getColumn(String name)

Returns:

the column with the given name

Usage:

General: This method is general use.

getProperties

PropertyMap getProperties()
                          throws IOException

Returns:

the properties for this table

Throws:

IOException

Usage:

General: This method is general use.

getIndexes

List<? extends Index> getIndexes()

Returns:

All of the Indexes on this table (unmodifiable List)

Usage:

Intermediate: This method requires moderate API knowledge.

getIndex

Index getIndex(String name)

Returns:

the index with the given name

Throws:

IllegalArgumentException - if there is no index with the given name

Usage:

Intermediate: This method requires moderate API knowledge.

getPrimaryKeyIndex

Index getPrimaryKeyIndex()

Returns:

the primary key index for this table

Throws:

IllegalArgumentException - if there is no primary key index on this table

Usage:

Intermediate: This method requires moderate API knowledge.

getForeignKeyIndex

Index getForeignKeyIndex(Table otherTable)

Returns:

the foreign key index joining this table to the given other table

Throws:

IllegalArgumentException - if there is no relationship between this table and the given table

Usage:

Intermediate: This method requires moderate API knowledge.

asRow

Object[] asRow(Map<String,?> rowMap)

Converts a map of columnName -> columnValue to an array of row values appropriate for a call to addRow(Object...).

Usage:

General: This method is general use.

asUpdateRow

Object[] asUpdateRow(Map<String,?> rowMap)

Converts a map of columnName -> columnValue to an array of row values appropriate for a call to Cursor.updateCurrentRow(Object...).

Usage:

General: This method is general use.

getRowCount

int getRowCount()

Usage:

General: This method is general use.

addRow

Object[] addRow(Object... row)
                throws IOException

Adds a single row to this table and writes it to disk. The values are expected to be given in the order that the Columns are listed by the getColumns() method. This is by default the storage order of the Columns in the database, however this order can be influenced by setting the ColumnOrder via Database.setColumnOrder(com.healthmarketscience.jackcess.Table.ColumnOrder) prior to opening the Table. The asRow(java.util.Map) method can be used to easily convert a row Map into the appropriate row array for this Table.

Note, if this table has an auto-number column, the value generated will be put back into the given row array (assuming the given row array is at least as long as the number of Columns in this Table).

Parameters:

row - row values for a single row. the given row array will be modified if this table contains an auto-number column, otherwise it will not be modified.

Returns:

the given row values if long enough, otherwise a new array. the returned array will contain any autonumbers generated

Throws:

IOException

Usage:

General: This method is general use.

addRowFromMap

<M extends Map<String,Object>> M addRowFromMap(M row)
                                           throws IOException

Calls asRow(java.util.Map) on the given row map and passes the result to addRow(java.lang.Object...).

Note, if this table has an auto-number column, the value generated will be put back into the given row map.

Returns:

the given row map, which will contain any autonumbers generated

Throws:

IOException

Usage:

General: This method is general use.

addRows

List<? extends Object[]> addRows(List<? extends Object[]> rows)
                                 throws IOException

Add multiple rows to this table, only writing to disk after all rows have been written, and every time a data page is filled. This is much more efficient than calling addRow(java.lang.Object...) multiple times.

Note, if this table has an auto-number column, the values written will be put back into the given row arrays (assuming the given row array is at least as long as the number of Columns in this Table).

Parameters:

rows - List of Object[] row values. the rows will be modified if this table contains an auto-number column, otherwise they will not be modified.

Returns:

the given row values list (unless row values were to small), with appropriately sized row values (the ones passed in if long enough). the returned arrays will contain any autonumbers generated

Throws:

IOException

See Also:

for more details on row arrays

Usage:

General: This method is general use.

addRowsFromMaps

<M extends Map<String,Object>> List<M> addRowsFromMaps(List<M> rows)
                                                   throws IOException

Calls asRow(java.util.Map) on the given row maps and passes the results to addRows(java.util.List).

Note, if this table has an auto-number column, the values generated will be put back into the appropriate row maps.

Returns:

the given row map list, where the row maps will contain any autonumbers generated

Throws:

IOException

Usage:

General: This method is general use.

updateRow

Row updateRow(Row row)
              throws IOException

Update the given row. Provided Row must have previously been returned from this Table.

Returns:

the given row, updated with the current row values

Throws:

IllegalStateException - if the given row is not valid, or deleted.

IOException

deleteRow

Row deleteRow(Row row)
              throws IOException

Delete the given row. Provided Row must have previously been returned from this Table.

Returns:

the given row

Throws:

IllegalStateException - if the given row is not valid

IOException

iterator

Iterator<Row> iterator()

Calls reset() on this table and returns a modifiable Iterator which will iterate through all the rows of this table. Use of the Iterator follows the same restrictions as a call to getNextRow().

For more advanced iteration, use the default cursor directly.

Specified by:

iterator in interface Iterable<Row>

Throws:

RuntimeIOException - if an IOException is thrown by one of the operations, the actual exception will be contained within

Usage:

General: This method is general use.

reset

void reset()

After calling this method, getNextRow() will return the first row in the table, see Cursor.reset() (uses the default cursor).

Usage:

General: This method is general use.

getNextRow

Row getNextRow()
               throws IOException

Returns:

The next row in this table (Column name -> Column value) (uses the default cursor)

Throws:

IOException

Usage:

General: This method is general use.

getDefaultCursor

Cursor getDefaultCursor()

Returns:

a simple Cursor, initialized on demand and held by this table. This cursor backs the row traversal methods available on the Table interface. For advanced Table traversal and manipulation, use the Cursor directly.

newCursor

CursorBuilder newCursor()

Convenience method for constructing a new CursorBuilder for this Table.