Class ScrollableResultSetTableModel
- java.lang.Object
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- javax.swing.table.AbstractTableModel
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- org.jfree.report.modules.misc.tablemodel.ScrollableResultSetTableModel
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- All Implemented Interfaces:
java.io.Serializable
,javax.swing.table.TableModel
,CloseableTableModel
public class ScrollableResultSetTableModel extends javax.swing.table.AbstractTableModel implements CloseableTableModel
A tableModel which is backed up by a java.sql.ResultSet. Use this to directly feed your database data into JFreeReport. If you have trouble using this TableModel and you have either enough memory or your query result is not huge, you may want to useResultSetTableModelFactory.generateDefaultTableModel (ResultSet rs)
. That implementation will read all data from the given ResultSet and keep that data in memory. Use the close() function to close the ResultSet contained in this model.- Author:
- Thomas Morgner
- See Also:
- Serialized Form
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Constructor Summary
Constructors Modifier Constructor Description protected
ScrollableResultSetTableModel(boolean labelMapMode)
Creates a new scrollable result set with no resultset assigned and the specified label map mode.ScrollableResultSetTableModel(java.sql.ResultSet resultset, boolean labelMapMode)
Constructs the model.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
close()
Clears the model of the current result set.java.lang.Class
getColumnClass(int column)
Returns the class of the resultset column.java.lang.String
getColumnClassName(int column)
Returns the classname of the resultset column.int
getColumnCount()
Returns the number of columns in the ResultSet.java.lang.String
getColumnName(int column)
Returns the columnLabel or column name for the given column.int
getRowCount()
Get a rowCount.java.lang.Object
getValueAt(int row, int column)
Returns the value of the specified row and the specified column from within the resultset.boolean
isLabelMapMode()
Returns the column name mode used to map column names into column indices.void
updateResultSet(java.sql.ResultSet resultset)
Updates the result set in this model with the given ResultSet object.-
Methods inherited from class javax.swing.table.AbstractTableModel
addTableModelListener, findColumn, fireTableCellUpdated, fireTableChanged, fireTableDataChanged, fireTableRowsDeleted, fireTableRowsInserted, fireTableRowsUpdated, fireTableStructureChanged, getListeners, getTableModelListeners, isCellEditable, removeTableModelListener, setValueAt
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Constructor Detail
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ScrollableResultSetTableModel
public ScrollableResultSetTableModel(java.sql.ResultSet resultset, boolean labelMapMode) throws java.sql.SQLException
Constructs the model.- Parameters:
resultset
- the result set.labelMapMode
- defines, whether to use column names or column labels to compute the column index.- Throws:
java.sql.SQLException
- if there is a problem with the result set.
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ScrollableResultSetTableModel
protected ScrollableResultSetTableModel(boolean labelMapMode)
Creates a new scrollable result set with no resultset assigned and the specified label map mode.- Parameters:
labelMapMode
- defines, whether to use column names or column labels to compute the column index.
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Method Detail
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isLabelMapMode
public boolean isLabelMapMode()
Returns the column name mode used to map column names into column indices. If true, then the Label is used, else the Name is used.- Returns:
- true, if the column label is used for the mapping, false otherwise.
- See Also:
ResultSetMetaData.getColumnLabel(int)
,ResultSetMetaData.getColumnName(int)
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updateResultSet
public void updateResultSet(java.sql.ResultSet resultset) throws java.sql.SQLException
Updates the result set in this model with the given ResultSet object.- Parameters:
resultset
- the new result set.- Throws:
java.sql.SQLException
- if there is a problem with the result set.
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close
public void close()
Clears the model of the current result set. The resultset is closed.- Specified by:
close
in interfaceCloseableTableModel
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getRowCount
public int getRowCount()
Get a rowCount. This can be a very expensive operation on large datasets. Returns -1 if the total amount of rows is not known to the result set.- Specified by:
getRowCount
in interfacejavax.swing.table.TableModel
- Returns:
- the row count.
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getColumnCount
public int getColumnCount()
Returns the number of columns in the ResultSet. Returns 0 if no result set is set or the column count could not be retrieved.- Specified by:
getColumnCount
in interfacejavax.swing.table.TableModel
- Returns:
- the column count.
- See Also:
ResultSetMetaData.getColumnCount()
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getColumnName
public java.lang.String getColumnName(int column)
Returns the columnLabel or column name for the given column. Whether the label or the name is returned depends on the label map mode.- Specified by:
getColumnName
in interfacejavax.swing.table.TableModel
- Overrides:
getColumnName
in classjavax.swing.table.AbstractTableModel
- Parameters:
column
- the column index.- Returns:
- the column name.
- See Also:
ResultSetMetaData.getColumnLabel(int)
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getValueAt
public java.lang.Object getValueAt(int row, int column)
Returns the value of the specified row and the specified column from within the resultset.- Specified by:
getValueAt
in interfacejavax.swing.table.TableModel
- Parameters:
row
- the row index.column
- the column index.- Returns:
- the value.
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getColumnClass
public java.lang.Class getColumnClass(int column)
Returns the class of the resultset column. Returns Object.class if an error occurred.- Specified by:
getColumnClass
in interfacejavax.swing.table.TableModel
- Overrides:
getColumnClass
in classjavax.swing.table.AbstractTableModel
- Parameters:
column
- the column index.- Returns:
- the column class.
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getColumnClassName
public java.lang.String getColumnClassName(int column)
Returns the classname of the resultset column. Returns Object.class if an error occurred.- Parameters:
column
- the column index.- Returns:
- the column class name.
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