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java.lang.Objectorg.jfree.data.general.AbstractDataset
org.jfree.data.category.DefaultCategoryDataset
A default implementation of the CategoryDataset
interface.
Constructor Summary | |
DefaultCategoryDataset()
Creates a new (empty) dataset. |
Method Summary | |
void |
addValue(double value,
java.lang.Comparable rowKey,
java.lang.Comparable columnKey)
Adds a value to the table. |
void |
addValue(java.lang.Number value,
java.lang.Comparable rowKey,
java.lang.Comparable columnKey)
Adds a value to the table. |
void |
clear()
Clears all data from the dataset and sends a DatasetChangeEvent
to all registered listeners. |
boolean |
equals(java.lang.Object obj)
Tests if this object is equal to another. |
int |
getColumnCount()
Returns the number of columns in the table. |
int |
getColumnIndex(java.lang.Comparable key)
Returns the column index for a given key. |
java.lang.Comparable |
getColumnKey(int column)
Returns a column key. |
java.util.List |
getColumnKeys()
Returns the column keys. |
int |
getRowCount()
Returns the number of rows in the table. |
int |
getRowIndex(java.lang.Comparable key)
Returns the row index for a given key. |
java.lang.Comparable |
getRowKey(int row)
Returns a row key. |
java.util.List |
getRowKeys()
Returns the row keys. |
java.lang.Number |
getValue(java.lang.Comparable rowKey,
java.lang.Comparable columnKey)
Returns the value for a pair of keys. |
java.lang.Number |
getValue(int row,
int column)
Returns a value from the table. |
int |
hashCode()
Returns a hash code for the dataset. |
void |
incrementValue(double value,
java.lang.Comparable rowKey,
java.lang.Comparable columnKey)
Adds the specified value to an existing value in the dataset (if the existing value is null , it is treated as if it were 0.0). |
void |
removeColumn(java.lang.Comparable columnKey)
Removes a column from the dataset. |
void |
removeColumn(int columnIndex)
Removes a column from the dataset. |
void |
removeRow(java.lang.Comparable rowKey)
Removes a row from the dataset. |
void |
removeRow(int rowIndex)
Removes a row from the dataset. |
void |
removeValue(java.lang.Comparable rowKey,
java.lang.Comparable columnKey)
Removes a value from the dataset. |
void |
setValue(double value,
java.lang.Comparable rowKey,
java.lang.Comparable columnKey)
Adds or updates a value in the table and sends a DatasetChangeEvent to all registered listeners. |
void |
setValue(java.lang.Number value,
java.lang.Comparable rowKey,
java.lang.Comparable columnKey)
Adds or updates a value in the table and sends a DatasetChangeEvent to all registered listeners. |
Methods inherited from class org.jfree.data.general.AbstractDataset |
addChangeListener, clone, fireDatasetChanged, getGroup, hasListener, notifyListeners, removeChangeListener, setGroup, validateObject |
Methods inherited from class java.lang.Object |
finalize, getClass, notify, notifyAll, toString, wait, wait, wait |
Methods inherited from interface org.jfree.data.general.Dataset |
addChangeListener, getGroup, removeChangeListener, setGroup |
Constructor Detail |
public DefaultCategoryDataset()
Method Detail |
public int getRowCount()
getRowCount
in interface Values2D
public int getColumnCount()
getColumnCount
in interface Values2D
public java.lang.Number getValue(int row, int column)
getValue
in interface Values2D
row
- the row index (zero-based).column
- the column index (zero-based).
null
).public java.lang.Comparable getRowKey(int row)
getRowKey
in interface KeyedValues2D
row
- the row index (zero-based).
public int getRowIndex(java.lang.Comparable key)
getRowIndex
in interface KeyedValues2D
key
- the row key.
public java.util.List getRowKeys()
getRowKeys
in interface KeyedValues2D
public java.lang.Comparable getColumnKey(int column)
getColumnKey
in interface KeyedValues2D
column
- the column index (zero-based).
public int getColumnIndex(java.lang.Comparable key)
getColumnIndex
in interface KeyedValues2D
key
- the column key.
public java.util.List getColumnKeys()
getColumnKeys
in interface KeyedValues2D
public java.lang.Number getValue(java.lang.Comparable rowKey, java.lang.Comparable columnKey)
getValue
in interface KeyedValues2D
rowKey
- the row key (null
not permitted).columnKey
- the column key (null
not permitted).
null
).
UnknownKeyException
- if either key is not defined in the dataset.public void addValue(java.lang.Number value, java.lang.Comparable rowKey, java.lang.Comparable columnKey)
value
- the value.rowKey
- the row key.columnKey
- the column key.public void addValue(double value, java.lang.Comparable rowKey, java.lang.Comparable columnKey)
value
- the value.rowKey
- the row key.columnKey
- the column key.public void setValue(java.lang.Number value, java.lang.Comparable rowKey, java.lang.Comparable columnKey)
DatasetChangeEvent
to all registered listeners.
value
- the value (null
permitted).rowKey
- the row key (null
not permitted).columnKey
- the column key (null
not permitted).public void setValue(double value, java.lang.Comparable rowKey, java.lang.Comparable columnKey)
DatasetChangeEvent
to all registered listeners.
value
- the value.rowKey
- the row key (null
not permitted).columnKey
- the column key (null
not permitted).public void incrementValue(double value, java.lang.Comparable rowKey, java.lang.Comparable columnKey)
null
, it is treated as if it were 0.0).
value
- the value.rowKey
- the row key (null
not permitted).columnKey
- the column key (null
not permitted).
UnknownKeyException
- if either key is not defined in the dataset.public void removeValue(java.lang.Comparable rowKey, java.lang.Comparable columnKey)
rowKey
- the row key.columnKey
- the column key.public void removeRow(int rowIndex)
rowIndex
- the row index.public void removeRow(java.lang.Comparable rowKey)
rowKey
- the row key.public void removeColumn(int columnIndex)
columnIndex
- the column index.public void removeColumn(java.lang.Comparable columnKey)
columnKey
- the column key.public void clear()
DatasetChangeEvent
to all registered listeners.
public boolean equals(java.lang.Object obj)
obj
- the other object.
public int hashCode()
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