| java.lang.Object
 org.jfree.data.general.AbstractDataset
org.jfree.data.category.CategoryToPieDataset
| Method Summary | |
| public void | datasetChanged(DatasetChangeEvent event)
Sends a
DatasetChangeEvent to all registered listeners, with
this (not the underlying) dataset as the source. | | public boolean | equals(Object obj)
Tests this dataset for equality with an arbitrary object, returning
true if obj is a dataset containing the same
keys and values in the same order as this dataset.
Parameters:
obj - the object to test (null permitted). | | public int | getExtractIndex()
Returns the index of the row or column from which to extract the data. | | public TableOrder | getExtractType()
Returns the extract type, which determines whether data is read from
one row or one column of the underlying dataset. | | public int | getIndex(Comparable key)
Returns the index for a given key, or -1 if there is no
such key.
Parameters:
key - the key. | | public int | getItemCount()
Returns the number of items (values) in the collection. | | public Comparable | getKey(int index)
Returns the key at the specified index.
Parameters:
index - the item index (in the range 0 to getItemCount() - 1). | | public List | getKeys()
Returns the keys for the dataset. | | public CategoryDataset | getUnderlyingDataset()
Returns the underlying dataset. | | public Number | getValue(int item)
Returns a value from the dataset.
Parameters:
item - the item index (zero-based). | | public Number | getValue(Comparable key)
Returns the value for a given key. |
| serialVersionUID | | final static long serialVersionUID(Code) | | |
| CategoryToPieDataset | | public CategoryToPieDataset(CategoryDataset source, TableOrder extract, int index)(Code) | | An adaptor class that converts any
CategoryDataset into a
PieDataset , by taking the values from a single row or column.
If source is null, the created dataset will
be empty.
Parameters:
source - the source dataset (null permitted).
Parameters:
extract - extract data from rows or columns? (null not permitted).
Parameters:
index - the row or column index. |
| datasetChanged | | public void datasetChanged(DatasetChangeEvent event)(Code) | | Sends a
DatasetChangeEvent to all registered listeners, with
this (not the underlying) dataset as the source.
Parameters:
event - the event (ignored, a new event with this dataset as thesource is sent to the listeners). |
| equals | | public boolean equals(Object obj)(Code) | | Tests this dataset for equality with an arbitrary object, returning
true if obj is a dataset containing the same
keys and values in the same order as this dataset.
Parameters:
obj - the object to test (null permitted). A boolean. |
| getExtractIndex | | public int getExtractIndex()(Code) | | Returns the index of the row or column from which to extract the data.
The extract index.
since:
1.0.2 |
| getExtractType | | public TableOrder getExtractType()(Code) | | Returns the extract type, which determines whether data is read from
one row or one column of the underlying dataset.
The extract type.
since:
1.0.2 |
| getIndex | | public int getIndex(Comparable key)(Code) | | Returns the index for a given key, or -1 if there is no
such key.
Parameters:
key - the key. The index for the key, or -1. |
| getItemCount | | public int getItemCount()(Code) | | Returns the number of items (values) in the collection. If the
underlying dataset is null, this method returns zero.
The item count. |
| getKey | | public Comparable getKey(int index)(Code) | | Returns the key at the specified index.
Parameters:
index - the item index (in the range 0 to getItemCount() - 1). The key.
throws:
IndexOutOfBoundsException - if index is not in the specified range. |
| getKeys | | public List getKeys()(Code) | | Returns the keys for the dataset.
If the underlying dataset is null, this method returns an
empty list.
The keys. |
| getUnderlyingDataset | | public CategoryDataset getUnderlyingDataset()(Code) | | Returns the underlying dataset.
The underlying dataset (possibly null).
since:
1.0.2 |
| getValue | | public Number getValue(int item)(Code) | | Returns a value from the dataset.
Parameters:
item - the item index (zero-based). The value (possibly null).
throws:
IndexOutOfBoundsException - if item is not in the range 0 to getItemCount() - 1. |
| getValue | | public Number getValue(Comparable key)(Code) | | Returns the value for a given key. If the key is not recognised, the
method should return null (but note that null
can be associated with a valid key also).
Parameters:
key - the key. The value (possibly null). |
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