defaultintervalcategorydataset.html

jfreechart1。0。2的api。

<FONT color="green">306</FONT>         * @return A list of the series in the dataset.<a name="line.306"></a>
<FONT color="green">307</FONT>         */<a name="line.307"></a>
<FONT color="green">308</FONT>        public List getSeries() {<a name="line.308"></a>
<FONT color="green">309</FONT>    <a name="line.309"></a>
<FONT color="green">310</FONT>            // the CategoryDataset interface expects a list of series, but<a name="line.310"></a>
<FONT color="green">311</FONT>            // we've stored them in an array...<a name="line.311"></a>
<FONT color="green">312</FONT>            if (this.seriesKeys == null) {<a name="line.312"></a>
<FONT color="green">313</FONT>                return new java.util.ArrayList();<a name="line.313"></a>
<FONT color="green">314</FONT>            }<a name="line.314"></a>
<FONT color="green">315</FONT>            else {<a name="line.315"></a>
<FONT color="green">316</FONT>                return Collections.unmodifiableList(Arrays.asList(this.seriesKeys));<a name="line.316"></a>
<FONT color="green">317</FONT>            }<a name="line.317"></a>
<FONT color="green">318</FONT>    <a name="line.318"></a>
<FONT color="green">319</FONT>        }<a name="line.319"></a>
<FONT color="green">320</FONT>    <a name="line.320"></a>
<FONT color="green">321</FONT>        /**<a name="line.321"></a>
<FONT color="green">322</FONT>         * Returns a list of the categories in the dataset.<a name="line.322"></a>
<FONT color="green">323</FONT>         * &lt;P&gt;<a name="line.323"></a>
<FONT color="green">324</FONT>         * Supports the CategoryDataset interface.<a name="line.324"></a>
<FONT color="green">325</FONT>         *<a name="line.325"></a>
<FONT color="green">326</FONT>         * @return A list of the categories in the dataset.<a name="line.326"></a>
<FONT color="green">327</FONT>         */<a name="line.327"></a>
<FONT color="green">328</FONT>        public List getCategories() {<a name="line.328"></a>
<FONT color="green">329</FONT>            return getColumnKeys();<a name="line.329"></a>
<FONT color="green">330</FONT>        }<a name="line.330"></a>
<FONT color="green">331</FONT>    <a name="line.331"></a>
<FONT color="green">332</FONT>        /**<a name="line.332"></a>
<FONT color="green">333</FONT>         * Returns a list of the categories in the dataset.<a name="line.333"></a>
<FONT color="green">334</FONT>         * &lt;P&gt;<a name="line.334"></a>
<FONT color="green">335</FONT>         * Supports the CategoryDataset interface.<a name="line.335"></a>
<FONT color="green">336</FONT>         *<a name="line.336"></a>
<FONT color="green">337</FONT>         * @return A list of the categories in the dataset.<a name="line.337"></a>
<FONT color="green">338</FONT>         */<a name="line.338"></a>
<FONT color="green">339</FONT>        public List getColumnKeys() {<a name="line.339"></a>
<FONT color="green">340</FONT>    <a name="line.340"></a>
<FONT color="green">341</FONT>            // the CategoryDataset interface expects a list of categories, but<a name="line.341"></a>
<FONT color="green">342</FONT>            // we've stored them in an array...<a name="line.342"></a>
<FONT color="green">343</FONT>            if (this.categoryKeys == null) {<a name="line.343"></a>
<FONT color="green">344</FONT>                return new ArrayList();<a name="line.344"></a>
<FONT color="green">345</FONT>            }<a name="line.345"></a>
<FONT color="green">346</FONT>            else {<a name="line.346"></a>
<FONT color="green">347</FONT>                return Collections.unmodifiableList(<a name="line.347"></a>
<FONT color="green">348</FONT>                    Arrays.asList(this.categoryKeys)<a name="line.348"></a>
<FONT color="green">349</FONT>                );<a name="line.349"></a>
<FONT color="green">350</FONT>            }<a name="line.350"></a>
<FONT color="green">351</FONT>    <a name="line.351"></a>
<FONT color="green">352</FONT>        }<a name="line.352"></a>
<FONT color="green">353</FONT>    <a name="line.353"></a>
<FONT color="green">354</FONT>        /**<a name="line.354"></a>
<FONT color="green">355</FONT>         * Sets the categories for the dataset.<a name="line.355"></a>
<FONT color="green">356</FONT>         *<a name="line.356"></a>
<FONT color="green">357</FONT>         * @param categoryKeys  an array of objects representing the categories in <a name="line.357"></a>
<FONT color="green">358</FONT>         *                      the dataset.<a name="line.358"></a>
<FONT color="green">359</FONT>         */<a name="line.359"></a>
<FONT color="green">360</FONT>        public void setCategoryKeys(Comparable[] categoryKeys) {<a name="line.360"></a>
<FONT color="green">361</FONT>    <a name="line.361"></a>
<FONT color="green">362</FONT>            // check arguments...<a name="line.362"></a>
<FONT color="green">363</FONT>            if (categoryKeys == null) {<a name="line.363"></a>
<FONT color="green">364</FONT>                throw new IllegalArgumentException("Null 'categoryKeys' argument.");<a name="line.364"></a>
<FONT color="green">365</FONT>            }<a name="line.365"></a>
<FONT color="green">366</FONT>    <a name="line.366"></a>
<FONT color="green">367</FONT>            if (categoryKeys.length != this.startData[0].length) {<a name="line.367"></a>
<FONT color="green">368</FONT>                throw new IllegalArgumentException(<a name="line.368"></a>
<FONT color="green">369</FONT>                    "The number of categories does not match the data."<a name="line.369"></a>
<FONT color="green">370</FONT>                );<a name="line.370"></a>
<FONT color="green">371</FONT>            }<a name="line.371"></a>
<FONT color="green">372</FONT>    <a name="line.372"></a>
<FONT color="green">373</FONT>            for (int i = 0; i &lt; categoryKeys.length; i++) {<a name="line.373"></a>
<FONT color="green">374</FONT>                if (categoryKeys[i] == null) {<a name="line.374"></a>
<FONT color="green">375</FONT>                    throw new IllegalArgumentException(<a name="line.375"></a>
<FONT color="green">376</FONT>                        "DefaultIntervalCategoryDataset.setCategoryKeys(): "<a name="line.376"></a>
<FONT color="green">377</FONT>                        + "null category not permitted.");<a name="line.377"></a>
<FONT color="green">378</FONT>                }<a name="line.378"></a>
<FONT color="green">379</FONT>            }<a name="line.379"></a>
<FONT color="green">380</FONT>    <a name="line.380"></a>
<FONT color="green">381</FONT>            // make the change...<a name="line.381"></a>
<FONT color="green">382</FONT>            this.categoryKeys = categoryKeys;<a name="line.382"></a>
<FONT color="green">383</FONT>            fireDatasetChanged();<a name="line.383"></a>
<FONT color="green">384</FONT>    <a name="line.384"></a>
<FONT color="green">385</FONT>        }<a name="line.385"></a>
<FONT color="green">386</FONT>    <a name="line.386"></a>
<FONT color="green">387</FONT>        /**<a name="line.387"></a>
<FONT color="green">388</FONT>         * Returns the data value for one category in a series.<a name="line.388"></a>
<FONT color="green">389</FONT>         * &lt;P&gt;<a name="line.389"></a>
<FONT color="green">390</FONT>         * This method is part of the CategoryDataset interface.  Not particularly<a name="line.390"></a>
<FONT color="green">391</FONT>         * meaningful for this class...returns the end value.<a name="line.391"></a>
<FONT color="green">392</FONT>         * @param series    The required series (zero based index).<a name="line.392"></a>
<FONT color="green">393</FONT>         * @param category  The required category.<a name="line.393"></a>
<FONT color="green">394</FONT>         * @return The data value for one category in a series (null possible).<a name="line.394"></a>
<FONT color="green">395</FONT>         */<a name="line.395"></a>
<FONT color="green">396</FONT>        public Number getValue(Comparable series, Comparable category) {<a name="line.396"></a>
<FONT color="green">397</FONT>            int seriesIndex = getSeriesIndex(series);<a name="line.397"></a>
<FONT color="green">398</FONT>            int itemIndex = getColumnIndex(category);<a name="line.398"></a>
<FONT color="green">399</FONT>            return getValue(seriesIndex, itemIndex);<a name="line.399"></a>
<FONT color="green">400</FONT>        }<a name="line.400"></a>
<FONT color="green">401</FONT>    <a name="line.401"></a>
<FONT color="green">402</FONT>        /**<a name="line.402"></a>
<FONT color="green">403</FONT>         * Returns the data value for one category in a series.<a name="line.403"></a>
<FONT color="green">404</FONT>         * &lt;P&gt;<a name="line.404"></a>
<FONT color="green">405</FONT>         * This method is part of the CategoryDataset interface.  Not particularly<a name="line.405"></a>
<FONT color="green">406</FONT>         * meaningful for this class...returns the end value.<a name="line.406"></a>
<FONT color="green">407</FONT>         *<a name="line.407"></a>
<FONT color="green">408</FONT>         * @param series  the required series (zero based index).<a name="line.408"></a>
<FONT color="green">409</FONT>         * @param category  the required category.<a name="line.409"></a>
<FONT color="green">410</FONT>         *<a name="line.410"></a>
<FONT color="green">411</FONT>         * @return The data value for one category in a series (null possible).<a name="line.411"></a>
<FONT color="green">412</FONT>         */<a name="line.412"></a>
<FONT color="green">413</FONT>        public Number getValue(int series, int category) {<a name="line.413"></a>
<FONT color="green">414</FONT>            return getEndValue(series, category);<a name="line.414"></a>
<FONT color="green">415</FONT>        }<a name="line.415"></a>
<FONT color="green">416</FONT>    <a name="line.416"></a>
<FONT color="green">417</FONT>        /**<a name="line.417"></a>
<FONT color="green">418</FONT>         * Returns the start data value for one category in a series.<a name="line.418"></a>
<FONT color="green">419</FONT>         *<a name="line.419"></a>
<FONT color="green">420</FONT>         * @param series  the required series.<a name="line.420"></a>
<FONT color="green">421</FONT>         * @param category  the required category.<a name="line.421"></a>
<FONT color="green">422</FONT>         *<a name="line.422"></a>
<FONT color="green">423</FONT>         * @return The start data value for one category in a series <a name="line.423"></a>
<FONT color="green">424</FONT>         *         (possibly &lt;code&gt;null&lt;/code&gt;).<a name="line.424"></a>
<FONT color="green">425</FONT>         */<a name="line.425"></a>
<FONT color="green">426</FONT>        public Number getStartValue(Comparable series, Comparable category) {<a name="line.426"></a>
<FONT color="green">427</FONT>            int seriesIndex = getSeriesIndex(series);<a name="line.427"></a>
<FONT color="green">428</FONT>            int itemIndex = getColumnIndex(category);<a name="line.428"></a>
<FONT color="green">429</FONT>            return getStartValue(seriesIndex, itemIndex);<a name="line.429"></a>
<FONT color="green">430</FONT>        }<a name="line.430"></a>
<FONT color="green">431</FONT>    <a name="line.431"></a>
<FONT color="green">432</FONT>        /**<a name="line.432"></a>
<FONT color="green">433</FONT>         * Returns the start data value for one category in a series.<a name="line.433"></a>
<FONT color="green">434</FONT>         *<a name="line.434"></a>
<FONT color="green">435</FONT>         * @param series  the required series (zero based index).<a name="line.435"></a>
<FONT color="green">436</FONT>         * @param category  the required category.<a name="line.436"></a>
<FONT color="green">437</FONT>         *<a name="line.437"></a>
<FONT color="green">438</FONT>         * @return The start data value for one category in a series <a name="line.438"></a>
<FONT color="green">439</FONT>         *         (possibly &lt;code&gt;null&lt;/code&gt;).<a name="line.439"></a>
<FONT color="green">440</FONT>         */<a name="line.440"></a>
<FONT color="green">441</FONT>        public Number getStartValue(int series, int category) {<a name="line.441"></a>
<FONT color="green">442</FONT>    <a name="line.442"></a>
<FONT color="green">443</FONT>            // check arguments...<a name="line.443"></a>
<FONT color="green">444</FONT>            if ((series &lt; 0) || (series &gt;= getSeriesCount())) {<a name="line.444"></a>
<FONT color="green">445</FONT>                throw new IllegalArgumentException(<a name="line.445"></a>
<FONT color="green">446</FONT>                    "DefaultIntervalCategoryDataset.getValue(): "<a name="line.446"></a>
<FONT color="green">447</FONT>                    + "series index out of range.");<a name="line.447"></a>
<FONT color="green">448</FONT>            }<a name="line.448"></a>
<FONT color="green">449</FONT>    <a name="line.449"></a>
<FONT color="green">450</FONT>            if ((category &lt; 0) || (category &gt;= getCategoryCount())) {<a name="line.450"></a>
<FONT color="green">451</FONT>                throw new IllegalArgumentException(<a name="line.451"></a>
<FONT color="green">452</FONT>                    "DefaultIntervalCategoryDataset.getValue(): "<a name="line.452"></a>
<FONT color="green">453</FONT>                    + "category index out of range.");<a name="line.453"></a>
<FONT color="green">454</FONT>            }<a name="line.454"></a>
<FONT color="green">455</FONT>    <a name="line.455"></a>
<FONT color="green">456</FONT>            // fetch the value...<a name="line.456"></a>
<FONT color="green">457</FONT>            return this.startData[series][category];<a name="line.457"></a>
<FONT color="green">458</FONT>    <a name="line.458"></a>
<FONT color="green">459</FONT>        }<a name="line.459"></a>