defaultcategorydataset.html

jfreechart1。0。2的api。

<FONT color="green">290</FONT>         */<a name="line.290"></a>
<FONT color="green">291</FONT>        public void removeColumn(int columnIndex) {<a name="line.291"></a>
<FONT color="green">292</FONT>            this.data.removeColumn(columnIndex);<a name="line.292"></a>
<FONT color="green">293</FONT>            fireDatasetChanged();<a name="line.293"></a>
<FONT color="green">294</FONT>        }<a name="line.294"></a>
<FONT color="green">295</FONT>    <a name="line.295"></a>
<FONT color="green">296</FONT>        /**<a name="line.296"></a>
<FONT color="green">297</FONT>         * Removes a column from the dataset.<a name="line.297"></a>
<FONT color="green">298</FONT>         *<a name="line.298"></a>
<FONT color="green">299</FONT>         * @param columnKey  the column key.<a name="line.299"></a>
<FONT color="green">300</FONT>         */<a name="line.300"></a>
<FONT color="green">301</FONT>        public void removeColumn(Comparable columnKey) {<a name="line.301"></a>
<FONT color="green">302</FONT>            this.data.removeColumn(columnKey);<a name="line.302"></a>
<FONT color="green">303</FONT>            fireDatasetChanged();<a name="line.303"></a>
<FONT color="green">304</FONT>        }<a name="line.304"></a>
<FONT color="green">305</FONT>    <a name="line.305"></a>
<FONT color="green">306</FONT>        /**<a name="line.306"></a>
<FONT color="green">307</FONT>         * Clears all data from the dataset and sends a {@link DatasetChangeEvent} <a name="line.307"></a>
<FONT color="green">308</FONT>         * to all registered listeners.<a name="line.308"></a>
<FONT color="green">309</FONT>         */<a name="line.309"></a>
<FONT color="green">310</FONT>        public void clear() {<a name="line.310"></a>
<FONT color="green">311</FONT>            this.data.clear();<a name="line.311"></a>
<FONT color="green">312</FONT>            fireDatasetChanged();<a name="line.312"></a>
<FONT color="green">313</FONT>        }<a name="line.313"></a>
<FONT color="green">314</FONT>        <a name="line.314"></a>
<FONT color="green">315</FONT>        /**<a name="line.315"></a>
<FONT color="green">316</FONT>         * Tests if this object is equal to another.<a name="line.316"></a>
<FONT color="green">317</FONT>         *<a name="line.317"></a>
<FONT color="green">318</FONT>         * @param obj  the other object.<a name="line.318"></a>
<FONT color="green">319</FONT>         *<a name="line.319"></a>
<FONT color="green">320</FONT>         * @return A boolean.<a name="line.320"></a>
<FONT color="green">321</FONT>         */<a name="line.321"></a>
<FONT color="green">322</FONT>        public boolean equals(Object obj) {<a name="line.322"></a>
<FONT color="green">323</FONT>    <a name="line.323"></a>
<FONT color="green">324</FONT>            if (obj == this) {<a name="line.324"></a>
<FONT color="green">325</FONT>                return true;<a name="line.325"></a>
<FONT color="green">326</FONT>            }<a name="line.326"></a>
<FONT color="green">327</FONT>    <a name="line.327"></a>
<FONT color="green">328</FONT>            if (!(obj instanceof CategoryDataset)) {<a name="line.328"></a>
<FONT color="green">329</FONT>                return false;<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>            CategoryDataset that = (CategoryDataset) obj;<a name="line.332"></a>
<FONT color="green">333</FONT>            if (!getRowKeys().equals(that.getRowKeys())) {<a name="line.333"></a>
<FONT color="green">334</FONT>                return false;<a name="line.334"></a>
<FONT color="green">335</FONT>            }<a name="line.335"></a>
<FONT color="green">336</FONT>    <a name="line.336"></a>
<FONT color="green">337</FONT>            if (!getColumnKeys().equals(that.getColumnKeys())) {<a name="line.337"></a>
<FONT color="green">338</FONT>                return false;<a name="line.338"></a>
<FONT color="green">339</FONT>            }<a name="line.339"></a>
<FONT color="green">340</FONT>    <a name="line.340"></a>
<FONT color="green">341</FONT>            int rowCount = getRowCount();<a name="line.341"></a>
<FONT color="green">342</FONT>            int colCount = getColumnCount();<a name="line.342"></a>
<FONT color="green">343</FONT>            for (int r = 0; r &lt; rowCount; r++) {<a name="line.343"></a>
<FONT color="green">344</FONT>                for (int c = 0; c &lt; colCount; c++) {<a name="line.344"></a>
<FONT color="green">345</FONT>                    Number v1 = getValue(r, c);<a name="line.345"></a>
<FONT color="green">346</FONT>                    Number v2 = that.getValue(r, c);<a name="line.346"></a>
<FONT color="green">347</FONT>                    if (v1 == null) {<a name="line.347"></a>
<FONT color="green">348</FONT>                        if (v2 != null) {<a name="line.348"></a>
<FONT color="green">349</FONT>                            return false;<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>                    else if (!v1.equals(v2)) {<a name="line.352"></a>
<FONT color="green">353</FONT>                        return false;<a name="line.353"></a>
<FONT color="green">354</FONT>                    }<a name="line.354"></a>
<FONT color="green">355</FONT>                }<a name="line.355"></a>
<FONT color="green">356</FONT>            }<a name="line.356"></a>
<FONT color="green">357</FONT>            return true;<a name="line.357"></a>
<FONT color="green">358</FONT>        }<a name="line.358"></a>
<FONT color="green">359</FONT>    <a name="line.359"></a>
<FONT color="green">360</FONT>        /**<a name="line.360"></a>
<FONT color="green">361</FONT>         * Returns a hash code for the dataset.<a name="line.361"></a>
<FONT color="green">362</FONT>         * <a name="line.362"></a>
<FONT color="green">363</FONT>         * @return A hash code.<a name="line.363"></a>
<FONT color="green">364</FONT>         */<a name="line.364"></a>
<FONT color="green">365</FONT>        public int hashCode() {<a name="line.365"></a>
<FONT color="green">366</FONT>            return this.data.hashCode();<a name="line.366"></a>
<FONT color="green">367</FONT>        }<a name="line.367"></a>
<FONT color="green">368</FONT>        <a name="line.368"></a>
<FONT color="green">369</FONT>    }<a name="line.369"></a>




























































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