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jfreechart最新源代码

<FONT color="green">197</FONT>            Comparable result = null;<a name="line.197"></a>
<FONT color="green">198</FONT>            if (index &lt; 0 || index &gt;= getItemCount()) {<a name="line.198"></a>
<FONT color="green">199</FONT>                // this includes the case where the underlying dataset is null<a name="line.199"></a>
<FONT color="green">200</FONT>                throw new IndexOutOfBoundsException("Invalid 'index': " + index);<a name="line.200"></a>
<FONT color="green">201</FONT>            }<a name="line.201"></a>
<FONT color="green">202</FONT>            if (this.extract == TableOrder.BY_ROW) {<a name="line.202"></a>
<FONT color="green">203</FONT>                result = this.source.getColumnKey(index);<a name="line.203"></a>
<FONT color="green">204</FONT>            }<a name="line.204"></a>
<FONT color="green">205</FONT>            else if (this.extract == TableOrder.BY_COLUMN) {<a name="line.205"></a>
<FONT color="green">206</FONT>                result = this.source.getRowKey(index);<a name="line.206"></a>
<FONT color="green">207</FONT>            }<a name="line.207"></a>
<FONT color="green">208</FONT>            return result;<a name="line.208"></a>
<FONT color="green">209</FONT>        }<a name="line.209"></a>
<FONT color="green">210</FONT>    <a name="line.210"></a>
<FONT color="green">211</FONT>        /**<a name="line.211"></a>
<FONT color="green">212</FONT>         * Returns the index for a given key, or &lt;code&gt;-1&lt;/code&gt; if there is no<a name="line.212"></a>
<FONT color="green">213</FONT>         * such key.<a name="line.213"></a>
<FONT color="green">214</FONT>         *<a name="line.214"></a>
<FONT color="green">215</FONT>         * @param key  the key.<a name="line.215"></a>
<FONT color="green">216</FONT>         *<a name="line.216"></a>
<FONT color="green">217</FONT>         * @return The index for the key, or &lt;code&gt;-1&lt;/code&gt;.<a name="line.217"></a>
<FONT color="green">218</FONT>         */<a name="line.218"></a>
<FONT color="green">219</FONT>        public int getIndex(Comparable key) {<a name="line.219"></a>
<FONT color="green">220</FONT>            int result = -1;<a name="line.220"></a>
<FONT color="green">221</FONT>            if (this.source != null) {<a name="line.221"></a>
<FONT color="green">222</FONT>                if (this.extract == TableOrder.BY_ROW) {<a name="line.222"></a>
<FONT color="green">223</FONT>                    result = this.source.getColumnIndex(key);<a name="line.223"></a>
<FONT color="green">224</FONT>                }<a name="line.224"></a>
<FONT color="green">225</FONT>                else if (this.extract == TableOrder.BY_COLUMN) {<a name="line.225"></a>
<FONT color="green">226</FONT>                    result = this.source.getRowIndex(key);<a name="line.226"></a>
<FONT color="green">227</FONT>                }<a name="line.227"></a>
<FONT color="green">228</FONT>            }<a name="line.228"></a>
<FONT color="green">229</FONT>            return result;<a name="line.229"></a>
<FONT color="green">230</FONT>        }<a name="line.230"></a>
<FONT color="green">231</FONT>    <a name="line.231"></a>
<FONT color="green">232</FONT>        /**<a name="line.232"></a>
<FONT color="green">233</FONT>         * Returns the keys for the dataset.<a name="line.233"></a>
<FONT color="green">234</FONT>         * &lt;p&gt;<a name="line.234"></a>
<FONT color="green">235</FONT>         * If the underlying dataset is &lt;code&gt;null&lt;/code&gt;, this method returns an<a name="line.235"></a>
<FONT color="green">236</FONT>         * empty list.<a name="line.236"></a>
<FONT color="green">237</FONT>         *<a name="line.237"></a>
<FONT color="green">238</FONT>         * @return The keys.<a name="line.238"></a>
<FONT color="green">239</FONT>         */<a name="line.239"></a>
<FONT color="green">240</FONT>        public List getKeys() {<a name="line.240"></a>
<FONT color="green">241</FONT>            List result = Collections.EMPTY_LIST;<a name="line.241"></a>
<FONT color="green">242</FONT>            if (this.source != null) {<a name="line.242"></a>
<FONT color="green">243</FONT>                if (this.extract == TableOrder.BY_ROW) {<a name="line.243"></a>
<FONT color="green">244</FONT>                    result = this.source.getColumnKeys();<a name="line.244"></a>
<FONT color="green">245</FONT>                }<a name="line.245"></a>
<FONT color="green">246</FONT>                else if (this.extract == TableOrder.BY_COLUMN) {<a name="line.246"></a>
<FONT color="green">247</FONT>                    result = this.source.getRowKeys();<a name="line.247"></a>
<FONT color="green">248</FONT>                }<a name="line.248"></a>
<FONT color="green">249</FONT>            }<a name="line.249"></a>
<FONT color="green">250</FONT>            return result;<a name="line.250"></a>
<FONT color="green">251</FONT>        }<a name="line.251"></a>
<FONT color="green">252</FONT>    <a name="line.252"></a>
<FONT color="green">253</FONT>        /**<a name="line.253"></a>
<FONT color="green">254</FONT>         * Returns the value for a given key.  If the key is not recognised, the <a name="line.254"></a>
<FONT color="green">255</FONT>         * method should return &lt;code&gt;null&lt;/code&gt; (but note that &lt;code&gt;null&lt;/code&gt; <a name="line.255"></a>
<FONT color="green">256</FONT>         * can be associated with a valid key also).<a name="line.256"></a>
<FONT color="green">257</FONT>         *<a name="line.257"></a>
<FONT color="green">258</FONT>         * @param key  the key.<a name="line.258"></a>
<FONT color="green">259</FONT>         *<a name="line.259"></a>
<FONT color="green">260</FONT>         * @return The value (possibly &lt;code&gt;null&lt;/code&gt;).<a name="line.260"></a>
<FONT color="green">261</FONT>         */<a name="line.261"></a>
<FONT color="green">262</FONT>        public Number getValue(Comparable key) {<a name="line.262"></a>
<FONT color="green">263</FONT>            Number result = null;<a name="line.263"></a>
<FONT color="green">264</FONT>            int keyIndex = getIndex(key);<a name="line.264"></a>
<FONT color="green">265</FONT>            if (keyIndex != -1) {<a name="line.265"></a>
<FONT color="green">266</FONT>                if (this.extract == TableOrder.BY_ROW) {<a name="line.266"></a>
<FONT color="green">267</FONT>                    result = this.source.getValue(this.index, keyIndex);<a name="line.267"></a>
<FONT color="green">268</FONT>                }<a name="line.268"></a>
<FONT color="green">269</FONT>                else if (this.extract == TableOrder.BY_COLUMN) {<a name="line.269"></a>
<FONT color="green">270</FONT>                    result = this.source.getValue(keyIndex, this.index);<a name="line.270"></a>
<FONT color="green">271</FONT>                }<a name="line.271"></a>
<FONT color="green">272</FONT>            }<a name="line.272"></a>
<FONT color="green">273</FONT>            return result;<a name="line.273"></a>
<FONT color="green">274</FONT>        }<a name="line.274"></a>
<FONT color="green">275</FONT>        <a name="line.275"></a>
<FONT color="green">276</FONT>        /**<a name="line.276"></a>
<FONT color="green">277</FONT>         * Sends a {@link DatasetChangeEvent} to all registered listeners, with<a name="line.277"></a>
<FONT color="green">278</FONT>         * this (not the underlying) dataset as the source.<a name="line.278"></a>
<FONT color="green">279</FONT>         * <a name="line.279"></a>
<FONT color="green">280</FONT>         * @param event  the event (ignored, a new event with this dataset as the<a name="line.280"></a>
<FONT color="green">281</FONT>         *     source is sent to the listeners).<a name="line.281"></a>
<FONT color="green">282</FONT>         */<a name="line.282"></a>
<FONT color="green">283</FONT>        public void datasetChanged(DatasetChangeEvent event) {<a name="line.283"></a>
<FONT color="green">284</FONT>            fireDatasetChanged();<a name="line.284"></a>
<FONT color="green">285</FONT>        }<a name="line.285"></a>
<FONT color="green">286</FONT>        <a name="line.286"></a>
<FONT color="green">287</FONT>        /**<a name="line.287"></a>
<FONT color="green">288</FONT>         * Tests this dataset for equality with an arbitrary object, returning<a name="line.288"></a>
<FONT color="green">289</FONT>         * &lt;code&gt;true&lt;/code&gt; if &lt;code&gt;obj&lt;/code&gt; is a dataset containing the same<a name="line.289"></a>
<FONT color="green">290</FONT>         * keys and values in the same order as this dataset.<a name="line.290"></a>
<FONT color="green">291</FONT>         * <a name="line.291"></a>
<FONT color="green">292</FONT>         * @param obj  the object to test (&lt;code&gt;null&lt;/code&gt; permitted).<a name="line.292"></a>
<FONT color="green">293</FONT>         * <a name="line.293"></a>
<FONT color="green">294</FONT>         * @return A boolean.<a name="line.294"></a>
<FONT color="green">295</FONT>         */<a name="line.295"></a>
<FONT color="green">296</FONT>        public boolean equals(Object obj) {<a name="line.296"></a>
<FONT color="green">297</FONT>            if (obj == this) {<a name="line.297"></a>
<FONT color="green">298</FONT>                return true;<a name="line.298"></a>
<FONT color="green">299</FONT>            }<a name="line.299"></a>
<FONT color="green">300</FONT>            if (!(obj instanceof PieDataset)) {<a name="line.300"></a>
<FONT color="green">301</FONT>                return false;<a name="line.301"></a>
<FONT color="green">302</FONT>            }<a name="line.302"></a>
<FONT color="green">303</FONT>            PieDataset that = (PieDataset) obj;<a name="line.303"></a>
<FONT color="green">304</FONT>            int count = getItemCount();<a name="line.304"></a>
<FONT color="green">305</FONT>            if (that.getItemCount() != count) {<a name="line.305"></a>
<FONT color="green">306</FONT>                return false;<a name="line.306"></a>
<FONT color="green">307</FONT>            }<a name="line.307"></a>
<FONT color="green">308</FONT>            for (int i = 0; i &lt; count; i++) {<a name="line.308"></a>
<FONT color="green">309</FONT>                Comparable k1 = getKey(i);<a name="line.309"></a>
<FONT color="green">310</FONT>                Comparable k2 = that.getKey(i);<a name="line.310"></a>
<FONT color="green">311</FONT>                if (!k1.equals(k2)) {<a name="line.311"></a>
<FONT color="green">312</FONT>                    return false;<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>                Number v1 = getValue(i);<a name="line.315"></a>
<FONT color="green">316</FONT>                Number v2 = that.getValue(i);<a name="line.316"></a>
<FONT color="green">317</FONT>                if (v1 == null) {<a name="line.317"></a>
<FONT color="green">318</FONT>                    if (v2 != null) {<a name="line.318"></a>
<FONT color="green">319</FONT>                        return false;<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>                else {<a name="line.322"></a>
<FONT color="green">323</FONT>                    if (!v1.equals(v2)) {<a name="line.323"></a>
<FONT color="green">324</FONT>                        return false;<a name="line.324"></a>
<FONT color="green">325</FONT>                    }<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>            return true;<a name="line.328"></a>
<FONT color="green">329</FONT>        }<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>




























































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