jdbcxydataset.html

jfreechart1。0。2的api。

<FONT color="green">481</FONT>         * @see Dataset<a name="line.481"></a>
<FONT color="green">482</FONT>         */<a name="line.482"></a>
<FONT color="green">483</FONT>        public int getSeriesCount() {<a name="line.483"></a>
<FONT color="green">484</FONT>            return this.columnNames.length;<a name="line.484"></a>
<FONT color="green">485</FONT>        }<a name="line.485"></a>
<FONT color="green">486</FONT>    <a name="line.486"></a>
<FONT color="green">487</FONT>        /**<a name="line.487"></a>
<FONT color="green">488</FONT>         * Returns the key for the specified series.<a name="line.488"></a>
<FONT color="green">489</FONT>         *<a name="line.489"></a>
<FONT color="green">490</FONT>         * @param seriesIndex  the series (zero-based index).<a name="line.490"></a>
<FONT color="green">491</FONT>         *<a name="line.491"></a>
<FONT color="green">492</FONT>         * @return The seriesName value<a name="line.492"></a>
<FONT color="green">493</FONT>         *<a name="line.493"></a>
<FONT color="green">494</FONT>         * @see XYDataset<a name="line.494"></a>
<FONT color="green">495</FONT>         * @see Dataset<a name="line.495"></a>
<FONT color="green">496</FONT>         */<a name="line.496"></a>
<FONT color="green">497</FONT>        public Comparable getSeriesKey(int seriesIndex) {<a name="line.497"></a>
<FONT color="green">498</FONT>    <a name="line.498"></a>
<FONT color="green">499</FONT>            if ((seriesIndex &lt; this.columnNames.length) <a name="line.499"></a>
<FONT color="green">500</FONT>                    &amp;&amp; (this.columnNames[seriesIndex] != null)) {<a name="line.500"></a>
<FONT color="green">501</FONT>                return this.columnNames[seriesIndex];<a name="line.501"></a>
<FONT color="green">502</FONT>            }<a name="line.502"></a>
<FONT color="green">503</FONT>            else {<a name="line.503"></a>
<FONT color="green">504</FONT>                return "";<a name="line.504"></a>
<FONT color="green">505</FONT>            }<a name="line.505"></a>
<FONT color="green">506</FONT>    <a name="line.506"></a>
<FONT color="green">507</FONT>        }<a name="line.507"></a>
<FONT color="green">508</FONT>    <a name="line.508"></a>
<FONT color="green">509</FONT>        /**<a name="line.509"></a>
<FONT color="green">510</FONT>         * Returns the number of items that should be displayed in the legend.<a name="line.510"></a>
<FONT color="green">511</FONT>         *<a name="line.511"></a>
<FONT color="green">512</FONT>         * @return The legendItemCount value<a name="line.512"></a>
<FONT color="green">513</FONT>         */<a name="line.513"></a>
<FONT color="green">514</FONT>        public int getLegendItemCount() {<a name="line.514"></a>
<FONT color="green">515</FONT>            return getSeriesCount();<a name="line.515"></a>
<FONT color="green">516</FONT>        }<a name="line.516"></a>
<FONT color="green">517</FONT>    <a name="line.517"></a>
<FONT color="green">518</FONT>        /**<a name="line.518"></a>
<FONT color="green">519</FONT>         * Returns the legend item labels.<a name="line.519"></a>
<FONT color="green">520</FONT>         *<a name="line.520"></a>
<FONT color="green">521</FONT>         * @return The legend item labels.<a name="line.521"></a>
<FONT color="green">522</FONT>         */<a name="line.522"></a>
<FONT color="green">523</FONT>        public String[] getLegendItemLabels() {<a name="line.523"></a>
<FONT color="green">524</FONT>            return this.columnNames;<a name="line.524"></a>
<FONT color="green">525</FONT>        }<a name="line.525"></a>
<FONT color="green">526</FONT>    <a name="line.526"></a>
<FONT color="green">527</FONT>        /**<a name="line.527"></a>
<FONT color="green">528</FONT>         * Close the database connection<a name="line.528"></a>
<FONT color="green">529</FONT>         */<a name="line.529"></a>
<FONT color="green">530</FONT>        public void close() {<a name="line.530"></a>
<FONT color="green">531</FONT>    <a name="line.531"></a>
<FONT color="green">532</FONT>            try {<a name="line.532"></a>
<FONT color="green">533</FONT>                this.connection.close();<a name="line.533"></a>
<FONT color="green">534</FONT>            }<a name="line.534"></a>
<FONT color="green">535</FONT>            catch (Exception e) {<a name="line.535"></a>
<FONT color="green">536</FONT>                System.err.println("JdbcXYDataset: swallowing exception.");<a name="line.536"></a>
<FONT color="green">537</FONT>            }<a name="line.537"></a>
<FONT color="green">538</FONT>    <a name="line.538"></a>
<FONT color="green">539</FONT>        }<a name="line.539"></a>
<FONT color="green">540</FONT>    <a name="line.540"></a>
<FONT color="green">541</FONT>        /**<a name="line.541"></a>
<FONT color="green">542</FONT>         * Returns the minimum y-value in the dataset.<a name="line.542"></a>
<FONT color="green">543</FONT>         *<a name="line.543"></a>
<FONT color="green">544</FONT>         * @param includeInterval  a flag that determines whether or not the<a name="line.544"></a>
<FONT color="green">545</FONT>         *                         y-interval is taken into account.<a name="line.545"></a>
<FONT color="green">546</FONT>         * <a name="line.546"></a>
<FONT color="green">547</FONT>         * @return The minimum value.<a name="line.547"></a>
<FONT color="green">548</FONT>         */<a name="line.548"></a>
<FONT color="green">549</FONT>        public double getRangeLowerBound(boolean includeInterval) {<a name="line.549"></a>
<FONT color="green">550</FONT>            return this.minValue;<a name="line.550"></a>
<FONT color="green">551</FONT>        }<a name="line.551"></a>
<FONT color="green">552</FONT>        <a name="line.552"></a>
<FONT color="green">553</FONT>        /**<a name="line.553"></a>
<FONT color="green">554</FONT>         * Returns the maximum y-value in the dataset.<a name="line.554"></a>
<FONT color="green">555</FONT>         *<a name="line.555"></a>
<FONT color="green">556</FONT>         * @param includeInterval  a flag that determines whether or not the<a name="line.556"></a>
<FONT color="green">557</FONT>         *                         y-interval is taken into account.<a name="line.557"></a>
<FONT color="green">558</FONT>         * <a name="line.558"></a>
<FONT color="green">559</FONT>         * @return The maximum value.<a name="line.559"></a>
<FONT color="green">560</FONT>         */<a name="line.560"></a>
<FONT color="green">561</FONT>        public double getRangeUpperBound(boolean includeInterval) {<a name="line.561"></a>
<FONT color="green">562</FONT>            return this.maxValue;<a name="line.562"></a>
<FONT color="green">563</FONT>        }<a name="line.563"></a>
<FONT color="green">564</FONT>    <a name="line.564"></a>
<FONT color="green">565</FONT>        /**<a name="line.565"></a>
<FONT color="green">566</FONT>         * Returns the range of the values in this dataset's range.<a name="line.566"></a>
<FONT color="green">567</FONT>         *<a name="line.567"></a>
<FONT color="green">568</FONT>         * @param includeInterval  a flag that determines whether or not the<a name="line.568"></a>
<FONT color="green">569</FONT>         *                         y-interval is taken into account.<a name="line.569"></a>
<FONT color="green">570</FONT>         * <a name="line.570"></a>
<FONT color="green">571</FONT>         * @return The range.<a name="line.571"></a>
<FONT color="green">572</FONT>         */<a name="line.572"></a>
<FONT color="green">573</FONT>        public Range getRangeBounds(boolean includeInterval) {<a name="line.573"></a>
<FONT color="green">574</FONT>            return new Range(this.minValue, this.maxValue);<a name="line.574"></a>
<FONT color="green">575</FONT>        }<a name="line.575"></a>
<FONT color="green">576</FONT>    <a name="line.576"></a>
<FONT color="green">577</FONT>    }<a name="line.577"></a>




























































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