defaultkeyedvaluedataset.html

jfreechart1。0。2的api。

<FONT color="green">130</FONT>    <a name="line.130"></a>
<FONT color="green">131</FONT>        /**<a name="line.131"></a>
<FONT color="green">132</FONT>         * Sets the value for the dataset and sends a {@link DatasetChangeEvent} to <a name="line.132"></a>
<FONT color="green">133</FONT>         * all registered listeners.<a name="line.133"></a>
<FONT color="green">134</FONT>         *<a name="line.134"></a>
<FONT color="green">135</FONT>         * @param key  the key.<a name="line.135"></a>
<FONT color="green">136</FONT>         * @param value  the value (&lt;code&gt;null&lt;/code&gt; permitted).<a name="line.136"></a>
<FONT color="green">137</FONT>         */<a name="line.137"></a>
<FONT color="green">138</FONT>        public void setValue(Comparable key, Number value) {<a name="line.138"></a>
<FONT color="green">139</FONT>            this.data = new DefaultKeyedValue(key, value);<a name="line.139"></a>
<FONT color="green">140</FONT>            notifyListeners(new DatasetChangeEvent(this, this));<a name="line.140"></a>
<FONT color="green">141</FONT>        }<a name="line.141"></a>
<FONT color="green">142</FONT>    <a name="line.142"></a>
<FONT color="green">143</FONT>        /**<a name="line.143"></a>
<FONT color="green">144</FONT>         * Tests this dataset for equality with an arbitrary object.<a name="line.144"></a>
<FONT color="green">145</FONT>         *<a name="line.145"></a>
<FONT color="green">146</FONT>         * @param obj  the object.<a name="line.146"></a>
<FONT color="green">147</FONT>         *<a name="line.147"></a>
<FONT color="green">148</FONT>         * @return A boolean.<a name="line.148"></a>
<FONT color="green">149</FONT>         */<a name="line.149"></a>
<FONT color="green">150</FONT>        public boolean equals(Object obj) {<a name="line.150"></a>
<FONT color="green">151</FONT>    <a name="line.151"></a>
<FONT color="green">152</FONT>            if (obj == this) {<a name="line.152"></a>
<FONT color="green">153</FONT>                return true;<a name="line.153"></a>
<FONT color="green">154</FONT>            }<a name="line.154"></a>
<FONT color="green">155</FONT>            if (!(obj instanceof KeyedValueDataset)) {<a name="line.155"></a>
<FONT color="green">156</FONT>                return false;<a name="line.156"></a>
<FONT color="green">157</FONT>            }<a name="line.157"></a>
<FONT color="green">158</FONT>            KeyedValueDataset that = (KeyedValueDataset) obj;<a name="line.158"></a>
<FONT color="green">159</FONT>            if (this.data == null) {<a name="line.159"></a>
<FONT color="green">160</FONT>                if (that.getKey() != null || that.getValue() != null) {<a name="line.160"></a>
<FONT color="green">161</FONT>                    return false;<a name="line.161"></a>
<FONT color="green">162</FONT>                }<a name="line.162"></a>
<FONT color="green">163</FONT>                return true;<a name="line.163"></a>
<FONT color="green">164</FONT>            }<a name="line.164"></a>
<FONT color="green">165</FONT>            if (!ObjectUtilities.equal(this.data.getKey(), that.getKey())) {<a name="line.165"></a>
<FONT color="green">166</FONT>                return false;<a name="line.166"></a>
<FONT color="green">167</FONT>            }<a name="line.167"></a>
<FONT color="green">168</FONT>            if (!ObjectUtilities.equal(this.data.getValue(), that.getValue())) {<a name="line.168"></a>
<FONT color="green">169</FONT>                return false;<a name="line.169"></a>
<FONT color="green">170</FONT>            }<a name="line.170"></a>
<FONT color="green">171</FONT>            return true;<a name="line.171"></a>
<FONT color="green">172</FONT>        }<a name="line.172"></a>
<FONT color="green">173</FONT>    <a name="line.173"></a>
<FONT color="green">174</FONT>        /**<a name="line.174"></a>
<FONT color="green">175</FONT>         * Returns a hash code.<a name="line.175"></a>
<FONT color="green">176</FONT>         * <a name="line.176"></a>
<FONT color="green">177</FONT>         * @return A hash code.<a name="line.177"></a>
<FONT color="green">178</FONT>         */<a name="line.178"></a>
<FONT color="green">179</FONT>        public int hashCode() {<a name="line.179"></a>
<FONT color="green">180</FONT>            return (this.data != null ? this.data.hashCode() : 0);<a name="line.180"></a>
<FONT color="green">181</FONT>        }<a name="line.181"></a>
<FONT color="green">182</FONT>    <a name="line.182"></a>
<FONT color="green">183</FONT>        /**<a name="line.183"></a>
<FONT color="green">184</FONT>         * Creates a clone of the dataset.<a name="line.184"></a>
<FONT color="green">185</FONT>         * <a name="line.185"></a>
<FONT color="green">186</FONT>         * @return A clone.<a name="line.186"></a>
<FONT color="green">187</FONT>         * <a name="line.187"></a>
<FONT color="green">188</FONT>         * @throws CloneNotSupportedException This class will not throw this <a name="line.188"></a>
<FONT color="green">189</FONT>         *         exception, but subclasses (if any) might.<a name="line.189"></a>
<FONT color="green">190</FONT>         */<a name="line.190"></a>
<FONT color="green">191</FONT>        public Object clone() throws CloneNotSupportedException {<a name="line.191"></a>
<FONT color="green">192</FONT>            DefaultKeyedValueDataset clone <a name="line.192"></a>
<FONT color="green">193</FONT>                = (DefaultKeyedValueDataset) super.clone();<a name="line.193"></a>
<FONT color="green">194</FONT>            return clone;    <a name="line.194"></a>
<FONT color="green">195</FONT>        }<a name="line.195"></a>
<FONT color="green">196</FONT>        <a name="line.196"></a>
<FONT color="green">197</FONT>    }<a name="line.197"></a>




























































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