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TIEDEMANN / uplug-main-0.3.8 / share / ext / parser / malt / docs / api / src-html / org / maltparser / core / syntaxgraph / feature / ExistsFeature.html 
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<FONT color="green">001</FONT>    package org.maltparser.core.syntaxgraph.feature;<a name="line.1"></a>
<FONT color="green">002</FONT>    <a name="line.2"></a>
<FONT color="green">003</FONT>    import org.maltparser.core.exception.MaltChainedException;<a name="line.3"></a>
<FONT color="green">004</FONT>    import org.maltparser.core.feature.function.AddressFunction;<a name="line.4"></a>
<FONT color="green">005</FONT>    import org.maltparser.core.feature.function.FeatureFunction;<a name="line.5"></a>
<FONT color="green">006</FONT>    import org.maltparser.core.feature.value.FeatureValue;<a name="line.6"></a>
<FONT color="green">007</FONT>    import org.maltparser.core.feature.value.SingleFeatureValue;<a name="line.7"></a>
<FONT color="green">008</FONT>    import org.maltparser.core.io.dataformat.ColumnDescription;<a name="line.8"></a>
<FONT color="green">009</FONT>    import org.maltparser.core.symbol.SymbolTable;<a name="line.9"></a>
<FONT color="green">010</FONT>    import org.maltparser.core.symbol.SymbolTableHandler;<a name="line.10"></a>
<FONT color="green">011</FONT>    import org.maltparser.core.syntaxgraph.SyntaxGraphException;<a name="line.11"></a>
<FONT color="green">012</FONT>    <a name="line.12"></a>
<FONT color="green">013</FONT>    public class ExistsFeature implements FeatureFunction {<a name="line.13"></a>
<FONT color="green">014</FONT>            protected AddressFunction addressFunction;<a name="line.14"></a>
<FONT color="green">015</FONT>            protected SymbolTableHandler tableHandler;<a name="line.15"></a>
<FONT color="green">016</FONT>            protected SymbolTable table;<a name="line.16"></a>
<FONT color="green">017</FONT>            protected SingleFeatureValue featureValue;<a name="line.17"></a>
<FONT color="green">018</FONT>            <a name="line.18"></a>
<FONT color="green">019</FONT>            public ExistsFeature(SymbolTableHandler tableHandler) throws MaltChainedException {<a name="line.19"></a>
<FONT color="green">020</FONT>                    super();<a name="line.20"></a>
<FONT color="green">021</FONT>                    featureValue = new SingleFeatureValue(this);<a name="line.21"></a>
<FONT color="green">022</FONT>                    setTableHandler(tableHandler);<a name="line.22"></a>
<FONT color="green">023</FONT>            }<a name="line.23"></a>
<FONT color="green">024</FONT>            <a name="line.24"></a>
<FONT color="green">025</FONT>            /**<a name="line.25"></a>
<FONT color="green">026</FONT>             * Initialize the exists feature function<a name="line.26"></a>
<FONT color="green">027</FONT>             * <a name="line.27"></a>
<FONT color="green">028</FONT>             * @param arguments an array of arguments with the type returned by getParameterTypes()<a name="line.28"></a>
<FONT color="green">029</FONT>             * @throws MaltChainedException<a name="line.29"></a>
<FONT color="green">030</FONT>             */<a name="line.30"></a>
<FONT color="green">031</FONT>            public void initialize(Object[] arguments) throws MaltChainedException {<a name="line.31"></a>
<FONT color="green">032</FONT>                    if (arguments.length != 1) {<a name="line.32"></a>
<FONT color="green">033</FONT>                            throw new SyntaxGraphException("Could not initialize ExistsFeature: number of arguments are not correct. ");<a name="line.33"></a>
<FONT color="green">034</FONT>                    }<a name="line.34"></a>
<FONT color="green">035</FONT>                    // Checks that the two arguments are address functions<a name="line.35"></a>
<FONT color="green">036</FONT>                    if (!(arguments[0] instanceof AddressFunction)) {<a name="line.36"></a>
<FONT color="green">037</FONT>                            throw new SyntaxGraphException("Could not initialize ExistsFeature: the first argument is not an address function. ");<a name="line.37"></a>
<FONT color="green">038</FONT>                    }<a name="line.38"></a>
<FONT color="green">039</FONT>    <a name="line.39"></a>
<FONT color="green">040</FONT>                    setAddressFunction((AddressFunction)arguments[0]);<a name="line.40"></a>
<FONT color="green">041</FONT>                    <a name="line.41"></a>
<FONT color="green">042</FONT>                    // Creates a symbol table called "EXISTS" using one null value<a name="line.42"></a>
<FONT color="green">043</FONT>                    setSymbolTable(tableHandler.addSymbolTable("EXISTS", ColumnDescription.INPUT, "one"));<a name="line.43"></a>
<FONT color="green">044</FONT>                    <a name="line.44"></a>
<FONT color="green">045</FONT>                    table.addSymbol("TRUE"); // The address exists<a name="line.45"></a>
<FONT color="green">046</FONT>                    table.addSymbol("FALSE"); // The address don't exists<a name="line.46"></a>
<FONT color="green">047</FONT>            }<a name="line.47"></a>
<FONT color="green">048</FONT>            <a name="line.48"></a>
<FONT color="green">049</FONT>            /**<a name="line.49"></a>
<FONT color="green">050</FONT>             * Returns an array of class types used by the feature extraction system to invoke initialize with<a name="line.50"></a>
<FONT color="green">051</FONT>             * correct arguments.<a name="line.51"></a>
<FONT color="green">052</FONT>             * <a name="line.52"></a>
<FONT color="green">053</FONT>             * @return an array of class types<a name="line.53"></a>
<FONT color="green">054</FONT>             */<a name="line.54"></a>
<FONT color="green">055</FONT>            public Class&lt;?&gt;[] getParameterTypes() {<a name="line.55"></a>
<FONT color="green">056</FONT>                    Class&lt;?&gt;[] paramTypes = { org.maltparser.core.feature.function.AddressFunction.class };<a name="line.56"></a>
<FONT color="green">057</FONT>                    return paramTypes; <a name="line.57"></a>
<FONT color="green">058</FONT>            }<a name="line.58"></a>
<FONT color="green">059</FONT>            /**<a name="line.59"></a>
<FONT color="green">060</FONT>             * Returns the string representation of the integer &lt;code&gt;code&lt;/code&gt; according to the exists feature function. <a name="line.60"></a>
<FONT color="green">061</FONT>             * <a name="line.61"></a>
<FONT color="green">062</FONT>             * @param code the integer representation of the symbol<a name="line.62"></a>
<FONT color="green">063</FONT>             * @return the string representation of the integer &lt;code&gt;code&lt;/code&gt; according to the exists feature function.<a name="line.63"></a>
<FONT color="green">064</FONT>             * @throws MaltChainedException<a name="line.64"></a>
<FONT color="green">065</FONT>             */<a name="line.65"></a>
<FONT color="green">066</FONT>            public String getSymbol(int code) throws MaltChainedException {<a name="line.66"></a>
<FONT color="green">067</FONT>                    return table.getSymbolCodeToString(code);<a name="line.67"></a>
<FONT color="green">068</FONT>            }<a name="line.68"></a>
<FONT color="green">069</FONT>            <a name="line.69"></a>
<FONT color="green">070</FONT>            /**<a name="line.70"></a>
<FONT color="green">071</FONT>             * Returns the integer representation of the string &lt;code&gt;symbol&lt;/code&gt; according to the exists feature function.<a name="line.71"></a>
<FONT color="green">072</FONT>             * <a name="line.72"></a>
<FONT color="green">073</FONT>             * @param symbol the string representation of the symbol<a name="line.73"></a>
<FONT color="green">074</FONT>             * @return the integer representation of the string &lt;code&gt;symbol&lt;/code&gt; according to the exists feature function.<a name="line.74"></a>
<FONT color="green">075</FONT>             * @throws MaltChainedException<a name="line.75"></a>
<FONT color="green">076</FONT>             */<a name="line.76"></a>
<FONT color="green">077</FONT>            public int getCode(String symbol) throws MaltChainedException {<a name="line.77"></a>
<FONT color="green">078</FONT>                    return table.getSymbolStringToCode(symbol);<a name="line.78"></a>
<FONT color="green">079</FONT>            }<a name="line.79"></a>
<FONT color="green">080</FONT>            <a name="line.80"></a>
<FONT color="green">081</FONT>            /**<a name="line.81"></a>
<FONT color="green">082</FONT>             * Cause the exists feature function to update the cardinality of the feature value.<a name="line.82"></a>
<FONT color="green">083</FONT>             * <a name="line.83"></a>
<FONT color="green">084</FONT>             * @throws MaltChainedException<a name="line.84"></a>
<FONT color="green">085</FONT>             */<a name="line.85"></a>
<FONT color="green">086</FONT>            public void updateCardinality() {<a name="line.86"></a>
<FONT color="green">087</FONT>                    featureValue.setCardinality(table.getValueCounter()); <a name="line.87"></a>
<FONT color="green">088</FONT>            }<a name="line.88"></a>
<FONT color="green">089</FONT>            <a name="line.89"></a>
<FONT color="green">090</FONT>            /**<a name="line.90"></a>
<FONT color="green">091</FONT>             * Cause the feature function to update the feature value.<a name="line.91"></a>
<FONT color="green">092</FONT>             * <a name="line.92"></a>
<FONT color="green">093</FONT>             * @throws MaltChainedException<a name="line.93"></a>
<FONT color="green">094</FONT>             */<a name="line.94"></a>
<FONT color="green">095</FONT>            public void update() throws MaltChainedException {<a name="line.95"></a>
<FONT color="green">096</FONT>                    if (addressFunction.getAddressValue().getAddress() != null) {<a name="line.96"></a>
<FONT color="green">097</FONT>                            featureValue.setCode(table.getSymbolStringToCode("TRUE"));<a name="line.97"></a>
<FONT color="green">098</FONT>                            featureValue.setSymbol("TRUE");<a name="line.98"></a>
<FONT color="green">099</FONT>                            featureValue.setKnown(true);<a name="line.99"></a>
<FONT color="green">100</FONT>                            featureValue.setNullValue(false);<a name="line.100"></a>
<FONT color="green">101</FONT>                    } else {<a name="line.101"></a>
<FONT color="green">102</FONT>                            featureValue.setCode(table.getSymbolStringToCode("FALSE"));<a name="line.102"></a>
<FONT color="green">103</FONT>                            featureValue.setSymbol("FALSE");<a name="line.103"></a>
<FONT color="green">104</FONT>                            featureValue.setKnown(true);<a name="line.104"></a>
<FONT color="green">105</FONT>                            featureValue.setNullValue(false);<a name="line.105"></a>
<FONT color="green">106</FONT>                    }<a name="line.106"></a>
<FONT color="green">107</FONT>            }<a name="line.107"></a>
<FONT color="green">108</FONT>            <a name="line.108"></a>
<FONT color="green">109</FONT>            /**<a name="line.109"></a>
<FONT color="green">110</FONT>             * Returns the feature value<a name="line.110"></a>
<FONT color="green">111</FONT>             * <a name="line.111"></a>
<FONT color="green">112</FONT>             * @return the feature value<a name="line.112"></a>
<FONT color="green">113</FONT>             */<a name="line.113"></a>
<FONT color="green">114</FONT>            public FeatureValue getFeatureValue() {<a name="line.114"></a>
<FONT color="green">115</FONT>                    return featureValue;<a name="line.115"></a>
<FONT color="green">116</FONT>            }<a name="line.116"></a>
<FONT color="green">117</FONT>            <a name="line.117"></a>
<FONT color="green">118</FONT>            /**<a name="line.118"></a>
<FONT color="green">119</FONT>             * Returns the symbol table used by the exists feature function<a name="line.119"></a>
<FONT color="green">120</FONT>             * <a name="line.120"></a>
<FONT color="green">121</FONT>             * @return the symbol table used by the exists feature function<a name="line.121"></a>
<FONT color="green">122</FONT>             */<a name="line.122"></a>
<FONT color="green">123</FONT>            public SymbolTable getSymbolTable() {<a name="line.123"></a>
<FONT color="green">124</FONT>                    return table;<a name="line.124"></a>
<FONT color="green">125</FONT>            }<a name="line.125"></a>
<FONT color="green">126</FONT>            <a name="line.126"></a>
<FONT color="green">127</FONT>            /**<a name="line.127"></a>
<FONT color="green">128</FONT>             * Returns the address function <a name="line.128"></a>
<FONT color="green">129</FONT>             * <a name="line.129"></a>
<FONT color="green">130</FONT>             * @return the address function <a name="line.130"></a>
<FONT color="green">131</FONT>             */<a name="line.131"></a>
<FONT color="green">132</FONT>            public AddressFunction getAddressFunction() {<a name="line.132"></a>
<FONT color="green">133</FONT>                    return addressFunction;<a name="line.133"></a>
<FONT color="green">134</FONT>            }<a name="line.134"></a>
<FONT color="green">135</FONT>    <a name="line.135"></a>
<FONT color="green">136</FONT>    <a name="line.136"></a>
<FONT color="green">137</FONT>            /**<a name="line.137"></a>
<FONT color="green">138</FONT>             * Sets the address function <a name="line.138"></a>
<FONT color="green">139</FONT>             * <a name="line.139"></a>
<FONT color="green">140</FONT>             * @param addressFunction a address function <a name="line.140"></a>
<FONT color="green">141</FONT>             */<a name="line.141"></a>
<FONT color="green">142</FONT>            public void setAddressFunction(AddressFunction addressFunction) {<a name="line.142"></a>
<FONT color="green">143</FONT>                    this.addressFunction = addressFunction;<a name="line.143"></a>
<FONT color="green">144</FONT>            }<a name="line.144"></a>
<FONT color="green">145</FONT>            <a name="line.145"></a>
<FONT color="green">146</FONT>            /**<a name="line.146"></a>
<FONT color="green">147</FONT>             * Returns symbol table handler<a name="line.147"></a>
<FONT color="green">148</FONT>             * <a name="line.148"></a>
<FONT color="green">149</FONT>             * @return a symbol table handler<a name="line.149"></a>
<FONT color="green">150</FONT>             */<a name="line.150"></a>
<FONT color="green">151</FONT>            public SymbolTableHandler getTableHandler() {<a name="line.151"></a>
<FONT color="green">152</FONT>                    return tableHandler;<a name="line.152"></a>
<FONT color="green">153</FONT>            }<a name="line.153"></a>
<FONT color="green">154</FONT>            /**<a name="line.154"></a>
<FONT color="green">155</FONT>             * Sets the symbol table handler<a name="line.155"></a>
<FONT color="green">156</FONT>             * <a name="line.156"></a>
<FONT color="green">157</FONT>             * @param tableHandler a symbol table handler<a name="line.157"></a>
<FONT color="green">158</FONT>             */<a name="line.158"></a>
<FONT color="green">159</FONT>            public void setTableHandler(SymbolTableHandler tableHandler) {<a name="line.159"></a>
<FONT color="green">160</FONT>                    this.tableHandler = tableHandler;<a name="line.160"></a>
<FONT color="green">161</FONT>            }<a name="line.161"></a>
<FONT color="green">162</FONT>    <a name="line.162"></a>
<FONT color="green">163</FONT>            /**<a name="line.163"></a>
<FONT color="green">164</FONT>             * Sets the symbol table used by the exists feature function<a name="line.164"></a>
<FONT color="green">165</FONT>             * <a name="line.165"></a>
<FONT color="green">166</FONT>             * @param table<a name="line.166"></a>
<FONT color="green">167</FONT>             */<a name="line.167"></a>
<FONT color="green">168</FONT>            public void setSymbolTable(SymbolTable table) {<a name="line.168"></a>
<FONT color="green">169</FONT>                    this.table = table;<a name="line.169"></a>
<FONT color="green">170</FONT>            }<a name="line.170"></a>
<FONT color="green">171</FONT>            <a name="line.171"></a>
<FONT color="green">172</FONT>            public boolean equals(Object obj) {<a name="line.172"></a>
<FONT color="green">173</FONT>                    if (this == obj)<a name="line.173"></a>
<FONT color="green">174</FONT>                            return true;<a name="line.174"></a>
<FONT color="green">175</FONT>                    if (obj == null)<a name="line.175"></a>
<FONT color="green">176</FONT>                            return false;<a name="line.176"></a>
<FONT color="green">177</FONT>                    if (getClass() != obj.getClass())<a name="line.177"></a>
<FONT color="green">178</FONT>                            return false;<a name="line.178"></a>
<FONT color="green">179</FONT>                    return obj.toString().equals(this.toString());<a name="line.179"></a>
<FONT color="green">180</FONT>            }<a name="line.180"></a>
<FONT color="green">181</FONT>            <a name="line.181"></a>
<FONT color="green">182</FONT>            public int hashCode() {<a name="line.182"></a>
<FONT color="green">183</FONT>                    return 217 + (null == toString() ? 0 : toString().hashCode());<a name="line.183"></a>
<FONT color="green">184</FONT>            }<a name="line.184"></a>
<FONT color="green">185</FONT>            <a name="line.185"></a>
<FONT color="green">186</FONT>            public String toString() {<a name="line.186"></a>
<FONT color="green">187</FONT>                    final StringBuilder sb = new StringBuilder();<a name="line.187"></a>
<FONT color="green">188</FONT>                    sb.append("Exists(");<a name="line.188"></a>
<FONT color="green">189</FONT>                    sb.append(addressFunction.toString());<a name="line.189"></a>
<FONT color="green">190</FONT>                    sb.append(')');<a name="line.190"></a>
<FONT color="green">191</FONT>                    return sb.toString();<a name="line.191"></a>
<FONT color="green">192</FONT>            }<a name="line.192"></a>
<FONT color="green">193</FONT>    }<a name="line.193"></a>




























































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