org.apache.hadoop.hive.ql.udf.xml.UDFXPathLong Maven / Gradle / Ivy
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* to you under the Apache License, Version 2.0 (the
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* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
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package org.apache.hadoop.hive.ql.udf.xml;
import org.apache.hadoop.hive.ql.exec.Description;
import org.apache.hadoop.hive.ql.exec.UDF;
@Description(
name = "xpath_long",
value = "_FUNC_(xml, xpath) - Returns a long value that matches the xpath expression",
extended = "Example:\n"
+ " > SELECT _FUNC_('12','sum(a/b)') FROM src LIMIT 1;\n"
+ " 3")
public class UDFXPathLong extends UDF {
private final UDFXPathUtil xpath = new UDFXPathUtil();
public long evaluate(String xml, String path) {
return xpath.evalNumber(xml, path).longValue();
}
}