com.github.aaronshan.functions.map

类 UDFMapElementAt

java.lang.Object

org.apache.hadoop.hive.ql.udf.generic.GenericUDF

com.github.aaronshan.functions.map.UDFMapElementAt

所有已实现的接口:

Closeable, AutoCloseable

public class UDFMapElementAt
extends org.apache.hadoop.hive.ql.udf.generic.GenericUDF

作者:

ruifeng.shan date: 2016-07-27 time: 15:38

嵌套类概要

从类继承的嵌套类/接口 org.apache.hadoop.hive.ql.udf.generic.GenericUDF

org.apache.hadoop.hive.ql.udf.generic.GenericUDF.DeferredJavaObject, org.apache.hadoop.hive.ql.udf.generic.GenericUDF.DeferredObject

构造器概要

构造器

构造器和说明
UDFMapElementAt()

方法概要

限定符和类型	方法和说明
Object	evaluate(org.apache.hadoop.hive.ql.udf.generic.GenericUDF.DeferredObject[] arguments)
String	getDisplayString(String[] strings)
org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector	initialize(org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector[] arguments)

从类继承的方法 org.apache.hadoop.hive.ql.udf.generic.GenericUDF

close, configure, getRequiredFiles, getRequiredJars, initializeAndFoldConstants

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

UDFMapElementAt

public UDFMapElementAt()

方法详细资料

initialize

public org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector initialize(org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector[] arguments)
                                                                         throws org.apache.hadoop.hive.ql.exec.UDFArgumentException

指定者:

initialize 在类中 org.apache.hadoop.hive.ql.udf.generic.GenericUDF

抛出:

org.apache.hadoop.hive.ql.exec.UDFArgumentException

evaluate

public Object evaluate(org.apache.hadoop.hive.ql.udf.generic.GenericUDF.DeferredObject[] arguments)
                throws org.apache.hadoop.hive.ql.metadata.HiveException

指定者:

evaluate 在类中 org.apache.hadoop.hive.ql.udf.generic.GenericUDF

抛出:

org.apache.hadoop.hive.ql.metadata.HiveException

getDisplayString

public String getDisplayString(String[] strings)

指定者:

getDisplayString 在类中 org.apache.hadoop.hive.ql.udf.generic.GenericUDF