oracle.spatial.hadoop.vector.hive.function

Class ST_AsWKT

java.lang.Object

GenericUDF

oracle.spatial.hadoop.vector.hive.function.ST_AsWKT

public class ST_AsWKT
extends GenericUDF

Returns the well-known text (WKT) representation of the geometry.

Format:
 ST_AsWKT(geometry ST_Geometry) - return the Well-Known Text (WKT) representation of geometry

Example:
 select ST_AsWKT(
  ST_Point('{ "type": "Point", "coordinates": [0, 5]}', 8307)
 ) from hivetable LIMIT 1;

Constructor Summary

Constructors

Constructor and Description
ST_AsWKT()

Method Summary

Modifier and Type	Method and Description
java.lang.Object	evaluate(DeferredObject[] args)
java.lang.String	getDisplayString(java.lang.String[] arg0)
ObjectInspector	initialize(ObjectInspector[] args)

Methods inherited from class java.lang.Object

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

Constructor Detail

ST_AsWKT

public ST_AsWKT()

Method Detail

evaluate

public java.lang.Object evaluate(DeferredObject[] args)
                          throws HiveException

Throws:

HiveException

getDisplayString

public java.lang.String getDisplayString(java.lang.String[] arg0)

initialize

public ObjectInspector initialize(ObjectInspector[] args)
                           throws UDFArgumentException

Throws:

UDFArgumentException