oracle.spatial.hadoop.vector.hive

Class ST_Geometry

java.lang.Object

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

oracle.spatial.hadoop.vector.hive.ST_Geometry

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

Direct Known Subclasses:

ST_LineString, ST_MultiLineString, ST_MultiPoint, ST_MultiPolygon, ST_Point, ST_Polygon

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

Creates a GeoJSON string representation of the geometry, and returns a GeoJSON string representation of the geometry.

Format:
 ST_GEOMETRY(geometry STRING, srid INT); - constructor to create a geometry with GeoJSON or WKT strings
 ST_GEOMETRY(geometry BINARY, srid INT); - constructor to create a geometry with WKB
 ST_GEOMETRY(geometry Object, hiveRecordInfoProvider STRING); - constructor to create a geometry using a HiveRecordInfoProvider

Example:
 select ST_Geometry ('{ "type": "Point", "coordinates": [100.0, 0.0]}', 8307) from hivetable LIMIT 1; -- creates a point using GeoJSON
 select ST_Geometry ('point(100.0 0.0)', 8307) from hivetable LIMIT 1; -- creates a point using WKT
 select ST_Geometry (geoColumn, 'hive.samples.SampleHiveRecordInfoProviderImpl') from hivetable; -- creates the geometries using a HiveRecordInfoProvider

Nested Class Summary

Nested classes/interfaces inherited from class 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

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	constructWithRecordInfoProvider
protected HiveRecordInfoProvider	hiveRecordInfoProvider
protected java.util.List<org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector>	inputOIList
protected boolean	isWKB
protected oracle.spatial.util.WKB	wkb
protected oracle.spatial.util.WKT	wkt

Constructor Summary

Constructors

Constructor and Description
ST_Geometry()

Method Summary

Methods

Modifier and Type	Method and Description
java.lang.Object	evaluate(org.apache.hadoop.hive.ql.udf.generic.GenericUDF.DeferredObject[] args)
protected java.lang.Object	evaluateGeoJSONOrWKT(org.apache.hadoop.hive.ql.udf.generic.GenericUDF.DeferredObject[] args)
protected java.lang.Object	evaluateWithHiveRecordInfoProvider(org.apache.hadoop.hive.ql.udf.generic.GenericUDF.DeferredObject[] args)
protected java.lang.Object	evaluateWKB(org.apache.hadoop.hive.ql.udf.generic.GenericUDF.DeferredObject[] args)
java.lang.String	getDisplayString(java.lang.String[] args)
protected java.lang.String	getFunctionName()
org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector	initialize(org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector[] args)

Methods inherited from class org.apache.hadoop.hive.ql.udf.generic.GenericUDF

checkArgsSize, close, configure, copyToNewInstance, flip, getFuncName, getRequiredFiles, getRequiredJars, getUdfName, initializeAndFoldConstants

Methods inherited from class java.lang.Object

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

Field Detail

inputOIList

protected transient java.util.List<org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector> inputOIList

wkt

protected transient oracle.spatial.util.WKT wkt

wkb

protected transient oracle.spatial.util.WKB wkb

constructWithRecordInfoProvider

protected transient boolean constructWithRecordInfoProvider

isWKB

protected transient boolean isWKB

hiveRecordInfoProvider

protected HiveRecordInfoProvider hiveRecordInfoProvider

Constructor Detail

ST_Geometry

public ST_Geometry()

Method Detail

evaluate

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

Specified by:

evaluate in class org.apache.hadoop.hive.ql.udf.generic.GenericUDF

Throws:

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

evaluateWithHiveRecordInfoProvider

protected java.lang.Object evaluateWithHiveRecordInfoProvider(org.apache.hadoop.hive.ql.udf.generic.GenericUDF.DeferredObject[] args)
                                                       throws org.apache.hadoop.hive.ql.metadata.HiveException

Throws:

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

evaluateGeoJSONOrWKT

protected java.lang.Object evaluateGeoJSONOrWKT(org.apache.hadoop.hive.ql.udf.generic.GenericUDF.DeferredObject[] args)
                                         throws org.apache.hadoop.hive.ql.metadata.HiveException

Throws:

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

evaluateWKB

protected java.lang.Object evaluateWKB(org.apache.hadoop.hive.ql.udf.generic.GenericUDF.DeferredObject[] args)
                                throws org.apache.hadoop.hive.ql.metadata.HiveException

Throws:

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

initialize

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

Specified by:

initialize in class org.apache.hadoop.hive.ql.udf.generic.GenericUDF

Throws:

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

getFunctionName

protected java.lang.String getFunctionName()

getDisplayString

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

Specified by:

getDisplayString in class org.apache.hadoop.hive.ql.udf.generic.GenericUDF