org.apache.hadoop.hive.serde2.lazy.objectinspector

Class LazyUnionObjectInspector

java.lang.Object

org.apache.hadoop.hive.serde2.lazy.objectinspector.LazyUnionObjectInspector

All Implemented Interfaces:

java.lang.Cloneable, ObjectInspector, UnionObjectInspector

public class LazyUnionObjectInspector
extends java.lang.Object
implements UnionObjectInspector

LazyUnionObjectInspector works on union data that is stored in LazyUnion. Always use the LazyObjectInspectorFactory to create new ObjectInspector objects, instead of directly creating an instance of this class.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector

ObjectInspector.Category

Field Summary

Fields

Modifier and Type	Field and Description
static org.apache.commons.logging.Log	LOG
protected java.util.List<ObjectInspector>	ois

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	LazyUnionObjectInspector(java.util.List<ObjectInspector> ois, byte separator, Text nullSequence)
protected	LazyUnionObjectInspector(java.util.List<ObjectInspector> ois, byte separator, Text nullSequence, boolean escaped, byte escapeChar)

Method Summary

Modifier and Type	Method and Description
ObjectInspector.Category	getCategory() An ObjectInspector must inherit from one of the following interfaces if getCategory() returns: PRIMITIVE: PrimitiveObjectInspector LIST: ListObjectInspector MAP: MapObjectInspector STRUCT: StructObjectInspector.
byte	getEscapeChar()
java.lang.Object	getField(java.lang.Object data) Return the field based on the tag associated with the Object.
Text	getNullSequence()
java.util.List<ObjectInspector>	getObjectInspectors() Returns the array of ObjectInspectors that are for each of the tags.
byte	getSeparator()
byte	getTag(java.lang.Object data) Return the tag of the object.
java.lang.String	getTypeName() Returns the name of the data type that is inspected by this ObjectInspector.
protected void	init(java.util.List<ObjectInspector> ois, byte separator, Text nullSequence)
protected void	init(java.util.List<ObjectInspector> ois, byte separator, Text nullSequence, boolean escaped, byte escapeChar)
boolean	isEscaped()

Methods inherited from class java.lang.Object

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

Field Detail

LOG

public static final org.apache.commons.logging.Log LOG

ois

protected java.util.List<ObjectInspector> ois

Constructor Detail

LazyUnionObjectInspector

protected LazyUnionObjectInspector(java.util.List<ObjectInspector> ois,
                                   byte separator,
                                   Text nullSequence,
                                   boolean escaped,
                                   byte escapeChar)

LazyUnionObjectInspector

protected LazyUnionObjectInspector(java.util.List<ObjectInspector> ois,
                                   byte separator,
                                   Text nullSequence)

Method Detail

getTypeName

public java.lang.String getTypeName()

Description copied from interface: ObjectInspector

Returns the name of the data type that is inspected by this ObjectInspector. This is used to display the type information to the user. For primitive types, the type name is standardized. For other types, the type name can be something like "list", "map", java class names, or user-defined type names similar to typedef.

Specified by:

getTypeName in interface ObjectInspector

init

protected void init(java.util.List<ObjectInspector> ois,
                    byte separator,
                    Text nullSequence,
                    boolean escaped,
                    byte escapeChar)

init

protected void init(java.util.List<ObjectInspector> ois,
                    byte separator,
                    Text nullSequence)

getCategory

public final ObjectInspector.Category getCategory()

Description copied from interface: ObjectInspector

An ObjectInspector must inherit from one of the following interfaces if getCategory() returns: PRIMITIVE: PrimitiveObjectInspector LIST: ListObjectInspector MAP: MapObjectInspector STRUCT: StructObjectInspector.

Specified by:

getCategory in interface ObjectInspector

getSeparator

public byte getSeparator()

getNullSequence

public Text getNullSequence()

isEscaped

public boolean isEscaped()

getEscapeChar

public byte getEscapeChar()

getField

public java.lang.Object getField(java.lang.Object data)

Description copied from interface: UnionObjectInspector

Return the field based on the tag associated with the Object.

Specified by:

getField in interface UnionObjectInspector

getObjectInspectors

public java.util.List<ObjectInspector> getObjectInspectors()

Description copied from interface: UnionObjectInspector

Returns the array of ObjectInspectors that are for each of the tags.

Specified by:

getObjectInspectors in interface UnionObjectInspector

getTag

public byte getTag(java.lang.Object data)

Description copied from interface: UnionObjectInspector

Return the tag of the object.

Specified by:

getTag in interface UnionObjectInspector