org.apache.hadoop.hive.ql.exec
Class ColumnInfo

java.lang.Object
  org.apache.hadoop.hive.ql.exec.ColumnInfo

All Implemented Interfaces:

Serializable

public class ColumnInfo
extends Object
implements Serializable

Implementation for ColumnInfo which contains the internal name for the column (the one that is used by the operator to access the column) and the type (identified by a java class).

See Also:

Serialized Form

Constructor Summary

ColumnInfo()

ColumnInfo(String internalName, Class type, String tabAlias, boolean isVirtualCol)

ColumnInfo(String internalName, ObjectInspector objectInspector, String tabAlias, boolean isVirtualCol)

ColumnInfo(String internalName, ObjectInspector objectInspector, String tabAlias, boolean isVirtualCol, boolean isHiddenVirtualCol)

ColumnInfo(String internalName, TypeInfo type, String tabAlias, boolean isVirtualCol)

ColumnInfo(String internalName, TypeInfo type, String tabAlias, boolean isVirtualCol, boolean isHiddenVirtualCol)

Method Summary

String	getAlias()
String	getInternalName()
boolean	getIsVirtualCol()
ObjectInspector	getObjectInspector()
String	getTabAlias()
TypeInfo	getType()
boolean	isHiddenVirtualCol()
void	setAlias(String col_alias)
void	setHiddenVirtualCol(boolean isHiddenVirtualCol)
void	setInternalName(String internalName)
void	setTabAlias(String tabAlias)
void	setType(TypeInfo type)
void	setVirtualCol(boolean isVirtualCol)
String	toString() Returns the string representation of the ColumnInfo.

Methods inherited from class java.lang.Object

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

Constructor Detail

ColumnInfo

public ColumnInfo()

ColumnInfo

public ColumnInfo(String internalName,
                  TypeInfo type,
                  String tabAlias,
                  boolean isVirtualCol)

ColumnInfo

public ColumnInfo(String internalName,
                  Class type,
                  String tabAlias,
                  boolean isVirtualCol)

ColumnInfo

public ColumnInfo(String internalName,
                  TypeInfo type,
                  String tabAlias,
                  boolean isVirtualCol,
                  boolean isHiddenVirtualCol)

ColumnInfo

public ColumnInfo(String internalName,
                  ObjectInspector objectInspector,
                  String tabAlias,
                  boolean isVirtualCol)

ColumnInfo

public ColumnInfo(String internalName,
                  ObjectInspector objectInspector,
                  String tabAlias,
                  boolean isVirtualCol,
                  boolean isHiddenVirtualCol)

Method Detail

getType

public TypeInfo getType()

getObjectInspector

public ObjectInspector getObjectInspector()

getInternalName

public String getInternalName()

setType

public void setType(TypeInfo type)

setInternalName

public void setInternalName(String internalName)

getTabAlias

public String getTabAlias()

getIsVirtualCol

public boolean getIsVirtualCol()

isHiddenVirtualCol

public boolean isHiddenVirtualCol()

toString

public String toString()

Returns the string representation of the ColumnInfo.

Overrides:

toString in class Object

setAlias

public void setAlias(String col_alias)

getAlias

public String getAlias()

setTabAlias

public void setTabAlias(String tabAlias)

setVirtualCol

public void setVirtualCol(boolean isVirtualCol)

setHiddenVirtualCol

public void setHiddenVirtualCol(boolean isHiddenVirtualCol)