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

Constructors

Constructor and Description
ColumnInfo()
ColumnInfo(ColumnInfo 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

Methods

Modifier and Type	Method and Description
boolean	equals(Object obj)
String	getAlias()
String	getInternalName()
boolean	getIsVirtualCol()
ObjectInspector	getObjectInspector()
String	getTabAlias()
TypeInfo	getType()
String	getTypeName()
int	hashCode()
boolean	internalEquals(ColumnInfo dest)
boolean	isHiddenVirtualCol()
boolean	isSameColumnForRR(ColumnInfo other)
boolean	isSkewedCol()
void	setAlias(String col_alias)
void	setHiddenVirtualCol(boolean isHiddenVirtualCol)
void	setInternalName(String internalName)
void	setObjectinspector(ObjectInspector writableObjectInspector)
void	setSkewedCol(boolean isSkewedCol)
void	setTabAlias(String tabAlias)
void	setType(TypeInfo type)
void	setTypeName(String typeName)
void	setVirtualCol(boolean isVirtualCol)
String	toMappingString(String tab, String col)
String	toString() Returns the string representation of the ColumnInfo.

Methods inherited from class java.lang.Object

clone, finalize, getClass, 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)

ColumnInfo

public ColumnInfo(ColumnInfo columnInfo)

Method Detail

getTypeName

public String getTypeName()

setTypeName

public void setTypeName(String typeName)

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)

isSkewedCol

public boolean isSkewedCol()

Returns:

the isSkewedCol

setSkewedCol

public void setSkewedCol(boolean isSkewedCol)

Parameters:

isSkewedCol - the isSkewedCol to set

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

internalEquals

public boolean internalEquals(ColumnInfo dest)

isSameColumnForRR

public boolean isSameColumnForRR(ColumnInfo other)

toMappingString

public String toMappingString(String tab,
                     String col)

setObjectinspector

public void setObjectinspector(ObjectInspector writableObjectInspector)