org.apache.hadoop.hive.ql.plan

Class ExprNodeGenericFuncDesc

java.lang.Object

org.apache.hadoop.hive.ql.plan.ExprNodeDesc

org.apache.hadoop.hive.ql.plan.ExprNodeGenericFuncDesc

All Implemented Interfaces:

Serializable, Node

public class ExprNodeGenericFuncDesc
extends ExprNodeDesc
implements Serializable

Describes a GenericFunc node.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.hive.ql.plan.ExprNodeDesc

ExprNodeDesc.ExprNodeDescEqualityWrapper

Field Summary

Fields inherited from class org.apache.hadoop.hive.ql.plan.ExprNodeDesc

typeInfo

Constructor Summary

Constructors

Constructor and Description
ExprNodeGenericFuncDesc()
ExprNodeGenericFuncDesc(ObjectInspector oi, GenericUDF genericUDF, List<ExprNodeDesc> children)
ExprNodeGenericFuncDesc(ObjectInspector oi, GenericUDF genericUDF, String funcText, List<ExprNodeDesc> children)
ExprNodeGenericFuncDesc(TypeInfo typeInfo, GenericUDF genericUDF, List<ExprNodeDesc> children)
ExprNodeGenericFuncDesc(TypeInfo typeInfo, GenericUDF genericUDF, String funcText, List<ExprNodeDesc> children)

Method Summary

Modifier and Type	Method and Description
ExprNodeDesc	clone()
List<ExprNodeDesc>	getChildren() Gets the vector of children nodes.
List<String>	getCols()
String	getExprString()
String	getExprString(boolean sortChildren)
String	getFuncText()
GenericUDF	getGenericUDF()
ObjectInspector	getWritableObjectInspector()
int	hashCode()
boolean	isSame(Object o)
boolean	isSortedExpr()
static ExprNodeGenericFuncDesc	newInstance(GenericUDF genericUDF, List<ExprNodeDesc> children)
static ExprNodeGenericFuncDesc	newInstance(GenericUDF genericUDF, String funcText, List<ExprNodeDesc> children) Create a ExprNodeGenericFuncDesc based on the genericUDFClass and the children parameters.
void	setChildren(List<ExprNodeDesc> children)
void	setGenericUDF(GenericUDF genericUDF)
void	setSortedExpr(boolean isSortedExpr)
String	toString()

Methods inherited from class org.apache.hadoop.hive.ql.plan.ExprNodeDesc

equals, getExprStringForExplain, getName, getTypeInfo, getTypeString, setTypeInfo

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

ExprNodeGenericFuncDesc

public ExprNodeGenericFuncDesc()

ExprNodeGenericFuncDesc

public ExprNodeGenericFuncDesc(TypeInfo typeInfo,
                               GenericUDF genericUDF,
                               String funcText,
                               List<ExprNodeDesc> children)

ExprNodeGenericFuncDesc

public ExprNodeGenericFuncDesc(ObjectInspector oi,
                               GenericUDF genericUDF,
                               String funcText,
                               List<ExprNodeDesc> children)

ExprNodeGenericFuncDesc

public ExprNodeGenericFuncDesc(TypeInfo typeInfo,
                               GenericUDF genericUDF,
                               List<ExprNodeDesc> children)

ExprNodeGenericFuncDesc

public ExprNodeGenericFuncDesc(ObjectInspector oi,
                               GenericUDF genericUDF,
                               List<ExprNodeDesc> children)

Method Detail

getWritableObjectInspector

public ObjectInspector getWritableObjectInspector()

Overrides:

getWritableObjectInspector in class ExprNodeDesc

getGenericUDF

public GenericUDF getGenericUDF()

setGenericUDF

public void setGenericUDF(GenericUDF genericUDF)

setChildren

public void setChildren(List<ExprNodeDesc> children)

getChildren

public List<ExprNodeDesc> getChildren()

Description copied from interface: Node

Gets the vector of children nodes. This is used in the graph walker algorithms.

Specified by:

getChildren in interface Node

Overrides:

getChildren in class ExprNodeDesc

Returns:

List

toString

public String toString()

Overrides:

toString in class Object

getExprString

public String getExprString()

Overrides:

getExprString in class ExprNodeDesc

getExprString

public String getExprString(boolean sortChildren)

Overrides:

getExprString in class ExprNodeDesc

getCols

public List<String> getCols()

Overrides:

getCols in class ExprNodeDesc

clone

public ExprNodeDesc clone()

Specified by:

clone in class ExprNodeDesc

newInstance

public static ExprNodeGenericFuncDesc newInstance(GenericUDF genericUDF,
                                                  String funcText,
                                                  List<ExprNodeDesc> children)
                                           throws UDFArgumentException

Create a ExprNodeGenericFuncDesc based on the genericUDFClass and the children parameters. If the function has an explicit name, the newInstance method should be passed the function name in the funcText argument.

Throws:

UDFArgumentException

newInstance

public static ExprNodeGenericFuncDesc newInstance(GenericUDF genericUDF,
                                                  List<ExprNodeDesc> children)
                                           throws UDFArgumentException

Throws:

UDFArgumentException

isSame

public boolean isSame(Object o)

Specified by:

isSame in class ExprNodeDesc

hashCode

public int hashCode()

Overrides:

hashCode in class ExprNodeDesc

isSortedExpr

public boolean isSortedExpr()

setSortedExpr

public void setSortedExpr(boolean isSortedExpr)

getFuncText

public String getFuncText()