org.apache.hadoop.hive.ql.plan

Class ExprNodeDesc

java.lang.Object

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

All Implemented Interfaces:

java.io.Serializable, Node

Direct Known Subclasses:

ExprNodeColumnDesc, ExprNodeColumnListDesc, ExprNodeConstantDesc, ExprNodeFieldDesc, ExprNodeGenericFuncDesc, ExprNodeNullDesc

public abstract class ExprNodeDesc
extends java.lang.Object
implements java.io.Serializable, Node

ExprNodeDesc.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ExprNodeDesc.ExprNodeDescEqualityWrapper

Constructor Summary

Constructors

Constructor and Description
ExprNodeDesc()
ExprNodeDesc(TypeInfo typeInfo)

Method Summary

Modifier and Type	Method and Description
abstract ExprNodeDesc	clone()
java.util.List<ExprNodeDesc>	getChildren() Gets the vector of children nodes.
java.util.List<java.lang.String>	getCols()
java.lang.String	getExprString()
java.lang.String	getName() Gets the name of the node.
TypeInfo	getTypeInfo()
java.lang.String	getTypeString()
ObjectInspector	getWritableObjectInspector()
int	hashCode()
abstract boolean	isSame(java.lang.Object o)
void	setTypeInfo(TypeInfo typeInfo)

Methods inherited from class java.lang.Object

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

Constructor Detail

ExprNodeDesc

public ExprNodeDesc()

ExprNodeDesc

public ExprNodeDesc(TypeInfo typeInfo)

Method Detail

clone

public abstract ExprNodeDesc clone()

Overrides:

clone in class java.lang.Object

isSame

public abstract boolean isSame(java.lang.Object o)

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

getTypeInfo

public TypeInfo getTypeInfo()

setTypeInfo

public void setTypeInfo(TypeInfo typeInfo)

getExprString

public java.lang.String getExprString()

getWritableObjectInspector

public ObjectInspector getWritableObjectInspector()

getTypeString

public java.lang.String getTypeString()

getCols

public java.util.List<java.lang.String> getCols()

getChildren

public java.util.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

Returns:

List

getName

public java.lang.String getName()

Description copied from interface: Node

Gets the name of the node. This is used in the rule dispatchers.

Specified by:

getName in interface Node

Returns:

String