org.apache.lens.cube.metadata
Class ExprColumn

java.lang.Object
  org.apache.lens.cube.metadata.CubeColumn
      org.apache.lens.cube.metadata.ExprColumn

All Implemented Interfaces:

Named

public class ExprColumn
extends CubeColumn

Constructor Summary

ExprColumn(org.apache.hadoop.hive.metastore.api.FieldSchema column, String displayString, String expr)

ExprColumn(String name, Map<String,String> props)

Method Summary

void	addProperties(Map<String,String> props)
boolean	equals(Object obj)
org.apache.hadoop.hive.ql.parse.ASTNode	getAst() Get the AST corresponding to the expression
String	getExpr()
String	getType()
int	hashCode()
String	toString()

Methods inherited from class org.apache.lens.cube.metadata.CubeColumn

getCost, getDescription, getDisplayString, getEndTime, getName, getStartTime

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

ExprColumn

public ExprColumn(org.apache.hadoop.hive.metastore.api.FieldSchema column,
                  String displayString,
                  String expr)
           throws org.apache.hadoop.hive.ql.parse.ParseException

Throws:

org.apache.hadoop.hive.ql.parse.ParseException

ExprColumn

public ExprColumn(String name,
                  Map<String,String> props)

Method Detail

getExpr

public String getExpr()

Returns:

the expression

getType

public String getType()

addProperties

public void addProperties(Map<String,String> props)

Overrides:

addProperties in class CubeColumn

hashCode

public int hashCode()

Overrides:

hashCode in class CubeColumn

equals

public boolean equals(Object obj)

Overrides:

equals in class CubeColumn

toString

public String toString()

Overrides:

toString in class CubeColumn

getAst

public org.apache.hadoop.hive.ql.parse.ASTNode getAst()
                                               throws org.apache.hadoop.hive.ql.parse.ParseException

Get the AST corresponding to the expression

Returns:

the ast

Throws:

org.apache.hadoop.hive.ql.parse.ParseException