org.apache.hadoop.hive.ql.io.sarg

Interface PredicateLeaf

All Known Implementing Classes:

SearchArgumentImpl.PredicateLeafImpl

public interface PredicateLeaf

The primitive predicates that form a SearchArgument.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	PredicateLeaf.Operator The possible operators for predicates.
static class	PredicateLeaf.Type The possible types for sargs.

Method Summary

Modifier and Type	Method and Description
String	getColumnName() Get the simple column name.
Object	getLiteral() Get the literal half of the predicate leaf.
List<Object>	getLiteralList() For operators with multiple literals (IN and BETWEEN), get the literals.
PredicateLeaf.Operator	getOperator() Get the operator for the leaf.
PredicateLeaf.Type	getType() Get the type of the column and literal by the file format.

Method Detail

getOperator

PredicateLeaf.Operator getOperator()

Get the operator for the leaf.

getType

PredicateLeaf.Type getType()

Get the type of the column and literal by the file format.

getColumnName

String getColumnName()

Get the simple column name.

Returns:

the column name

getLiteral

Object getLiteral()

Get the literal half of the predicate leaf. Adapt the original type for what orc needs

Returns:

an Integer, Long, Double, or String

getLiteralList

List<Object> getLiteralList()

For operators with multiple literals (IN and BETWEEN), get the literals.

Returns:

the list of literals (Integer, Longs, Doubles, or Strings)