org.apache.ambari.server.api.predicate.operators

Interface RelationalOperator

All Superinterfaces:

Operator

All Known Implementing Classes:

EqualsOperator, FilterOperator, GreaterEqualsOperator, GreaterOperator, InOperator, IsEmptyOperator, LessEqualsOperator, LessOperator, NotEqualsOperator

public interface RelationalOperator
extends Operator

Relational operator external representation.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.ambari.server.api.predicate.operators.Operator

Operator.TYPE

Field Summary

Fields inherited from interface org.apache.ambari.server.api.predicate.operators.Operator

MAX_OP_PRECEDENCE

Method Summary

Modifier and Type	Method and Description
Predicate	toPredicate(String prop, String val) Create a predicate for this relational operator.

Methods inherited from interface org.apache.ambari.server.api.predicate.operators.Operator

getPrecedence, getType

Method Detail

toPredicate

Predicate toPredicate(String prop,
                      String val)
               throws InvalidQueryException

Create a predicate for this relational operator.

Parameters:

prop - left operand

val - right operand

Returns:

a predicate instance for this operator.

Throws:

InvalidQueryException - if unable to build the predicate because of invalid operands