org.apache.ambari.server.api.predicate.expressions

Class RelationalExpression

java.lang.Object

org.apache.ambari.server.api.predicate.expressions.AbstractExpression<String>

org.apache.ambari.server.api.predicate.expressions.RelationalExpression

All Implemented Interfaces:

Expression<String>

public class RelationalExpression
extends AbstractExpression<String>

Relational Expression. Consists of a property name for the left operand, a relational operator and a value as the right operand.

Constructor Summary

Constructors

Constructor and Description
RelationalExpression(RelationalOperator op) Constructor.

Method Summary

Modifier and Type	Method and Description
Predicate	toPredicate() Get the predicate representation of the expression.
String	toString()

Methods inherited from class org.apache.ambari.server.api.predicate.expressions.AbstractExpression

defaultMerge, getLeftOperand, getOperator, getRightOperand, merge, setLeftOperand, setRightOperand

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

RelationalExpression

public RelationalExpression(RelationalOperator op)

Constructor.

Parameters:

op - relational operator

Method Detail

toPredicate

public Predicate toPredicate()
                      throws InvalidQueryException

Description copied from interface: Expression

Get the predicate representation of the expression.

Returns:

a predicate instance for the expression

Throws:

InvalidQueryException

toString

public String toString()

Overrides:

toString in class Object