com.redhat.thermostat.storage.query

Class BinaryComparisonExpression<T>

java.lang.Object

com.redhat.thermostat.storage.query.BinaryComparisonExpression<T>

Type Parameters:

T - - the type parameter of this expression's Key

All Implemented Interfaces:

ComparisonExpression, Expression

public final class BinaryComparisonExpression<T>
extends Object
implements ComparisonExpression

A BinaryExpression that corresponds to an algebraic comparison between a Key and a corresponding value.

Constructor Summary

Constructors

Constructor and Description
BinaryComparisonExpression(LiteralExpression<Key<T>> leftOperand, BinaryComparisonOperator operator, LiteralExpression<T> rightOperand) Constructs a BinaryComparisonExpression whose operands are a LiteralExpression for a Key and a LiteralExpression for the value to compare against the key.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj)
S	getLeftOperand()
U	getOperator()
T	getRightOperand()
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

BinaryComparisonExpression

public BinaryComparisonExpression(LiteralExpression<Key<T>> leftOperand,
                                  BinaryComparisonOperator operator,
                                  LiteralExpression<T> rightOperand)

Constructs a BinaryComparisonExpression whose operands are a LiteralExpression for a Key and a LiteralExpression for the value to compare against the key.

This constructor exists mainly for JSON serialization, use methods in ExpressionFactory instead of this constructor.

Parameters:

leftOperand - - left operand for this expression

operator - - the operator for this expression

rightOperand - - right operand for this expression

Method Detail

getLeftOperand

public S getLeftOperand()

Returns:

the left operand of this expression

getOperator

public U getOperator()

Returns:

the operator of this expression

getRightOperand

public T getRightOperand()

Returns:

the right operand of this expression

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object