Package org.apache.qpid.server.query.engine.parsing.expression.arithmetic

Class PlusExpression<T,R>

java.lang.Object

org.apache.qpid.server.query.engine.parsing.expression.AbstractExpressionNode<T,R>

org.apache.qpid.server.query.engine.parsing.expression.arithmetic.AbstractArithmeticExpression<T,R>

org.apache.qpid.server.query.engine.parsing.expression.arithmetic.PlusExpression<T,R>

Type Parameters:

T - Input parameter type

R - Output parameter type

All Implemented Interfaces:

Function<T,R>, Expression<T,R>, ExpressionNode<T,R>

public class PlusExpression<T,R>
extends AbstractArithmeticExpression<T,R>

Arithmetic addition operation

Field Summary

Fields inherited from class org.apache.qpid.server.query.engine.parsing.expression.AbstractExpressionNode

_metadata

Constructor Summary

Constructors

Constructor	Description
PlusExpression(String alias, ExpressionNode<T,R> left, ExpressionNode<T,R> right)	Constructor initializes children expression list

Method Summary

Modifier and Type	Method	Description
R	apply(T value)	Performs arithmetic addition operation using parameters and the value supplied.

Methods inherited from class org.apache.qpid.server.query.engine.parsing.expression.AbstractExpressionNode

containsAggregation, ctx, evaluateChild, getAggregations, getAlias, getChild, getChildren, getParent, isAccessor, isInstantlyEvaluable, setAlias, setParent, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.qpid.server.query.engine.parsing.expression.Expression

andThen

Methods inherited from interface java.util.function.Function

andThen, compose

Constructor Detail

PlusExpression

public PlusExpression(String alias,
                      ExpressionNode<T,R> left,
                      ExpressionNode<T,R> right)

Constructor initializes children expression list

Parameters:

alias - Expression alias

left - Left child expressions

right - Right child expressions

Method Detail

apply

public R apply(T value)

Performs arithmetic addition operation using parameters and the value supplied. When one of the arguments is string, it is concatenated to other arguments.

Parameters:

value - Object to handle

Returns:

Addition result