Package com.yahoo.search.grouping.request

Class ConstantValue<T extends Comparable>

java.lang.Object

com.yahoo.search.grouping.request.GroupingNode

com.yahoo.search.grouping.request.GroupingExpression

com.yahoo.search.grouping.request.ConstantValue<T>

Direct Known Subclasses:

BooleanValue, DoubleValue, InfiniteValue, LongValue, RawValue, StringValue

public abstract class ConstantValue<T extends Comparable>
extends GroupingExpression

This class represents a constant value in a GroupingExpression. Because it does not operate on any input, this expression type can be used at any input level (see GroupingExpression.resolveLevel(int)). All supported data types are represented as subclasses of this.

Author:

Simon Thoresen Hult, bratseth

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	ConstantValue(String label, Integer level, T value)

Method Summary

Modifier and Type	Method	Description
abstract ConstantValue	copy()	Returns a deep copy of this
T	getValue()	Returns the constant value of this

Methods inherited from class com.yahoo.search.grouping.request.GroupingExpression

asImage, asString, getLevel, getLevelOrNull, resolveLevel, setLabel, visit

Methods inherited from class com.yahoo.search.grouping.request.GroupingNode

getImage, getLabel, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

ConstantValue

protected ConstantValue(String label,
                        Integer level,
                        T value)

Method Detail

copy

public abstract ConstantValue copy()

Description copied from class: GroupingExpression

Returns a deep copy of this

Specified by:

copy in class GroupingExpression

getValue

public T getValue()

Returns the constant value of this