Package com.arcadedb.query.sql.function.math

Class SQLFunctionMathAbstract

java.lang.Object

com.arcadedb.query.sql.function.SQLFunctionAbstract

com.arcadedb.query.sql.function.SQLFunctionConfigurableAbstract

com.arcadedb.query.sql.function.math.SQLFunctionMathAbstract

All Implemented Interfaces:

SQLFunction

Direct Known Subclasses:

SQLFunctionAbsoluteValue, SQLFunctionAverage, SQLFunctionCount, SQLFunctionHeuristicPathFinderAbstract, SQLFunctionMax, SQLFunctionMin, SQLFunctionPathFinder, SQLFunctionShortestPath, SQLFunctionSum

public abstract class SQLFunctionMathAbstract
extends SQLFunctionConfigurableAbstract

Abstract class for math function.

Author:

Luca Garulli (l.garulli--(at)--gmail.com)

Field Summary

Fields inherited from class com.arcadedb.query.sql.function.SQLFunctionConfigurableAbstract

configuredParameters

Fields inherited from class com.arcadedb.query.sql.function.SQLFunctionAbstract

name

Constructor Summary

Constructors

Constructor	Description
SQLFunctionMathAbstract(String iName, int iMinParams, int iMaxParams)

Method Summary

Modifier and Type	Method	Description
boolean	aggregateResults()	A function can make calculation on several records before returning a result.
protected Class<? extends Number>	getClassWithMorePrecision(Class<? extends Number> iClass1, Class<? extends Number> iClass2)
protected Number	getContextValue(Object iContext, Class<? extends Number> iClass)

Methods inherited from class com.arcadedb.query.sql.function.SQLFunctionConfigurableAbstract

config, toString

Methods inherited from class com.arcadedb.query.sql.function.SQLFunctionAbstract

getName, getResult

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.arcadedb.query.sql.executor.SQLFunction

execute, getSyntax

Constructor Detail

SQLFunctionMathAbstract

public SQLFunctionMathAbstract(String iName,
                               int iMinParams,
                               int iMaxParams)

Method Detail

getContextValue

protected Number getContextValue(Object iContext,
                                 Class<? extends Number> iClass)

getClassWithMorePrecision

protected Class<? extends Number> getClassWithMorePrecision(Class<? extends Number> iClass1,
                                                            Class<? extends Number> iClass2)

aggregateResults

public boolean aggregateResults()

Description copied from interface: SQLFunction

A function can make calculation on several records before returning a result.

Example of such function : sum, count, max, min ...

The final result of the aggregation is obtained by calling SQLFunction.getResult()

Specified by:

aggregateResults in interface SQLFunction

Overrides:

aggregateResults in class SQLFunctionAbstract

Returns:

true if function aggregate results