org.josql.functions

类 MiscellaneousFunctions

java.lang.Object

org.josql.functions.AbstractFunctionHandler

org.josql.functions.MiscellaneousFunctions

所有已实现的接口:

FunctionHandler, NotFixedResults

public class MiscellaneousFunctions
extends AbstractFunctionHandler
implements NotFixedResults

字段概要

字段

限定符和类型	字段和说明
static String	HANDLER_ID

从类继承的字段 org.josql.functions.AbstractFunctionHandler

q

构造器概要

构造器

构造器和说明
MiscellaneousFunctions()

方法概要

限定符和类型	方法和说明
double	abs(Number d)
Object	accessor(Expression oExp, Expression accExp) Call the specified accessor on the object.
Object	accessor(Object o, String acc) Call the specified accessor on the object.
void	cache(List allobjs, Expression exp)
void	cache(List allobjs, Getter get)
Object	eval(Expression exp)
String	fileExtension(Object f)
Object	get(Object o, String name)
Object	get(String name)
Object	ifThen(Expression ifcond, Expression thenVal)
Object	ifThenElse(Expression ifcond, Expression thenVal, Expression elseVal)
Boolean	instanceOf(Expression obj, Expression clazz)
Date	now(boolean zeroTime)
int	random()
int	random(Number n)
double	randomDouble()
Object	save_value(Object saveValueName)
Object	savevalue(Object saveValueName)
Object	saveValue(Object saveValueName)

从类继承的方法 org.josql.functions.AbstractFunctionHandler

setQuery

从类继承的方法 java.lang.Object

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

字段详细资料

HANDLER_ID

public static final String HANDLER_ID

另请参阅:

常量字段值

构造器详细资料

MiscellaneousFunctions

public MiscellaneousFunctions()

方法详细资料

now

public Date now(boolean zeroTime)

cache

public void cache(List allobjs,
                  Getter get)
           throws QueryExecutionException

抛出:

QueryExecutionException

cache

public void cache(List allobjs,
                  Expression exp)
           throws QueryExecutionException

抛出:

QueryExecutionException

abs

public double abs(Number d)

random

public int random()

random

public int random(Number n)

randomDouble

public double randomDouble()

saveValue

public Object saveValue(Object saveValueName)

savevalue

public Object savevalue(Object saveValueName)

save_value

public Object save_value(Object saveValueName)

fileExtension

public String fileExtension(Object f)

accessor

public Object accessor(Expression oExp,
                       Expression accExp)
                throws Exception

Call the specified accessor on the object.

参数:

oExp - The expression to use to evaluate to get the object.

accExp - The expression that is evaluated to get the accessor.

返回:

The value returned from the accessor.

抛出:

Exception - If there is something wrong.

get

public Object get(String name)
           throws Exception

抛出:

Exception

get

public Object get(Object o,
                  String name)
           throws Exception

抛出:

Exception

accessor

public Object accessor(Object o,
                       String acc)
                throws Exception

Call the specified accessor on the object.

参数:

o - The object to call the accessor on.

acc - The accessor.

返回:

The value returned from the accessor.

抛出:

Exception - If there is something wrong.

ifThen

public Object ifThen(Expression ifcond,
                     Expression thenVal)
              throws QueryExecutionException

抛出:

QueryExecutionException

ifThenElse

public Object ifThenElse(Expression ifcond,
                         Expression thenVal,
                         Expression elseVal)
                  throws QueryExecutionException

抛出:

QueryExecutionException

eval

public Object eval(Expression exp)
            throws QueryExecutionException

抛出:

QueryExecutionException

instanceOf

public Boolean instanceOf(Expression obj,
                          Expression clazz)
                   throws QueryExecutionException

抛出:

QueryExecutionException