org.h2.expression

类 ParameterRemote

java.lang.Object

org.h2.expression.ParameterRemote

所有已实现的接口:

ParameterInterface

public class ParameterRemote
extends Object
implements ParameterInterface

A client side (remote) parameter.

构造器概要

构造器

构造器和说明
ParameterRemote(int index)

方法概要

限定符和类型	方法和说明
void	checkSet() Check if the value is set.
int	getNullable() Check if this column is nullable.
Value	getParamValue() Get the value of the parameter if set.
TypeInfo	getType() Returns the expected data type if no value is set, or the data type of the value if one is set.
boolean	isValueSet() Is the value of a parameter set.
void	readMetaData(Transfer transfer) Read the parameter meta data from the transfer object.
void	setValue(Value newValue, boolean closeOld) Set the value of the parameter.
static void	writeMetaData(Transfer transfer, ParameterInterface p) Write the parameter meta data to the transfer object.

从类继承的方法 java.lang.Object

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

构造器详细资料

ParameterRemote

public ParameterRemote(int index)

方法详细资料

setValue

public void setValue(Value newValue,
                     boolean closeOld)

从接口复制的说明: ParameterInterface

Set the value of the parameter.

指定者:

setValue 在接口中 ParameterInterface

参数:

newValue - the new value

closeOld - if the old value (if one is set) should be closed

getParamValue

public Value getParamValue()

从接口复制的说明: ParameterInterface

Get the value of the parameter if set.

指定者:

getParamValue 在接口中 ParameterInterface

返回:

the value or null

checkSet

public void checkSet()

从接口复制的说明: ParameterInterface

Check if the value is set.

指定者:

checkSet 在接口中 ParameterInterface

isValueSet

public boolean isValueSet()

从接口复制的说明: ParameterInterface

Is the value of a parameter set.

指定者:

isValueSet 在接口中 ParameterInterface

返回:

true if set

getType

public TypeInfo getType()

从接口复制的说明: ParameterInterface

Returns the expected data type if no value is set, or the data type of the value if one is set.

指定者:

getType 在接口中 ParameterInterface

返回:

the data type

getNullable

public int getNullable()

从接口复制的说明: ParameterInterface

Check if this column is nullable.

指定者:

getNullable 在接口中 ParameterInterface

返回:

Column.NULLABLE_*

readMetaData

public void readMetaData(Transfer transfer)
                  throws IOException

Read the parameter meta data from the transfer object.

参数:

transfer - the transfer object

抛出:

IOException - on failure

writeMetaData

public static void writeMetaData(Transfer transfer,
                                 ParameterInterface p)
                          throws IOException

Write the parameter meta data to the transfer object.

参数:

transfer - the transfer object

p - the parameter

抛出:

IOException - on failure