程序包 org.hibernate.engine.jdbc

类 ClobProxy

java.lang.Object

org.hibernate.engine.jdbc.ClobProxy

所有已实现的接口:

InvocationHandler

直接已知子类:

NClobProxy

public class ClobProxy
extends Object
implements InvocationHandler

Manages aspects of proxying Clobs for non-contextual creation, including proxy creation and handling proxy invocations. We use proxies here solely to avoid JDBC version incompatibilities.

作者:

Gavin King, Steve Ebersole, Gail Badner

构造器概要

构造器

限定符	构造器	说明
protected	ClobProxy(Reader reader, long length)	Constructor used to build Clob from a reader.
protected	ClobProxy(String string)	Constructor used to build Clob from string data.

方法概要

修饰符和类型	方法	说明
static Clob	generateProxy(Reader reader, long length)	Generates a Clob proxy using a character reader of given length.
static Clob	generateProxy(String string)	Generates a Clob proxy using the string data.
protected InputStream	getAsciiStream()
protected Reader	getCharacterStream()
protected long	getLength()
protected static ClassLoader	getProxyClassLoader()	Determines the appropriate class loader to which the generated proxy should be scoped.
protected String	getSubString(long start, int length)
protected CharacterStream	getUnderlyingStream()
Object	invoke(Object proxy, Method method, Object[] args)
protected void	resetIfNeeded()

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

ClobProxy

protected ClobProxy(String string)

Constructor used to build Clob from string data.

参数:

string - The byte array

另请参阅:

generateProxy(String)

ClobProxy

protected ClobProxy(Reader reader,
                    long length)

Constructor used to build Clob from a reader.

参数:

reader - The character reader.

length - The length of the reader stream.

另请参阅:

generateProxy(java.io.Reader, long)

方法详细资料

getLength

protected long getLength()

getAsciiStream

protected InputStream getAsciiStream()
                              throws SQLException

抛出:

SQLException

getCharacterStream

protected Reader getCharacterStream()
                             throws SQLException

抛出:

SQLException

getUnderlyingStream

protected CharacterStream getUnderlyingStream()
                                       throws SQLException

抛出:

SQLException

getSubString

protected String getSubString(long start,
                              int length)

invoke

public Object invoke(Object proxy,
                     Method method,
                     Object[] args)
              throws Throwable

指定者:

invoke 在接口中 InvocationHandler

抛出:

UnsupportedOperationException - if any methods other than Clob.length(), Clob.getAsciiStream(), Clob.getCharacterStream(), ClobImplementer.getUnderlyingStream(), Clob.getSubString(long, int), Clob.free(), or toString/equals/hashCode are invoked.

Throwable

resetIfNeeded

protected void resetIfNeeded()
                      throws SQLException

抛出:

SQLException

generateProxy

public static Clob generateProxy(String string)

Generates a Clob proxy using the string data.

参数:

string - The data to be wrapped as a Clob.

返回:

The generated proxy.

generateProxy

public static Clob generateProxy(Reader reader,
                                 long length)

Generates a Clob proxy using a character reader of given length.

参数:

reader - The character reader

length - The length of the character reader

返回:

The generated proxy.

getProxyClassLoader

protected static ClassLoader getProxyClassLoader()

Determines the appropriate class loader to which the generated proxy should be scoped.

返回:

The class loader appropriate for proxy construction.