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SQLWarning (Java Platform SE 6) - JDK 5 Documentation v6.0, Java 2 SDK 英文文档

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Java™ Platform
Standard Ed. 6
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java.sql
Class SQLWarning

java.lang.Object
  extended by java.lang.Throwable
      extended by java.lang.Exception
          extended by java.sql.SQLException
              extended by java.sql.SQLWarning
All Implemented Interfaces:
Serializable, Iterable<Throwable>
Direct Known Subclasses:
DataTruncation
public class SQLWarning
extends SQLException

An exception that provides information on database access warnings. Warnings are silently chained to the object whose method caused it to be reported.

Warnings may be retrieved from Connection, Statement, and ResultSet objects. Trying to retrieve a warning on a connection after it has been closed will cause an exception to be thrown. Similarly, trying to retrieve a warning on a statement after it has been closed or on a result set after it has been closed will cause an exception to be thrown. Note that closing a statement also closes a result set that it might have produced.

See Also:
Connection.getWarnings(), Statement.getWarnings(), ResultSet.getWarnings(), Serialized Form

Constructor Summary
SQLWarning()
          Constructs a SQLWarning object.
SQLWarning(String reason)
          Constructs a SQLWarning object with a given reason.
SQLWarning(String reason, String SQLState)
          Constructs a SQLWarning object with a given reason and SQLState.
SQLWarning(String reason, String SQLState, int vendorCode)
          Constructs a SQLWarning object with a given reason, SQLState and vendorCode.
SQLWarning(String reason, String SQLState, int vendorCode, Throwable cause)
          Constructs aSQLWarning object with a given reason, SQLState, vendorCode and cause.
SQLWarning(String reason, String SQLState, Throwable cause)
          Constructs a SQLWarning object with a given reason, SQLState and cause.
SQLWarning(String reason, Throwable cause)
          Constructs a SQLWarning object with a given reason and cause.
SQLWarning(Throwable cause)
          Constructs a SQLWarning object with a given cause.
 
Method Summary
 SQLWarning getNextWarning()
          Retrieves the warning chained to this SQLWarning object by setNextWarning.
 void setNextWarning(SQLWarning w)
          Adds a SQLWarning object to the end of the chain.
 
Methods inherited from class java.sql.SQLException
getErrorCode, getNextException, getSQLState, iterator, setNextException
 
Methods inherited from class java.lang.Throwable
fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

SQLWarning

public SQLWarning(String reason,
                  String SQLState,
                  int vendorCode)
Constructs a SQLWarning object with a given reason, SQLState and vendorCode. The cause is not initialized, and may subsequently be initialized by a call to the Throwable.initCause(java.lang.Throwable) method.

Parameters:
reason - a description of the warning
SQLState - an XOPEN or SQL:2003 code identifying the warning
vendorCode - a database vendor-specific warning code

SQLWarning

public SQLWarning(String reason,
                  String SQLState)
Constructs a SQLWarning object with a given reason and SQLState. The cause is not initialized, and may subsequently be initialized by a call to the Throwable.initCause(java.lang.Throwable) method. The vendor code is initialized to 0.

Parameters:
reason - a description of the warning
SQLState - an XOPEN or SQL:2003 code identifying the warning

SQLWarning

public SQLWarning(String reason)
Constructs a SQLWarning object with a given reason. The SQLState is initialized to null and the vender code is initialized to 0. The cause is not initialized, and may subsequently be initialized by a call to the Throwable.initCause(java.lang.Throwable) method.

Parameters:
reason - a description of the warning

SQLWarning

public SQLWarning()
Constructs a SQLWarning object. The reason, SQLState are initialized to null and the vendor code is initialized to 0. The cause is not initialized, and may subsequently be initialized by a call to the Throwable.initCause(java.lang.Throwable) method.

SQLWarning

public SQLWarning(Throwable cause)
Constructs a SQLWarning object with a given cause. The SQLState is initialized to null and the vendor code is initialized to 0. The reason is initialized to null if cause==null or to cause.toString() if cause!=null.

Parameters:
cause - the underlying reason for this SQLWarning (which is saved for later retrieval by the getCause() method); may be null indicating the cause is non-existent or unknown.

SQLWarning

public SQLWarning(String reason,
                  Throwable cause)
Constructs a SQLWarning object with a given reason and cause. The SQLState is initialized to null and the vendor code is initialized to 0.

Parameters:
reason - a description of the warning
cause - the underlying reason for this SQLWarning (which is saved for later retrieval by the getCause() method); may be null indicating the cause is non-existent or unknown.

SQLWarning

public SQLWarning(String reason,
                  String SQLState,
                  Throwable cause)
Constructs a SQLWarning object with a given reason, SQLState and cause. The vendor code is initialized to 0.

Parameters:
reason - a description of the warning
SQLState - an XOPEN or SQL:2003 code identifying the warning
cause - the underlying reason for this SQLWarning (which is saved for later retrieval by the getCause() method); may be null indicating the cause is non-existent or unknown.

SQLWarning

public SQLWarning(String reason,
                  String SQLState,
                  int vendorCode,
                  Throwable cause)
Constructs aSQLWarning object with a given reason, SQLState, vendorCode and cause.

Parameters:
reason - a description of the warning
SQLState - an XOPEN or SQL:2003 code identifying the warning
vendorCode - a database vendor-specific warning code
cause - the underlying reason for this SQLWarning (which is saved for later retrieval by the getCause() method); may be null indicating the cause is non-existent or unknown.
Method Detail

getNextWarning

public SQLWarning getNextWarning()
Retrieves the warning chained to this SQLWarning object by setNextWarning.

Returns:
the next SQLException in the chain; null if none
See Also:
setNextWarning(java.sql.SQLWarning)

setNextWarning

public void setNextWarning(SQLWarning w)
Adds a SQLWarning object to the end of the chain.

Parameters:
w - the new end of the SQLException chain
See Also:
getNextWarning()
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For further API reference and developer documentation, see Java SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

Copyright 2006 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.