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 Connection#getWarnings
* @see Statement#getWarnings
* @see ResultSet#getWarnings
*/
public class SQLWarning extends SQLException {
/**
* 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
* {@link Throwable#initCause(java.lang.Throwable)} method.
*
* @param reason a description of the warning
* @param SQLState an XOPEN or SQL:2003 code identifying the warning
* @param vendorCode a database vendor-specific warning code
*/
public SQLWarning(String reason, String SQLState, int vendorCode) {
super(reason, SQLState, vendorCode);
DriverManager.println("SQLWarning: reason(" + reason +
") SQLState(" + SQLState +
") vendor code(" + vendorCode + ")");
}
/**
* 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
* {@link Throwable#initCause(java.lang.Throwable)} method. The vendor code
* is initialized to 0.
*
* @param reason a description of the warning
* @param SQLState an XOPEN or SQL:2003 code identifying the warning
*/
public SQLWarning(String reason, String SQLState) {
super(reason, SQLState);
DriverManager.println("SQLWarning: reason(" + reason +
") SQLState(" + SQLState + ")");
}
/**
* 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
* {@link Throwable#initCause(java.lang.Throwable)} method.
*
* @param reason a description of the warning
*/
public SQLWarning(String reason) {
super(reason);
DriverManager.println("SQLWarning: reason(" + reason + ")");
}
/**
* 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
* {@link Throwable#initCause(java.lang.Throwable)} method.
*
*/
public SQLWarning() {
super();
DriverManager.println("SQLWarning: ");
}
/**
* 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.
*
* @param 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.
*/
public SQLWarning(Throwable cause) {
super(cause);
DriverManager.println("SQLWarning");
}
/**
* Constructs a SQLWarning object
* with a given
* reason and cause.
* The SQLState is initialized to null
* and the vendor code is initialized to 0.
*
* @param reason a description of the warning
* @param 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.
*/
public SQLWarning(String reason, Throwable cause) {
super(reason,cause);
DriverManager.println("SQLWarning : reason("+ reason + ")");
}
/**
* Constructs a SQLWarning object
* with a given
* reason, SQLState and cause.
* The vendor code is initialized to 0.
*
* @param reason a description of the warning
* @param SQLState an XOPEN or SQL:2003 code identifying the warning
* @param 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.
*/
public SQLWarning(String reason, String SQLState, Throwable cause) {
super(reason,SQLState,cause);
DriverManager.println("SQLWarning: reason(" + reason +
") SQLState(" + SQLState + ")");
}
/**
* Constructs aSQLWarning object
* with a given
* reason, SQLState, vendorCode
* and cause.
*
* @param reason a description of the warning
* @param SQLState an XOPEN or SQL:2003 code identifying the warning
* @param vendorCode a database vendor-specific warning code
* @param 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.
*/
public SQLWarning(String reason, String SQLState, int vendorCode, Throwable cause) {
super(reason,SQLState,vendorCode,cause);
DriverManager.println("SQLWarning: reason(" + reason +
") SQLState(" + SQLState +
") vendor code(" + vendorCode + ")");
}
/**
* Retrieves the warning chained to this SQLWarning object by
* setNextWarning.
*
* @return the next SQLException in the chain; null if none
* @see #setNextWarning
*/
public SQLWarning getNextWarning() {
try {
return ((SQLWarning)getNextException());
} catch (ClassCastException ex) {
// The chained value isn't a SQLWarning.
// This is a programming error by whoever added it to
// the SQLWarning chain. We throw a Java "Error".
throw new Error("SQLWarning chain holds value that is not a SQLWarning");
}
}
/**
* Adds a SQLWarning object to the end of the chain.
*
* @param w the new end of the SQLException chain
* @see #getNextWarning
*/
public void setNextWarning(SQLWarning w) {
setNextException(w);
}
private static final long serialVersionUID = 3917336774604784856L;
}