com.mysql.jdbc
Class CallableStatement.CallableStatementParamInfoJDBC3

java.lang.Object
  extended by com.mysql.jdbc.CallableStatement.CallableStatementParamInfo
      extended by com.mysql.jdbc.CallableStatement.CallableStatementParamInfoJDBC3
All Implemented Interfaces:
java.sql.ParameterMetaData, java.sql.Wrapper
Enclosing class:
CallableStatement

protected class CallableStatement.CallableStatementParamInfoJDBC3
extends CallableStatement.CallableStatementParamInfo
implements java.sql.ParameterMetaData

Can't implement this directly, as then you can't use callable statements on JDK-1.3.1, which unfortunately isn't EOL'd yet, and still present quite a bit out there in the wild (Websphere, FreeBSD, anyone?)


Field Summary
 
Fields inherited from class com.mysql.jdbc.CallableStatement.CallableStatementParamInfo
catalogInUse, isFunctionCall, isReadOnlySafeChecked, isReadOnlySafeProcedure, nativeSql, numParameters, parameterList, parameterMap
 
Fields inherited from interface java.sql.ParameterMetaData
parameterModeIn, parameterModeInOut, parameterModeOut, parameterModeUnknown, parameterNoNulls, parameterNullable, parameterNullableUnknown
 
Constructor Summary
CallableStatement.CallableStatementParamInfoJDBC3(CallableStatement.CallableStatementParamInfo paramInfo)
           
CallableStatement.CallableStatementParamInfoJDBC3(java.sql.ResultSet paramTypesRs)
           
 
Method Summary
 boolean isWrapperFor(java.lang.Class iface)
          Returns true if this either implements the interface argument or is directly or indirectly a wrapper for an object that does.
 java.lang.Object unwrap(java.lang.Class iface)
          Returns an object that implements the given interface to allow access to non-standard methods, or standard methods not exposed by the proxy.
 
Methods inherited from class com.mysql.jdbc.CallableStatement.CallableStatementParamInfo
checkBounds, clone, getParameter, getParameter, getParameterClassName, getParameterCount, getParameterMode, getParameterType, getParameterTypeName, getPrecision, getScale, isNullable, isSigned, iterator, numberOfParameters
 
Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface java.sql.ParameterMetaData
getParameterClassName, getParameterCount, getParameterMode, getParameterType, getParameterTypeName, getPrecision, getScale, isNullable, isSigned
 

Constructor Detail

CallableStatement.CallableStatementParamInfoJDBC3

CallableStatement.CallableStatementParamInfoJDBC3(java.sql.ResultSet paramTypesRs)
                                            throws java.sql.SQLException
Throws:
java.sql.SQLException

CallableStatement.CallableStatementParamInfoJDBC3

public CallableStatement.CallableStatementParamInfoJDBC3(CallableStatement.CallableStatementParamInfo paramInfo)
Method Detail

isWrapperFor

public boolean isWrapperFor(java.lang.Class iface)
                     throws java.sql.SQLException
Returns true if this either implements the interface argument or is directly or indirectly a wrapper for an object that does. Returns false otherwise. If this implements the interface then return true, else if this is a wrapper then return the result of recursively calling isWrapperFor on the wrapped object. If this does not implement the interface and is not a wrapper, return false. This method should be implemented as a low-cost operation compared to unwrap so that callers can use this method to avoid expensive unwrap calls that may fail. If this method returns true then calling unwrap with the same argument should succeed.

Specified by:
isWrapperFor in interface java.sql.Wrapper
Parameters:
interfaces - a Class defining an interface.
Returns:
true if this implements the interface or directly or indirectly wraps an object that does.
Throws:
java.sql.SQLException - if an error occurs while determining whether this is a wrapper for an object with the given interface.
Since:
1.6

unwrap

public java.lang.Object unwrap(java.lang.Class iface)
                        throws java.sql.SQLException
Returns an object that implements the given interface to allow access to non-standard methods, or standard methods not exposed by the proxy. The result may be either the object found to implement the interface or a proxy for that object. If the receiver implements the interface then that is the object. If the receiver is a wrapper and the wrapped object implements the interface then that is the object. Otherwise the object is the result of calling unwrap recursively on the wrapped object. If the receiver is not a wrapper and does not implement the interface, then an SQLException is thrown.

Specified by:
unwrap in interface java.sql.Wrapper
Parameters:
iface - A Class defining an interface that the result must implement.
Returns:
an object that implements the interface. May be a proxy for the actual implementing object.
Throws:
java.sql.SQLException - If no object found that implements the interface
Since:
1.6