com.mysql.jdbc
Class CallableStatement.CallableStatementParamInfoJDBC3
java.lang.Object
com.mysql.jdbc.CallableStatement.CallableStatementParamInfo
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?)
Fields inherited from interface java.sql.ParameterMetaData |
parameterModeIn, parameterModeInOut, parameterModeOut, parameterModeUnknown, parameterNoNulls, parameterNullable, parameterNullableUnknown |
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 |
CallableStatement.CallableStatementParamInfoJDBC3
CallableStatement.CallableStatementParamInfoJDBC3(java.sql.ResultSet paramTypesRs)
throws java.sql.SQLException
- Throws:
java.sql.SQLException
CallableStatement.CallableStatementParamInfoJDBC3
public CallableStatement.CallableStatementParamInfoJDBC3(CallableStatement.CallableStatementParamInfo paramInfo)
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