com.mysql.jdbc
Class MysqlParameterMetadata

java.lang.Object
  extended by com.mysql.jdbc.MysqlParameterMetadata
All Implemented Interfaces:
java.sql.ParameterMetaData, java.sql.Wrapper

public class MysqlParameterMetadata
extends java.lang.Object
implements java.sql.ParameterMetaData


Field Summary
(package private)  ResultSetMetaData metadata
           
(package private)  int parameterCount
           
(package private)  boolean returnSimpleMetadata
           
 
Fields inherited from interface java.sql.ParameterMetaData
parameterModeIn, parameterModeInOut, parameterModeOut, parameterModeUnknown, parameterNoNulls, parameterNullable, parameterNullableUnknown
 
Constructor Summary
MysqlParameterMetadata(Field[] fieldInfo, int parameterCount, ExceptionInterceptor exceptionInterceptor)
           
MysqlParameterMetadata(int count)
          Used for "fake" basic metadata for client-side prepared statements when we don't know the parameter types.
 
Method Summary
 java.lang.String getParameterClassName(int arg0)
           
 int getParameterCount()
           
 int getParameterMode(int arg0)
           
 int getParameterType(int arg0)
           
 java.lang.String getParameterTypeName(int arg0)
           
 int getPrecision(int arg0)
           
 int getScale(int arg0)
           
 int isNullable(int arg0)
           
 boolean isSigned(int arg0)
           
 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 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

returnSimpleMetadata

boolean returnSimpleMetadata

metadata

ResultSetMetaData metadata

parameterCount

int parameterCount
Constructor Detail

MysqlParameterMetadata

MysqlParameterMetadata(Field[] fieldInfo,
                       int parameterCount,
                       ExceptionInterceptor exceptionInterceptor)

MysqlParameterMetadata

MysqlParameterMetadata(int count)
Used for "fake" basic metadata for client-side prepared statements when we don't know the parameter types.

Parameters:
parameterCount -
Method Detail

getParameterCount

public int getParameterCount()
                      throws java.sql.SQLException
Specified by:
getParameterCount in interface java.sql.ParameterMetaData
Throws:
java.sql.SQLException

isNullable

public int isNullable(int arg0)
               throws java.sql.SQLException
Specified by:
isNullable in interface java.sql.ParameterMetaData
Throws:
java.sql.SQLException

isSigned

public boolean isSigned(int arg0)
                 throws java.sql.SQLException
Specified by:
isSigned in interface java.sql.ParameterMetaData
Throws:
java.sql.SQLException

getPrecision

public int getPrecision(int arg0)
                 throws java.sql.SQLException
Specified by:
getPrecision in interface java.sql.ParameterMetaData
Throws:
java.sql.SQLException

getScale

public int getScale(int arg0)
             throws java.sql.SQLException
Specified by:
getScale in interface java.sql.ParameterMetaData
Throws:
java.sql.SQLException

getParameterType

public int getParameterType(int arg0)
                     throws java.sql.SQLException
Specified by:
getParameterType in interface java.sql.ParameterMetaData
Throws:
java.sql.SQLException

getParameterTypeName

public java.lang.String getParameterTypeName(int arg0)
                                      throws java.sql.SQLException
Specified by:
getParameterTypeName in interface java.sql.ParameterMetaData
Throws:
java.sql.SQLException

getParameterClassName

public java.lang.String getParameterClassName(int arg0)
                                       throws java.sql.SQLException
Specified by:
getParameterClassName in interface java.sql.ParameterMetaData
Throws:
java.sql.SQLException

getParameterMode

public int getParameterMode(int arg0)
                     throws java.sql.SQLException
Specified by:
getParameterMode in interface java.sql.ParameterMetaData
Throws:
java.sql.SQLException

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