AS400JDBCParameterMetaData

java.lang.Object
- com.ibm.as400.access.AS400JDBCParameterMetaData

All Implemented Interfaces:

java.sql.ParameterMetaData, java.sql.Wrapper
```
public class AS400JDBCParameterMetaData
extends java.lang.Object
implements java.sql.ParameterMetaData
```
The AS400JDBCParameterMetaData class can be used to retrieve information about the parameters of a PreparedStatement. Use PreparedStatement.getParameterMetaData() to create new ParameterMetaData objects.

Field Summary
- Fields inherited from interface java.sql.ParameterMetaData
  parameterModeIn, parameterModeInOut, parameterModeOut, parameterModeUnknown, parameterNoNulls, parameterNullable, parameterNullableUnknown

Method Summary

Methods
Modifier and Type	Method and Description
`java.lang.String`	`getParameterClassName(int parameterIndex)` Returns the fully-qualified name of the Java class of the specified parameter.
`int`	`getParameterCount()` Returns the number of parameters in this ParameterMetaData object.
`int`	`getParameterMode(int parameterIndex)` Returns the mode of the specified parameter or if that information is unknown.
`int`	`getParameterType(int parameterIndex)` Returns the SQL type of the specified parameter.
`java.lang.String`	`getParameterTypeName(int parameterIndex)` Returns the database-specific type name of the specified parameter.
`int`	`getPrecision(int parameterIndex)` Returns the number of decimal digits of the specified parameter.
`int`	`getScale(int parameterIndex)` Returns the number of digits to the right of the decimal point of the specified parameter.
`protected java.lang.String[]`	`getValidWrappedList()`
`int`	`isNullable(int parameterIndex)` Returns if the specified parameter can be null or that information is unknown.
`boolean`	`isSigned(int parameterIndex)` Returns if values can be signed numbers for the specified parameter.
`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.
`<T> T`	`unwrap(java.lang.Class<T> 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

Methods inherited from interface java.sql.Wrapper
isWrapperFor, unwrap

- Method Detail
  - getParameterClassName
```
public java.lang.String getParameterClassName(int parameterIndex)
                                       throws java.sql.SQLException
```
    Returns the fully-qualified name of the Java class of the specified parameter.
    
    Specified by:
    
    getParameterClassName in interface java.sql.ParameterMetaData
    
    Parameters:
    parameterIndex - The parameter index (1-based).
    
    Returns:
    The fully-qualified name of the Java class.
    
    Throws:
    
    java.sql.SQLException - If the prepared statement is not open.
  - getParameterCount
```
public int getParameterCount()
                      throws java.sql.SQLException
```
    Returns the number of parameters in this ParameterMetaData object.
    
    Specified by:
    
    getParameterCount in interface java.sql.ParameterMetaData
    
    Returns:
    The number of parameters in the ParameterMetaData object.
    
    Throws:
    
    java.sql.SQLException - If the prepared statement is not open.
  - getParameterMode
```
public int getParameterMode(int parameterIndex)
                     throws java.sql.SQLException
```
    Returns the mode of the specified parameter or if that information is unknown.
    
    Specified by:
    
    getParameterMode in interface java.sql.ParameterMetaData
    
    Parameters:
    parameterIndex - The parameter index (1-based).
    
    Returns:
    The mode of the parameter. Valid values are ParameterMetaData.parameterModeIn, ParameterMetaData.parameterModeOut, ParameterMetaData.parameterModeInOut, and ParameterMetaData.parameterModeUnknown.
    
    Throws:
    
    java.sql.SQLException - If the prepared statement is not open.
  - getParameterType
```
public int getParameterType(int parameterIndex)
                     throws java.sql.SQLException
```
    Returns the SQL type of the specified parameter.
    
    Specified by:
    
    getParameterType in interface java.sql.ParameterMetaData
    
    Parameters:
    parameterIndex - The parameter index (1-based).
    
    Returns:
    The SQL type of the parameter.
    
    Throws:
    
    java.sql.SQLException - If the prepared statement is not open.
  - getParameterTypeName
```
public java.lang.String getParameterTypeName(int parameterIndex)
                                      throws java.sql.SQLException
```
    Returns the database-specific type name of the specified parameter.
    
    Specified by:
    
    getParameterTypeName in interface java.sql.ParameterMetaData
    
    Parameters:
    parameterIndex - The parameter index (1-based).
    
    Returns:
    The type name of the parameter.
    
    Throws:
    
    java.sql.SQLException - If the prepared statement is not open.
  - getPrecision
```
public int getPrecision(int parameterIndex)
                 throws java.sql.SQLException
```
    Returns the number of decimal digits of the specified parameter.
    
    Specified by:
    
    getPrecision in interface java.sql.ParameterMetaData
    
    Parameters:
    parameterIndex - The parameter index (1-based).
    
    Returns:
    The precision of the parameter.
    
    Throws:
    
    java.sql.SQLException - If the prepared statement is not open.
  - getScale
```
public int getScale(int parameterIndex)
             throws java.sql.SQLException
```
    Returns the number of digits to the right of the decimal point of the specified parameter.
    
    Specified by:
    
    getScale in interface java.sql.ParameterMetaData
    
    Parameters:
    parameterIndex - The parameter index (1-based).
    
    Returns:
    The scale of the parameter.
    
    Throws:
    
    java.sql.SQLException - If the prepared statement is not open.
  - isNullable
```
public int isNullable(int parameterIndex)
               throws java.sql.SQLException
```
    Returns if the specified parameter can be null or that information is unknown.
    
    Specified by:
    
    isNullable in interface java.sql.ParameterMetaData
    
    Parameters:
    parameterIndex - The parameter index (1-based).
    
    Returns:
    Returns if the parameter can be null. The valid values are ParameterMetaData.parameterNoNulls, ParameterMetaData.parameterNullable, and ParameterMetaData.parameterNullableUnknown.
    
    Throws:
    
    java.sql.SQLException - If the prepared statement is not open.
  - isSigned
```
public boolean isSigned(int parameterIndex)
                 throws java.sql.SQLException
```
    Returns if values can be signed numbers for the specified parameter.
    
    Specified by:
    
    isSigned in interface java.sql.ParameterMetaData
    
    Parameters:
    parameterIndex - The parameter index (1-based).
    
    Returns:
    Returns true if values for the specified parameter can be signed numbers, false otherwise.
    
    Throws:
    
    java.sql.SQLException - If the prepared statement is not open.
  - getValidWrappedList
```
protected java.lang.String[] getValidWrappedList()
```
  - 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:
    iface - 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.
  - unwrap
```
public <T> T unwrap(java.lang.Class<T> 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. If the receiver implements the interface then the result is the receiver or a proxy for the receiver. If the receiver is a wrapper and the wrapped object implements the interface then the result is the wrapped object or a proxy for the wrapped object. Otherwise return the the result of calling unwrap recursively on the wrapped object or a proxy for that result. 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

Fields inherited from interface java.sql.ParameterMetaData

Methods inherited from class java.lang.Object

Methods inherited from interface java.sql.Wrapper

getParameterClassName

getParameterCount

getParameterMode

getParameterType

getParameterTypeName

getPrecision

getScale

isNullable

isSigned

getValidWrappedList

isWrapperFor

unwrap