java.sql.ParameterMetaData
, java.sql.Wrapper
public class EmbedParameterSetMetaData
extends java.lang.Object
implements java.sql.ParameterMetaData
Modifier and Type | Field | Description |
---|---|---|
private int |
paramCount |
|
private ParameterValueSet |
pvs |
|
private DataTypeDescriptor[] |
types |
Modifier | Constructor | Description |
---|---|---|
protected |
EmbedParameterSetMetaData(ParameterValueSet pvs,
DataTypeDescriptor[] types) |
Modifier and Type | Method | Description |
---|---|---|
private void |
checkPosition(int parameterIndex) |
|
java.lang.String |
getParameterClassName(int param) |
Retrieves the fully-qualified name of the Java class whose instances should be
passed to the method PreparedStatement.setObject.
|
int |
getParameterCount() |
Retrieves the number of parameters in the PreparedStatement object for which
this ParameterMetaData object contains information.
|
int |
getParameterMode(int param) |
Retrieves the designated parameter's mode.
|
int |
getParameterType(int param) |
Retrieves the designated parameter's SQL type.
|
java.lang.String |
getParameterTypeName(int param) |
Retrieves the designated parameter's database-specific type name.
|
int |
getPrecision(int param) |
Retrieves the designated parameter's number of decimal digits.
|
int |
getScale(int param) |
Retrieves the designated parameter's number of digits to right of the decimal point.
|
int |
isNullable(int param) |
Retrieves whether null values are allowed in the designated parameter.
|
boolean |
isSigned(int param) |
Retrieves whether values for the designated parameter can be signed numbers.
|
boolean |
isWrapperFor(java.lang.Class<?> iface) |
Returns false unless
iface is implemented. |
<T> T |
unwrap(java.lang.Class<T> iface) |
Returns
this if this class implements the specified interface. |
private final ParameterValueSet pvs
private final DataTypeDescriptor[] types
private final int paramCount
protected EmbedParameterSetMetaData(ParameterValueSet pvs, DataTypeDescriptor[] types)
public int getParameterCount()
getParameterCount
in interface java.sql.ParameterMetaData
public int isNullable(int param) throws java.sql.SQLException
isNullable
in interface java.sql.ParameterMetaData
param
- - the first parameter is 1, the second is 2, ...java.sql.SQLException
- if a database access error occurspublic boolean isSigned(int param) throws java.sql.SQLException
isSigned
in interface java.sql.ParameterMetaData
param
- - the first parameter is 1, the second is 2, ...java.sql.SQLException
- if a database access error occurspublic int getPrecision(int param) throws java.sql.SQLException
getPrecision
in interface java.sql.ParameterMetaData
param
- - the first parameter is 1, the second is 2, ...java.sql.SQLException
- if a database access error occurspublic int getScale(int param) throws java.sql.SQLException
getScale
in interface java.sql.ParameterMetaData
param
- - the first parameter is 1, the second is 2, ...java.sql.SQLException
- if a database access error occurspublic int getParameterType(int param) throws java.sql.SQLException
getParameterType
in interface java.sql.ParameterMetaData
param
- - the first parameter is 1, the second is 2, ...java.sql.SQLException
- if a database access error occurspublic java.lang.String getParameterTypeName(int param) throws java.sql.SQLException
getParameterTypeName
in interface java.sql.ParameterMetaData
param
- - the first parameter is 1, the second is 2, ...java.sql.SQLException
- if a database access error occurspublic java.lang.String getParameterClassName(int param) throws java.sql.SQLException
getParameterClassName
in interface java.sql.ParameterMetaData
param
- - the first parameter is 1, the second is 2, ...java.sql.SQLException
- if a database access error occurspublic int getParameterMode(int param) throws java.sql.SQLException
getParameterMode
in interface java.sql.ParameterMetaData
param
- - the first parameter is 1, the second is 2, ...java.sql.SQLException
- if a database access error occursprivate void checkPosition(int parameterIndex) throws java.sql.SQLException
java.sql.SQLException
public boolean isWrapperFor(java.lang.Class<?> iface) throws java.sql.SQLException
iface
is implemented.isWrapperFor
in interface java.sql.Wrapper
iface
- a class defining an interfacejava.sql.SQLException
- if an error occurs while determining whether this is
a wrapper for an object with the given interface.public <T> T unwrap(java.lang.Class<T> iface) throws java.sql.SQLException
this
if this class implements the specified interface.unwrap
in interface java.sql.Wrapper
iface
- a class defining an interfacejava.sql.SQLException
- if no object is found that implements the interfaceApache Derby V10.14 Internals - Copyright © 2004,2018 The Apache Software Foundation. All Rights Reserved.