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SUMMARY: INNER | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Object | +--org.hsqldb.jdbcStatement | +--org.hsqldb.jdbcPreparedStatement
In HSQL Database Engine, the class jdbcPreparedStatement implements both the
PreparedStatement and the CallableStatement interfaces.
CallableStatement is used to execute SQL stored procedures,
There are currently no stored procedures in HSQL Database Engine.
The reason is that stored procedures are currently extremely
proprietary. If a stored procedure was made for one database type,
it will not work in a database of another vendor.
The functions for working with OUT parameters are not implemented
because there are no statements that returns OUT parameters. All
statements in HSQL Database Engine returns a ResultSet or a Update Count.
For other databases it may be required to use OUT parameters
when calling stored procedures or vendor specific statements.
PreparedStatement is used to execute SQL statement with parameters.
A PreparedStatement represents a precompiled SQL statement.
A SQL statement is pre-compiled and stored in a PreparedStatement object. This object can then be used to execute this statement multiple times.
Note: The setXXX methods for setting IN parameter values
must specify types that are compatible with the defined SQL type of
the input parameter. For instance, if the IN parameter has SQL type
Integer, then the method setInt
should be used.
If arbitrary parameter type conversions are required, the method
setObject
should be used with a target SQL type.
Example of setting a parameter; con
is an active connection
PreparedStatement pstmt = con.prepareStatement("UPDATE EMPLOYEES
SET SALARY = ? WHERE ID = ?");
pstmt.setBigDecimal(1, 153833.00)
pstmt.setInt(2, 110592)
The interface CallableStatement is used to execute SQL stored procedures. JDBC provides a stored procedure SQL escape that allows stored procedures to be called in a standard way for all RDBMSs. This escape syntax has one form that includes a result parameter and one that does not. If used, the result parameter must be registered as an OUT parameter. The other parameters can be used for input, output or both. Parameters are referred to sequentially, by number. The first parameter is 1.
{?= call <procedure-name>[<arg1>,<arg2>, ...]} {call <procedure-name>[<arg1>,<arg2>, ...]}
IN parameter values are set using the set methods inherited from
PreparedStatement
. The type of all OUT parameters must be
registered prior to executing the stored procedure; their values
are retrieved after execution via the get
methods provided here.
A CallableStatement
can return one ResultSet
or
multiple ResultSet
objets. Multiple
ResultSet
objects are handled using operations
inherited from Statement
.
For maximum portability, a call's ResultSet
objects and
update counts should be processed prior to getting the values of output
parameters.
jdbcResultSet
Constructor Summary | |
(package private) |
jdbcPreparedStatement(jdbcConnection c,
java.lang.String s)
Constructor declaration |
Method Summary | |
void |
addBatch()
JDBC 2.0 Adds a set of parameters to the batch. |
void |
clearParameters()
Clears the current parameter values immediately. |
boolean |
execute()
Executes any kind of SQL statement. |
java.sql.ResultSet |
executeQuery()
Executes the SQL query in this PreparedStatement object
and returns the result set generated by the query. |
int |
executeUpdate()
Executes the SQL INSERT, UPDATE or DELETE statement in this PreparedStatement object. |
java.sql.Array |
getArray(int i)
Method declaration |
java.math.BigDecimal |
getBigDecimal(int parameterIndex)
Method declaration |
java.math.BigDecimal |
getBigDecimal(int parameterIndex,
int scale)
Method declaration |
java.sql.Blob |
getBlob(int i)
Method declaration |
boolean |
getBoolean(int parameterIndex)
Gets the value of a JDBC BIT parameter as a boolean
in the Java programming language. |
byte |
getByte(int parameterIndex)
Method declaration |
byte[] |
getBytes(int parameterIndex)
Method declaration |
java.sql.Clob |
getClob(int i)
Method declaration |
java.sql.Date |
getDate(int parameterIndex)
Method declaration |
java.sql.Date |
getDate(int parameterIndex,
java.util.Calendar cal)
Method declaration |
double |
getDouble(int parameterIndex)
Method declaration |
float |
getFloat(int parameterIndex)
Method declaration |
int |
getInt(int parameterIndex)
Method declaration |
long |
getLong(int parameterIndex)
Method declaration |
java.sql.ResultSetMetaData |
getMetaData()
JDBC 2.0 Gets the number, types and properties of a ResultSet's columns. |
java.lang.Object |
getObject(int parameterIndex)
Method declaration |
java.lang.Object |
getObject(int i,
java.util.Map map)
Method declaration |
java.sql.Ref |
getRef(int i)
JDBC 2.0 Sets a REF(<structured-type>) parameter. |
short |
getShort(int parameterIndex)
Method declaration |
java.lang.String |
getString(int parameterIndex)
Retrieves the value of a JDBC CHAR , VARCHAR ,
or LONGVARCHAR parameter as a String in
the Java programming language. |
java.sql.Time |
getTime(int parameterIndex)
Method declaration |
java.sql.Time |
getTime(int parameterIndex,
java.util.Calendar cal)
Method declaration |
java.sql.Timestamp |
getTimestamp(int parameterIndex)
Method declaration |
java.sql.Timestamp |
getTimestamp(int parameterIndex,
java.util.Calendar cal)
Method declaration |
void |
registerOutParameter(int parameterIndex,
int sqlType)
Registers the OUT parameter in ordinal position parameterIndex to the JDBC type
sqlType . |
void |
registerOutParameter(int parameterIndex,
int sqlType,
int scale)
Registers the parameter in ordinal position parameterIndex to be of JDBC type
sqlType . |
void |
registerOutParameter(int paramIndex,
int sqlType,
java.lang.String typeName)
Method declaration |
void |
setArray(int i,
java.sql.Array x)
JDBC 2.0 Sets an Array parameter. |
void |
setAsciiStream(int parameterIndex,
java.io.InputStream x,
int length)
Sets the designated parameter to the given input stream, which will have the specified number of bytes. |
void |
setBigDecimal(int parameterIndex,
java.math.BigDecimal x)
Sets the designated parameter to a java.lang.BigDecimal value. |
void |
setBinaryStream(int parameterIndex,
java.io.InputStream x,
int length)
Sets the designated parameter to the given input stream, which will have the specified number of bytes. |
void |
setBlob(int i,
java.sql.Blob x)
JDBC 2.0 Sets a BLOB parameter. |
void |
setBoolean(int parameterIndex,
boolean x)
Sets the designated parameter to a Java boolean value. |
void |
setByte(int parameterIndex,
byte x)
Sets the designated parameter to a Java byte value. |
void |
setBytes(int parameterIndex,
byte[] x)
Sets the designated parameter to a Java array of bytes. |
void |
setCharacterStream(int parameterIndex,
java.io.Reader reader,
int length)
JDBC 2.0 Sets the designated parameter to the given Reader
object, which is the given number of characters long. |
void |
setClob(int i,
java.sql.Clob x)
JDBC 2.0 Sets a CLOB parameter. |
void |
setDate(int parameterIndex,
java.sql.Date x)
Sets the designated parameter to a java.sql.Date value. |
void |
setDate(int parameterIndex,
java.sql.Date x,
java.util.Calendar cal)
JDBC 2.0 Sets the designated parameter to a java.sql.Date value, using the given Calendar object. |
void |
setDouble(int parameterIndex,
double x)
Sets the designated parameter to a Java double value. |
void |
setFloat(int parameterIndex,
float x)
Sets the designated parameter to a Java float value. |
void |
setInt(int parameterIndex,
int x)
Sets the designated parameter to a Java int value. |
void |
setLong(int parameterIndex,
long x)
Sets the designated parameter to a Java long value. |
void |
setNull(int parameterIndex,
int sqlType)
Sets the designated parameter to SQL NULL. |
void |
setNull(int parameterIndex,
int sqlType,
java.lang.String typeName)
JDBC 2.0 Sets the designated parameter to SQL NULL. |
void |
setObject(int parameterIndex,
java.lang.Object x)
Sets the value of a parameter using an object; use the java.lang equivalent objects for integral values. |
void |
setObject(int parameterIndex,
java.lang.Object x,
int type)
Sets the value of the designated parameter with the given object. |
void |
setObject(int i,
java.lang.Object x,
int type,
int scale)
Sets the value of a parameter using an object. |
void |
setRef(int i,
java.sql.Ref x)
JDBC 2.0 Sets a REF(<structured-type>) parameter. |
void |
setShort(int parameterIndex,
short x)
Sets the designated parameter to a Java short value. |
void |
setString(int parameterIndex,
java.lang.String x)
Sets the designated parameter to a Java String value. |
void |
setTime(int parameterIndex,
java.sql.Time x)
Sets the designated parameter to a java.sql.Time value. |
void |
setTime(int parameterIndex,
java.sql.Time x,
java.util.Calendar cal)
JDBC 2.0 Sets the designated parameter to a java.sql.Time value, using the given Calendar object. |
void |
setTimestamp(int parameterIndex,
java.sql.Timestamp x)
Sets the designated parameter to a java.sql.Timestamp value. |
void |
setTimestamp(int parameterIndex,
java.sql.Timestamp x,
java.util.Calendar cal)
JDBC 2.0 Sets the designated parameter to a java.sql.Timestamp value, using the given Calendar object. |
void |
setUnicodeStream(int paramIndex,
java.io.InputStream x,
int length)
Deprecated. |
boolean |
wasNull()
Indicates whether or not the last OUT parameter read had the value of SQL NULL. |
Methods inherited from class org.hsqldb.jdbcStatement |
addBatch,
cancel,
clearBatch,
clearWarnings,
close,
execute,
executeBatch,
executeQuery,
executeUpdate,
getConnection,
getFetchDirection,
getFetchSize,
getMaxFieldSize,
getMaxRows,
getMoreResults,
getQueryTimeout,
getResultSet,
getResultSetConcurrency,
getResultSetType,
getUpdateCount,
getWarnings,
setCursorName,
setEscapeProcessing,
setFetchDirection,
setFetchSize,
setMaxFieldSize,
setMaxRows,
setQueryTimeout |
Methods inherited from class java.lang.Object |
|
Constructor Detail |
jdbcPreparedStatement(jdbcConnection c, java.lang.String s)
c
- s
- Method Detail |
public java.sql.ResultSet executeQuery() throws java.sql.SQLException
PreparedStatement
object
and returns the result set generated by the query.public int executeUpdate() throws java.sql.SQLException
PreparedStatement
object.
In addition,
SQL statements that return nothing, such as SQL DDL statements,
can be executed.public void setNull(int parameterIndex, int sqlType) throws java.sql.SQLException
Note: You must specify the parameter's SQL type.
parameterIndex
- the first parameter is 1, the second is 2, ...sqlType
- the SQL type code defined in java.sql.Typespublic void setBoolean(int parameterIndex, boolean x) throws java.sql.SQLException
parameterIndex
- the first parameter is 1, the second is 2, ...x
- the parameter valuepublic void setByte(int parameterIndex, byte x) throws java.sql.SQLException
parameterIndex
- the first parameter is 1, the second is 2, ...x
- the parameter valuepublic void setShort(int parameterIndex, short x) throws java.sql.SQLException
parameterIndex
- the first parameter is 1, the second is 2, ...x
- the parameter valuepublic void setInt(int parameterIndex, int x) throws java.sql.SQLException
parameterIndex
- the first parameter is 1, the second is 2, ...x
- the parameter valuepublic void setLong(int parameterIndex, long x) throws java.sql.SQLException
parameterIndex
- the first parameter is 1, the second is 2, ...x
- the parameter valuepublic void setFloat(int parameterIndex, float x) throws java.sql.SQLException
parameterIndex
- the first parameter is 1, the second is 2, ...x
- the parameter valuepublic void setDouble(int parameterIndex, double x) throws java.sql.SQLException
parameterIndex
- the first parameter is 1, the second is 2, ...x
- the parameter valuepublic void setBigDecimal(int parameterIndex, java.math.BigDecimal x) throws java.sql.SQLException
parameterIndex
- the first parameter is 1, the second is 2, ...x
- the parameter valuepublic void setString(int parameterIndex, java.lang.String x) throws java.sql.SQLException
parameterIndex
- the first parameter is 1, the second is 2, ...x
- the parameter valuepublic void setBytes(int parameterIndex, byte[] x) throws java.sql.SQLException
parameterIndex
- the first parameter is 1, the second is 2, ...x
- the parameter valuepublic void setDate(int parameterIndex, java.sql.Date x) throws java.sql.SQLException
parameterIndex
- the first parameter is 1, the second is 2, ...x
- the parameter valuepublic void setTime(int parameterIndex, java.sql.Time x) throws java.sql.SQLException
parameterIndex
- the first parameter is 1, the second is 2, ...x
- the parameter valuepublic void setTimestamp(int parameterIndex, java.sql.Timestamp x) throws java.sql.SQLException
parameterIndex
- the first parameter is 1, the second is 2, ...x
- the parameter valuepublic void setAsciiStream(int parameterIndex, java.io.InputStream x, int length) throws java.sql.SQLException
Note: This stream object can either be a standard Java stream object or your own subclass that implements the standard interface.
parameterIndex
- the first parameter is 1, the second is 2, ...x
- the Java input stream that contains the ASCII parameter valuelength
- the number of bytes in the streampublic void setUnicodeStream(int paramIndex, java.io.InputStream x, int length) throws java.sql.SQLException
Note: This stream object can either be a standard Java stream object or your own subclass that implements the standard interface.
parameterIndex
- the first parameter is 1, the second is 2, ...x
- the java input stream which contains the
UNICODE parameter valuelength
- the number of bytes in the streampublic void setBinaryStream(int parameterIndex, java.io.InputStream x, int length) throws java.sql.SQLException
Note: This stream object can either be a standard Java stream object or your own subclass that implements the standard interface.
parameterIndex
- the first parameter is 1, the second is 2, ...x
- the java input stream which contains the binary parameter valuelength
- the number of bytes in the streampublic void clearParameters()
In general, parameter values remain in force for repeated use of a Statement. Setting a parameter value automatically clears its previous value. However, in some cases it is useful to immediately release the resources used by the current parameter values; this can be done by calling clearParameters.
public void setObject(int i, java.lang.Object x, int type, int scale) throws java.sql.SQLException
Sets the value of a parameter using an object. The second argument must be an object type; for integral values, the java.lang equivalent objects should be used.
The given Java object will be converted to the targetSqlType
before being sent to the database.
If the object has a custom mapping (is of a class implementing SQLData),
the JDBC driver should call its method writeSQL
to write it
to the SQL data stream.
If, on the other hand, the object is of a class implementing
Ref, Blob, Clob, Struct,
or Array, the driver should pass it to the database as a value of the
corresponding SQL type.
Note that this method may be used to pass datatabase- specific abstract data types.
parameterIndex
- the first parameter is 1, the second is 2, ...x
- the object containing the input parameter valuetargetSqlType
- the SQL type (as defined in java.sql.Types) to be
sent to the database. The scale argument may further qualify this type.scale
- for java.sql.Types.DECIMAL or java.sql.Types.NUMERIC types,
this is the number of digits after the decimal point. For all other
types, this value will be ignored.public void setObject(int parameterIndex, java.lang.Object x, int type) throws java.sql.SQLException
parameterIndex
- the first parameter is 1, the second is 2, ...x
- the object containing the input parameter valuetargetSqlType
- the SQL type (as defined in java.sql.Types) to be
sent to the databasepublic void setObject(int parameterIndex, java.lang.Object x) throws java.sql.SQLException
Sets the value of a parameter using an object; use the java.lang equivalent objects for integral values.
The JDBC specification specifies a standard mapping from Java Object types to SQL types. The given argument java object will be converted to the corresponding SQL type before being sent to the database.
Note that this method may be used to pass datatabase-
specific abstract data types, by using a Driver-specific Java
type.
If the object is of a class implementing SQLData,
the JDBC driver should call its method writeSQL
to write it
to the SQL data stream.
If, on the other hand, the object is of a class implementing
Ref, Blob, Clob, Struct,
or Array, then the driver should pass it to the database as a value of the
corresponding SQL type.
This method throws an exception if there is an ambiguity, for example, if
the object is of a class implementing more than one of those interfaces.
In HSQL Database Engine, this function checks if the object is of one of the Java SQL Types (Integer, String, Double,...) and if yes, the function will call the apropriate setXXX function. If an object should be inserted with data type 'Object' (OTHER), then the function setObject(i,x,Types.OTHER) should be called.
parameterIndex
- the first parameter is 1, the second is 2, ...x
- the object containing the input parameter valuepublic boolean execute() throws java.sql.SQLException
Statement.execute(java.lang.String)
public void registerOutParameter(int parameterIndex, int sqlType) throws java.sql.SQLException
parameterIndex
to the JDBC type
sqlType
. All OUT parameters must be registered
before a stored procedure is executed.
The JDBC type specified by sqlType
for an OUT
parameter determines the Java type that must be used
in the get
method to read the value of that parameter.
If the JDBC type expected to be returned to this output parameter
is specific to this particular database, sqlType
should be java.sql.Types.OTHER
. The method
getObject(int)
retrieves the value.
parameterIndex
- the first parameter is 1, the second is 2,
and so onsqlType
- the JDBC type code defined by java.sql.Types
.
If the parameter is of type Numeric or Decimal, the version of
registerOutParameter
that accepts a scale value
should be used.public void registerOutParameter(int parameterIndex, int sqlType, int scale) throws java.sql.SQLException
parameterIndex
to be of JDBC type
sqlType
. This method must be called
before a stored procedure is executed.
The JDBC type specified by sqlType
for an OUT
parameter determines the Java type that must be used
in the get
method to read the value of that parameter.
This version of registerOutParameter
should be
used when the parameter is of JDBC type NUMERIC
or DECIMAL
.
parameterIndex
- the first parameter is 1, the second is 2,
and so onsqlType
- SQL type code defined by java.sql.Types
.scale
- the desired number of digits to the right of the
decimal point. It must be greater than or equal to zero.public boolean wasNull() throws java.sql.SQLException
get
method; otherwise, there is no value to use
in determining whether it is null
or not.true
if the last parameter read was SQL NULL;
false
otherwise.public java.lang.String getString(int parameterIndex) throws java.sql.SQLException
CHAR
, VARCHAR
,
or LONGVARCHAR
parameter as a String
in
the Java programming language.
For the fixed-length type JDBC CHAR, the String
object
returned has exactly the same value the JDBC CHAR value had in the
database, including any padding added by the database.
parameterIndex
- the first parameter is 1, the second is 2,
and so onnull
.public boolean getBoolean(int parameterIndex) throws java.sql.SQLException
boolean
in the Java programming language.parameterIndex
- the first parameter is 1, the second is 2,
and so onfalse
.public byte getByte(int parameterIndex) throws java.sql.SQLException
parameterIndex
- public short getShort(int parameterIndex) throws java.sql.SQLException
parameterIndex
- public int getInt(int parameterIndex) throws java.sql.SQLException
parameterIndex
- public long getLong(int parameterIndex) throws java.sql.SQLException
parameterIndex
- public float getFloat(int parameterIndex) throws java.sql.SQLException
parameterIndex
- public double getDouble(int parameterIndex) throws java.sql.SQLException
parameterIndex
- public java.math.BigDecimal getBigDecimal(int parameterIndex, int scale) throws java.sql.SQLException
parameterIndex
- scale
- public byte[] getBytes(int parameterIndex) throws java.sql.SQLException
parameterIndex
- public java.sql.Date getDate(int parameterIndex) throws java.sql.SQLException
parameterIndex
- public java.sql.Time getTime(int parameterIndex) throws java.sql.SQLException
parameterIndex
- public java.sql.Timestamp getTimestamp(int parameterIndex) throws java.sql.SQLException
parameterIndex
- public java.lang.Object getObject(int parameterIndex) throws java.sql.SQLException
parameterIndex
- public java.math.BigDecimal getBigDecimal(int parameterIndex) throws java.sql.SQLException
parameterIndex
- public java.lang.Object getObject(int i, java.util.Map map) throws java.sql.SQLException
i
- map
- public java.sql.Ref getRef(int i) throws java.sql.SQLException
i
- the first parameter is 1, the second is 2, ...x
- an object representing data of an SQL REF Typepublic java.sql.Blob getBlob(int i) throws java.sql.SQLException
i
- public java.sql.Clob getClob(int i) throws java.sql.SQLException
i
- public java.sql.Array getArray(int i) throws java.sql.SQLException
i
- public java.sql.Date getDate(int parameterIndex, java.util.Calendar cal) throws java.sql.SQLException
parameterIndex
- cal
- public java.sql.Time getTime(int parameterIndex, java.util.Calendar cal) throws java.sql.SQLException
parameterIndex
- cal
- public java.sql.Timestamp getTimestamp(int parameterIndex, java.util.Calendar cal) throws java.sql.SQLException
parameterIndex
- cal
- public void registerOutParameter(int paramIndex, int sqlType, java.lang.String typeName) throws java.sql.SQLException
paramIndex
- sqlType
- typeName
- public void addBatch() throws java.sql.SQLException
Statement.addBatch(java.lang.String)
public void setDate(int parameterIndex, java.sql.Date x, java.util.Calendar cal) throws java.sql.SQLException
Calendar
object. The driver uses
the Calendar
object to construct an SQL DATE,
which the driver then sends to the database. With a
a Calendar
object, the driver can calculate the date
taking into account a custom timezone and locale. If no
Calendar
object is specified, the driver uses the default
timezone and locale.parameterIndex
- the first parameter is 1, the second is 2, ...x
- the parameter valuecal
- the Calendar
object the driver will use
to construct the datepublic void setTime(int parameterIndex, java.sql.Time x, java.util.Calendar cal) throws java.sql.SQLException
Calendar
object. The driver uses
the Calendar
object to construct an SQL TIME,
which the driver then sends to the database. With a
a Calendar
object, the driver can calculate the time
taking into account a custom timezone and locale. If no
Calendar
object is specified, the driver uses the default
timezone and locale.parameterIndex
- the first parameter is 1, the second is 2, ...x
- the parameter valuecal
- the Calendar
object the driver will use
to construct the timepublic void setTimestamp(int parameterIndex, java.sql.Timestamp x, java.util.Calendar cal) throws java.sql.SQLException
Calendar
object. The driver uses
the Calendar
object to construct an SQL TIMESTAMP,
which the driver then sends to the database. With a
a Calendar
object, the driver can calculate the timestamp
taking into account a custom timezone and locale. If no
Calendar
object is specified, the driver uses the default
timezone and locale.parameterIndex
- the first parameter is 1, the second is 2, ...x
- the parameter valuecal
- the Calendar
object the driver will use
to construct the timestamppublic void setNull(int parameterIndex, int sqlType, java.lang.String typeName) throws java.sql.SQLException
Note: To be portable, applications must give the SQL type code and the fully-qualified SQL type name when specifying a NULL user-defined or REF parameter. In the case of a user-named type the name is the type name of the parameter itself. For a REF parameter the name is the type name of the referenced type. If a JDBC driver does not need the type code or type name information, it may ignore it. Although it is intended for user-named and Ref parameters, this method may be used to set a null parameter of any JDBC type. If the parameter does not have a user-named or REF type, the given typeName is ignored.
parameterIndex
- the first parameter is 1, the second is 2, ...sqlType
- a value from java.sql.TypestypeName
- the fully-qualified name of an SQL user-named type,
ignored if the parameter is not a user-named type or REFpublic void setCharacterStream(int parameterIndex, java.io.Reader reader, int length) throws java.sql.SQLException
Reader
object, which is the given number of characters long.
When a very large UNICODE value is input to a LONGVARCHAR
parameter, it may be more practical to send it via a
java.io.Reader. JDBC will read the data from the stream
as needed, until it reaches end-of-file. The JDBC driver will
do any necessary conversion from UNICODE to the database char format.
Note: This stream object can either be a standard Java stream object or your own subclass that implements the standard interface.
parameterIndex
- the first parameter is 1, the second is 2, ...reader
- the java reader which contains the UNICODE datalength
- the number of characters in the streampublic void setRef(int i, java.sql.Ref x) throws java.sql.SQLException
i
- the first parameter is 1, the second is 2, ...x
- an object representing data of an SQL REF Typepublic void setBlob(int i, java.sql.Blob x) throws java.sql.SQLException
i
- the first parameter is 1, the second is 2, ...x
- an object representing a BLOBpublic void setClob(int i, java.sql.Clob x) throws java.sql.SQLException
i
- the first parameter is 1, the second is 2, ...x
- an object representing a CLOBpublic void setArray(int i, java.sql.Array x) throws java.sql.SQLException
i
- the first parameter is 1, the second is 2, ...x
- an object representing an SQL arraypublic java.sql.ResultSetMetaData getMetaData() throws java.sql.SQLException
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SUMMARY: INNER | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |