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java.lang.Object | +--com.ibm.ims.db.DLIStatement
The object used for executing a static SQL statement and obtaining the results produced by it.
Only one ResultSet per Statement can be open at any point in
time. Therefore, if the reading of one ResultSet is interleaved
with the reading of another, each must have been generated by
different Statements. All statement execute
methods implicitly
close a statment's current ResultSet if an open one exists.
Connection.createStatement()
,
ResultSet
Constructor Summary | |
protected |
DLIStatement(java.sql.Connection connection,
DLIConnection dliConnection)
Creates a DLIStatement Defaults to construction of type FORWARD_ONLY, and concurrency READ_ONLY. |
|
DLIStatement(java.sql.Connection connection,
DLIConnection dliConnection,
int resultSetType,
int resultSetConcurrency)
Creates a DLIStatement of specified type and concurrency. |
Method Summary | |
void |
addBatch(java.lang.String sql)
This function is not supported JDBC 2.0 Adds a SQL command to the current batch of commmands for the statement. |
void |
cancel()
This function is not supported Cancels this Statement object if both the DBMS and
driver support aborting an SQL statement. |
void |
clearBatch()
This function is not supported JDBC 2.0 Makes the set of commands in the current batch empty. |
void |
clearWarnings()
Clears all the warnings reported on this Statement
object. |
void |
close()
Releases this Statement object's database
and JDBC resources immediately instead of waiting for
this to happen when it is automatically closed. |
protected boolean |
execute(com.ibm.ims.db.DLIParser parser)
Executes a SQL statement of unknown type, and returns true if a ResultSet has been generated, false if an update count has been created. |
boolean |
execute(java.lang.String sql)
Executes a SQL statement that may return multiple results. |
boolean |
execute(java.lang.String sql,
int autoGeneratedKeys)
This function is not supported Executes the given SQL statement, which may return multiple results, and signals the driver that any auto-generated keys should be made available for retrieval. |
boolean |
execute(java.lang.String sql,
int[] columnIndexes)
This function is not supported Executes the given SQL statement, which may return multiple results, and signals the driver that the auto-generated keys indicated in the given array should be made available for retrieval. |
boolean |
execute(java.lang.String sql,
java.lang.String[] columnNames)
This function is not supported Executes the given SQL statement, which may return multiple results, and signals the driver that the auto-generated keys indicated in the given array should be made available for retrieval. |
int[] |
executeBatch()
This function is not supported JDBC 2.0 Submits a batch of commands to the database for execution. |
protected DLIResultSet |
executeQuery(com.ibm.ims.db.DLIParser parser)
This function is only supported to create ResultSets of type TYPE_FORWARD_ONLY and TYPE_SCROLL_INSENSITIVE. |
java.sql.ResultSet |
executeQuery(java.lang.String sql)
Executes a SQL statement that returns a single ResultSet. |
protected int |
executeUpdate(com.ibm.ims.db.DLIParser parser)
Executes an SQL INSERT, UPDATE or DELETE statement. |
int |
executeUpdate(java.lang.String sql)
Executes an SQL INSERT, UPDATE or DELETE statement. |
int |
executeUpdate(java.lang.String sql,
int autoGeneratedKeys)
This function is not supported Executes the given SQL statement and signals the driver with the given flag about whether the auto-generated keys produced by this Statement object
should be made available for retrieval. |
int |
executeUpdate(java.lang.String sql,
int[] columnIndexes)
This function is not supported Executes the given SQL statement and signals the driver that the auto-generated keys indicated in the given array should be made available for retrieval. |
int |
executeUpdate(java.lang.String sql,
java.lang.String[] columnNames)
This function is not supported Executes the given SQL statement and signals the driver that the auto-generated keys indicated in the given array should be made available for retrieval. |
java.sql.Connection |
getConnection()
JDBC 2.0 Returns the Connection object
that produced this Statement object. |
int |
getFetchDirection()
This function is not supported JDBC 2.0 Retrieves the direction for fetching rows from database tables that is the default for result sets generated from this Statement object. |
int |
getFetchSize()
This function is not supported JDBC 2.0 Retrieves the number of result set rows that is the default fetch size for result sets generated from this Statement object. |
java.sql.ResultSet |
getGeneratedKeys()
This function is not supported Retrieves any auto-generated keys created as a result of executing this Statement object. |
int |
getMaxFieldSize()
Returns the maximum number of bytes allowed for any column value. |
int |
getMaxRows()
Retrieves the maximum number of rows that a ResultSet can contain. |
boolean |
getMoreResults()
Moves to a Statement's next result. |
boolean |
getMoreResults(int current)
This function is not supported Moves to this Statement object's next result, deals with
any current ResultSet object(s) according to the instructions
specified by the given flag, and returns
true if the next result is a ResultSet object. |
int |
getQueryTimeout()
This function is not supported Retrieves the number of seconds the driver will wait for a Statement to execute. |
java.sql.ResultSet |
getResultSet()
Returns the current result as a ResultSet object. |
int |
getResultSetConcurrency()
This function is not supported JDBC 2.0 Retrieves the result set concurrency. |
int |
getResultSetHoldability()
This function is not supported Retrieves the result set holdability for ResultSet objects
generated by this Statement object. |
int |
getResultSetType()
This function is not supported JDBC 2.0 Determine the result set type. |
int |
getUpdateCount()
Returns the current result as an update count; if the result is a ResultSet or there are no more results, -1 is returned. |
java.sql.SQLWarning |
getWarnings()
Retrieves the first warning reported by calls on this Statement. |
protected boolean |
isClosed()
Returns true if the Statement has been closed. |
protected void |
resetConnection(java.sql.Connection connection,
DLIConnection dliConnection)
Updates the Connection object when the Statement is being reused (used by PreparedStatements). |
void |
setCursorName(java.lang.String name)
This function is not supported Defines the SQL cursor name that will be used by subsequent Statement execute methods. |
void |
setEscapeProcessing(boolean enable)
Sets escape processing on or off. |
void |
setFetchDirection(int direction)
This function is not supported JDBC 2.0 Gives the driver a hint as to the direction in which the rows in a result set will be processed. |
void |
setFetchSize(int rows)
This function is not supported JDBC 2.0 Gives the JDBC driver a hint as to the number of rows that should be fetched from the database when more rows are needed. |
void |
setMaxFieldSize(int max)
Sets the limit for the maximum number of bytes in a column to the given number of bytes. |
void |
setMaxRows(int max)
Sets the limit for the maximum number of rows that any ResultSet can contain to the given number. |
void |
setQueryTimeout(int seconds)
This function is not supported Sets the number of seconds the driver will wait for a Statement to execute to the given number of seconds. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
protected DLIStatement(java.sql.Connection connection, DLIConnection dliConnection)
public DLIStatement(java.sql.Connection connection, DLIConnection dliConnection, int resultSetType, int resultSetConcurrency)
Method Detail |
protected void resetConnection(java.sql.Connection connection, DLIConnection dliConnection)
protected boolean isClosed()
public void addBatch(java.lang.String sql) throws java.sql.SQLException
addBatch
in interface java.sql.Statement
sql
- typically this is a static SQL INSERT or UPDATE statementjava.sql.SQLException
- if a database access error occurs, or the
driver does not support batch statementspublic void cancel() throws java.sql.SQLException
Statement
object if both the DBMS and
driver support aborting an SQL statement.
This method can be used by one thread to cancel a statement that
is being executed by another thread.cancel
in interface java.sql.Statement
java.sql.SQLException
- if a database access error occurspublic void clearBatch() throws java.sql.SQLException
clearBatch
in interface java.sql.Statement
java.sql.SQLException
- if a database access error occurs or the
driver does not support batch statementspublic void clearWarnings() throws java.sql.SQLException
Statement
object. After a call to this method,
the method getWarnings
will return
null until a new warning is reported for this Statement.clearWarnings
in interface java.sql.Statement
java.sql.SQLException
- if a database access error occurspublic void close() throws java.sql.SQLException
Statement
object's database
and JDBC resources immediately instead of waiting for
this to happen when it is automatically closed.
It is generally good practice to release resources as soon as
you are finished with them to avoid tying up database
resources.
Note: A Statement is automatically closed when it is garbage collected. When a Statement is closed, its current ResultSet, if one exists, is also closed.
close
in interface java.sql.Statement
java.sql.SQLException
- if a database access error occursprotected boolean execute(com.ibm.ims.db.DLIParser parser) throws java.sql.SQLException
sql
- any SQL statementjava.sql.SQLException
- if a database access error occurspublic boolean execute(java.lang.String sql) throws java.sql.SQLException
execute
,
getMoreResults
, getResultSet
,
and getUpdateCount
let you navigate through multiple results.
The execute
method executes a SQL statement and indicates the
form of the first result. You can then use getResultSet or
getUpdateCount to retrieve the result, and getMoreResults to
move to any subsequent result(s).execute
in interface java.sql.Statement
sql
- any SQL statementjava.sql.SQLException
- if a database access error occursgetResultSet()
,
getUpdateCount()
,
getMoreResults()
public int[] executeBatch() throws java.sql.SQLException
executeBatch
in interface java.sql.Statement
java.sql.SQLException
- if a database access error occurs or the
driver does not support batch statementsprotected DLIResultSet executeQuery(com.ibm.ims.db.DLIParser parser) throws java.sql.SQLException
parser
- DLIParser class holding all parsed information from SQLjava.sql.SQLException
- if a database access error occurspublic java.sql.ResultSet executeQuery(java.lang.String sql) throws java.sql.SQLException
executeQuery
in interface java.sql.Statement
sql
- typically this is a static SQL SELECT statementjava.sql.SQLException
- if a database access error occursprotected int executeUpdate(com.ibm.ims.db.DLIParser parser) throws java.sql.SQLException
parser
- DLIParser class holding all parsed information from SQLjava.sql.SQLException
- if a database access error occurspublic int executeUpdate(java.lang.String sql) throws java.sql.SQLException
executeUpdate
in interface java.sql.Statement
sql
- a SQL INSERT, UPDATE or DELETE statement or a SQL
statement that returns nothingjava.sql.SQLException
- if a database access error occurspublic java.sql.Connection getConnection() throws java.sql.SQLException
Connection
object
that produced this Statement
object.getConnection
in interface java.sql.Statement
java.sql.SQLException
- if a database access error occurspublic int getFetchDirection() throws java.sql.SQLException
Statement
object.
If this Statement
object has not set
a fetch direction by calling the method setFetchDirection
,
the return value is implementation-specific.getFetchDirection
in interface java.sql.Statement
Statement
objectjava.sql.SQLException
- if a database access error occurspublic int getFetchSize() throws java.sql.SQLException
Statement
object.
If this Statement
object has not set
a fetch size by calling the method setFetchSize
,
the return value is implementation-specific.getFetchSize
in interface java.sql.Statement
Statement
objectjava.sql.SQLException
- if a database access error occurspublic int getMaxFieldSize() throws java.sql.SQLException
getMaxFieldSize
in interface java.sql.Statement
java.sql.SQLException
- if a database access error occurspublic int getMaxRows() throws java.sql.SQLException
getMaxRows
in interface java.sql.Statement
java.sql.SQLException
- if a database access error occurspublic boolean getMoreResults() throws java.sql.SQLException
getMoreResults
in interface java.sql.Statement
java.sql.SQLException
- if a database access error occursexecute(com.ibm.ims.db.DLIParser)
public int getQueryTimeout() throws java.sql.SQLException
getQueryTimeout
in interface java.sql.Statement
java.sql.SQLException
- if a database access error occurspublic java.sql.ResultSet getResultSet() throws java.sql.SQLException
ResultSet
object.
This method should be called only once per result.getResultSet
in interface java.sql.Statement
java.sql.SQLException
- if a database access error occursexecute(com.ibm.ims.db.DLIParser)
public int getResultSetConcurrency() throws java.sql.SQLException
getResultSetConcurrency
in interface java.sql.Statement
public int getResultSetType() throws java.sql.SQLException
getResultSetType
in interface java.sql.Statement
public int getUpdateCount() throws java.sql.SQLException
getUpdateCount
in interface java.sql.Statement
java.sql.SQLException
- if a database access error occursexecute(com.ibm.ims.db.DLIParser)
public java.sql.SQLWarning getWarnings() throws java.sql.SQLException
The warning chain is automatically cleared each time a statement is (re)executed.
Note: If you are processing a ResultSet, any warnings associated with ResultSet reads will be chained on the ResultSet object.
getWarnings
in interface java.sql.Statement
java.sql.SQLException
- if a database access error occurspublic void setCursorName(java.lang.String name) throws java.sql.SQLException
execute
methods. This name can then be
used in SQL positioned update/delete statements to identify the
current row in the ResultSet generated by this statement. If
the database doesn't support positioned update/delete, this
method is a noop. To insure that a cursor has the proper isolation
level to support updates, the cursor's SELECT statement should be
of the form 'select for update ...'. If the 'for update' phrase is
omitted, positioned updates may fail.
Note: By definition, positioned update/delete execution must be done by a different Statement than the one which generated the ResultSet being used for positioning. Also, cursor names must be unique within a connection.
setCursorName
in interface java.sql.Statement
name
- the new cursor name, which must be unique within
a connectionjava.sql.SQLException
- if a database access error occurspublic void setEscapeProcessing(boolean enable) throws java.sql.SQLException
setEscapeProcessing
in interface java.sql.Statement
enable
- true to enable; false to disablejava.sql.SQLException
- if a database access error occurspublic void setFetchDirection(int direction) throws java.sql.SQLException
Note that this method sets the default fetch direction for
result sets generated by this Statement
object.
Each result set has its own methods for getting and setting
its own fetch direction.
setFetchDirection
in interface java.sql.Statement
direction
- the initial direction for processing rowsjava.sql.SQLException
- if a database access error occurs
or the given direction
is not one of ResultSet.FETCH_FORWARD, ResultSet.FETCH_REVERSE, or
ResultSet.FETCH_UNKNOWNpublic void setFetchSize(int rows) throws java.sql.SQLException
setFetchSize
in interface java.sql.Statement
rows
- the number of rows to fetchjava.sql.SQLException
- if a database access error occurs, or the
condition 0 <= rows <= this.getMaxRows() is not satisfied.public void setMaxFieldSize(int max) throws java.sql.SQLException
setMaxFieldSize
in interface java.sql.Statement
max
- the new max column size limit; zero means unlimitedjava.sql.SQLException
- if a database access error occurspublic void setMaxRows(int max) throws java.sql.SQLException
setMaxRows
in interface java.sql.Statement
max
- the new max rows limit; zero means unlimitedjava.sql.SQLException
- if a database access error occurspublic void setQueryTimeout(int seconds) throws java.sql.SQLException
setQueryTimeout
in interface java.sql.Statement
seconds
- the new query timeout limit in seconds; zero means
unlimitedjava.sql.SQLException
- if a database access error occurspublic boolean getMoreResults(int current) throws java.sql.SQLException
Statement
object's next result, deals with
any current ResultSet
object(s) according to the instructions
specified by the given flag, and returns
true
if the next result is a ResultSet
object.
There are no more results when the following is true:
(!getMoreResults() && (getUpdateCount() == -1)
current
- one of the following Statement
constants indicating what should happen to current
ResultSet
objects obtained using the method
getResultSetCLOSE_CURRENT_RESULT
,
KEEP_CURRENT_RESULT
, or
CLOSE_ALL_RESULTS
true
if the next result is a ResultSet
object; false
if it is an update count or there are no
more resultsjava.sql.SQLException
- if a database access error occursexecute(com.ibm.ims.db.DLIParser)
public java.sql.ResultSet getGeneratedKeys() throws java.sql.SQLException
Statement
object. If this Statement
object did
not generate any keys, an empty ResultSet
object is returned.ResultSet
object containing the auto-generated key(s)
generated by the execution of this Statement
objectjava.sql.SQLException
- if a database access error occurspublic int executeUpdate(java.lang.String sql, int autoGeneratedKeys) throws java.sql.SQLException
Statement
object
should be made available for retrieval.sql
- must be an SQL INSERT
, UPDATE
or
DELETE
statement or an SQL statement that
returns nothingautoGeneratedKeys
- a flag indicating whether auto-generated keys
should be made available for retrieval;
one of the following constants:
Statement.RETURN_GENERATED_KEYS
Statement.NO_GENERATED_KEYS
INSERT
, UPDATE
or DELETE
statements, or 0
for SQL
statements that return nothingjava.sql.SQLException
- if a database access error occurs, the given
SQL statement returns a ResultSet
object, or
the given constant is not one of those allowedpublic int executeUpdate(java.lang.String sql, int[] columnIndexes) throws java.sql.SQLException
INSERT
statement.sql
- an SQL INSERT
, UPDATE
or
DELETE
statement or an SQL statement that returns nothing,
such as an SQL DDL statementcolumnIndexes
- an array of column indexes indicating the columns
that should be returned from the inserted rowINSERT
, UPDATE
,
or DELETE
statements, or 0 for SQL statements
that return nothingjava.sql.SQLException
- if a database access error occurs or the SQL
statement returns a ResultSet
objectpublic int executeUpdate(java.lang.String sql, java.lang.String[] columnNames) throws java.sql.SQLException
INSERT
statement.sql
- an SQL INSERT
, UPDATE
or
DELETE
statement or an SQL statement that returns nothingcolumnNames
- an array of the names of the columns that should be
returned from the inserted rowINSERT
, UPDATE
,
or DELETE
statements, or 0 for SQL statements
that return nothingjava.sql.SQLException
- if a database access error occurspublic boolean execute(java.lang.String sql, int autoGeneratedKeys) throws java.sql.SQLException
INSERT
statement.
In some (uncommon) situations, a single SQL statement may return multiple result sets and/or update counts. Normally you can ignore this unless you are (1) executing a stored procedure that you know may return multiple results or (2) you are dynamically executing an unknown SQL string.
The execute
method executes an SQL statement and indicates the
form of the first result. You must then use the methods
getResultSet
or getUpdateCount
to retrieve the result, and getMoreResults
to
move to any subsequent result(s).
sql
- any SQL statementautoGeneratedKeys
- a constant indicating whether auto-generated
keys should be made available for retrieval using the method
getGeneratedKeys
; one of the following constants:
Statement.RETURN_GENERATED_KEYS
or
Statement.NO_GENERATED_KEYS
true
if the first result is a ResultSet
object; false
if it is an update count or there are
no resultsjava.sql.SQLException
- if a database access error occursgetResultSet()
,
getUpdateCount()
,
getMoreResults()
,
getGeneratedKeys()
public boolean execute(java.lang.String sql, int[] columnIndexes) throws java.sql.SQLException
INSERT
statement.
Under some (uncommon) situations, a single SQL statement may return multiple result sets and/or update counts. Normally you can ignore this unless you are (1) executing a stored procedure that you know may return multiple results or (2) you are dynamically executing an unknown SQL string.
The execute
method executes an SQL statement and indicates the
form of the first result. You must then use the methods
getResultSet
or getUpdateCount
to retrieve the result, and getMoreResults
to
move to any subsequent result(s).
sql
- any SQL statementcolumnIndexes
- an array of the indexes of the columns in the
inserted row that should be made available for retrieval by a
call to the method getGeneratedKeys
true
if the first result is a ResultSet
object; false
if it is an update count or there
are no resultsjava.sql.SQLException
- if a database access error occursgetResultSet()
,
getUpdateCount()
,
getMoreResults()
public boolean execute(java.lang.String sql, java.lang.String[] columnNames) throws java.sql.SQLException
INSERT
statement.
In some (uncommon) situations, a single SQL statement may return multiple result sets and/or update counts. Normally you can ignore this unless you are (1) executing a stored procedure that you know may return multiple results or (2) you are dynamically executing an unknown SQL string.
The execute
method executes an SQL statement and indicates the
form of the first result. You must then use the methods
getResultSet
or getUpdateCount
to retrieve the result, and getMoreResults
to
move to any subsequent result(s).
sql
- any SQL statementcolumnNames
- an array of the names of the columns in the inserted
row that should be made available for retrieval by a call to the
method getGeneratedKeys
true
if the next result is a ResultSet
object; false
if it is an update count or there
are no more resultsjava.sql.SQLException
- if a database access error occursgetResultSet()
,
getUpdateCount()
,
getMoreResults()
,
getGeneratedKeys()
public int getResultSetHoldability() throws java.sql.SQLException
ResultSet
objects
generated by this Statement
object.ResultSet.HOLD_CURSORS_OVER_COMMIT
or
ResultSet.CLOSE_CURSORS_AT_COMMIT
java.sql.SQLException
- if a database access error occurs
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SUMMARY: INNER | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |