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Java Source | 1996-11-10 | 9.5 KB | 241 lines |
- /*
- * Copyright (c) 1996 Sun Microsystems, Inc. All Rights Reserved.
- *
- * Permission to use, copy, modify, and distribute this software
- * and its documentation for NON-COMMERCIAL purposes and without
- * fee is hereby granted provided that this copyright notice
- * appears in all copies. Please refer to the file "LICENSE"
- * for further important copyright and licensing information.
- *
- * SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF
- * THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
- * TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
- * PARTICULAR PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR
- * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
- * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
- *
- * THIS SOFTWARE IS NOT DESIGNED OR INTENDED FOR USE OR RESALE AS ON-LINE
- * CONTROL EQUIPMENT IN HAZARDOUS ENVIRONMENTS REQUIRING FAIL-SAFE
- * PERFORMANCE, SUCH AS IN THE OPERATION OF NUCLEAR FACILITIES, AIRCRAFT
- * NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL, DIRECT LIFE
- * SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH THE FAILURE OF THE
- * SOFTWARE COULD LEAD DIRECTLY TO DEATH, PERSONAL INJURY, OR SEVERE
- * PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH RISK ACTIVITIES"). SUN
- * SPECIFICALLY DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR
- * HIGH RISK ACTIVITIES.
- */
-
- package java.sql;
-
- /**
- * <P>CallableStatement is used to execute SQL stored procedures.
- *
- * <P>JDBC provides a stored procedure SQL escape that allows stored
- * procedures to be called in a standard way for all RDBMS's. 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 may be used for input,
- * output or both. Parameters are refered to sequentially, by
- * number. The first parameter is 1.
- *
- * <P><CODE>
- * {?= call <procedure-name>[<arg1>,<arg2>, ...]}<BR>
- * {call <procedure-name>[<arg1>,<arg2>, ...]}
- * </CODE>
- *
- * <P>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.
- *
- * <P>A Callable statement may return a ResultSet or multiple
- * ResultSets. Multiple ResultSets are handled using operations
- * inherited from Statement.
- *
- * <P>For maximum portability, a call's ResultSets and update counts
- * should be processed prior to getting the values of output
- * parameters.
- *
- * @see Connection#prepareCall
- * @see ResultSet
- */
- public interface CallableStatement extends PreparedStatement {
-
- /**
- * Before executing a stored procedure call, you must explicitly
- * call registerOutParameter to register the java.sql.Type of each
- * out parameter.
- *
- * <P><B>Note:</B> When reading the value of an out parameter, you
- * must use the getXXX method whose Java type XXX corresponds to the
- * parameter's registered SQL type.
- *
- * @param parameterIndex the first parameter is 1, the second is 2,...
- * @param sqlType SQL type code defined by java.sql.Types;
- * for parameters of type Numeric or Decimal use the version of
- * registerOutParameter that accepts a scale value
- * @see Type
- */
- void registerOutParameter(int parameterIndex, int sqlType)
- throws SQLException;
-
- /**
- * Use this version of registerOutParameter for registering
- * Numeric or Decimal out parameters.
- *
- * <P><B>Note:</B> When reading the value of an out parameter, you
- * must use the getXXX method whose Java type XXX corresponds to the
- * parameter's registered SQL type.
- *
- * @param parameterIndex the first parameter is 1, the second is 2, ...
- * @param sqlType use either java.sql.Type.NUMERIC or java.sql.Type.DECIMAL
- * @param scale a value greater than or equal to zero representing the
- * desired number of digits to the right of the decimal point
- * @see Type
- */
- void registerOutParameter(int parameterIndex, int sqlType, int scale)
- throws SQLException;
-
- /**
- * An OUT parameter may have the value of SQL NULL; wasNull reports
- * whether the last value read has this special value.
- *
- * <P><B>Note:</B> You must first call getXXX on a parameter to
- * read its value and then call wasNull() to see if the value was
- * SQL NULL.
- *
- * @return true if the last parameter read was SQL NULL
- */
- boolean wasNull() throws SQLException;
-
- /**
- * Get the value of a CHAR, VARCHAR, or LONGVARCHAR parameter as a Java String.
- *
- * @param parameterIndex the first parameter is 1, the second is 2, ...
- * @return the parameter value; if the value is SQL NULL, the result is null
- */
- String getString(int parameterIndex) throws SQLException;
-
- /**
- * Get the value of a BIT parameter as a Java boolean.
- *
- * @param parameterIndex the first parameter is 1, the second is 2, ...
- * @return the parameter value; if the value is SQL NULL, the result is false
- */
- boolean getBoolean(int parameterIndex) throws SQLException;
-
- /**
- * Get the value of a TINYINT parameter as a Java byte.
- *
- * @param parameterIndex the first parameter is 1, the second is 2, ...
- * @return the parameter value; if the value is SQL NULL, the result is 0
- */
- byte getByte(int parameterIndex) throws SQLException;
-
- /**
- * Get the value of a SMALLINT parameter as a Java short.
- *
- * @param parameterIndex the first parameter is 1, the second is 2, ...
- * @return the parameter value; if the value is SQL NULL, the result is 0
- */
- short getShort(int parameterIndex) throws SQLException;
-
- /**
- * Get the value of an INTEGER parameter as a Java int.
- *
- * @param parameterIndex the first parameter is 1, the second is 2, ...
- * @return the parameter value; if the value is SQL NULL, the result is 0
- */
- int getInt(int parameterIndex) throws SQLException;
-
- /**
- * Get the value of a BIGINT parameter as a Java long.
- *
- * @param parameterIndex the first parameter is 1, the second is 2, ...
- * @return the parameter value; if the value is SQL NULL, the result is 0
- */
- long getLong(int parameterIndex) throws SQLException;
-
- /**
- * Get the value of a FLOAT parameter as a Java float.
- *
- * @param parameterIndex the first parameter is 1, the second is 2, ...
- * @return the parameter value; if the value is SQL NULL, the result is 0
- */
- float getFloat(int parameterIndex) throws SQLException;
-
- /**
- * Get the value of a DOUBLE parameter as a Java double.
- *
- * @param parameterIndex the first parameter is 1, the second is 2, ...
- * @return the parameter value; if the value is SQL NULL, the result is 0
- */
- double getDouble(int parameterIndex) throws SQLException;
-
- /**
- * Get the value of a NUMERIC parameter as a java.lang.Bignum object.
- *
- * @param parameterIndex the first parameter is 1, the second is 2, ...
- * @param scale a value greater than or equal to zero representing the
- * desired number of digits to the right of the decimal point
- * @return the parameter value; if the value is SQL NULL, the result is null
- */
- Bignum getBignum(int parameterIndex, int scale) throws SQLException;
-
- /**
- * Get the value of a SQL BINARY or VARBINARY parameter as a Java byte[]
- *
- * @param parameterIndex the first parameter is 1, the second is 2, ...
- * @return the parameter value; if the value is SQL NULL, the result is null
- */
- byte[] getBytes(int parameterIndex) throws SQLException;
-
- /**
- * Get the value of a SQL DATE parameter as a java.sql.Date object
- *
- * @param parameterIndex the first parameter is 1, the second is 2, ...
- * @return the parameter value; if the value is SQL NULL, the result is null
- */
- java.sql.Date getDate(int parameterIndex) throws SQLException;
-
- /**
- * Get the value of a SQL TIME parameter as a java.sql.Time object.
- *
- * @param parameterIndex the first parameter is 1, the second is 2, ...
- * @return the parameter value; if the value is SQL NULL, the result is null
- */
- java.sql.Time getTime(int parameterIndex) throws SQLException;
-
- /**
- * Get the value of a SQL TIMESTAMP parameter as a java.sql.Timestamp object.
- *
- * @param parameterIndex the first parameter is 1, the second is 2, ...
- * @return the parameter value; if the value is SQL NULL, the result is null
- */
- java.sql.Timestamp getTimestamp(int parameterIndex)
- throws SQLException;
-
- //----------------------------------------------------------------------
- // Advanced features:
-
-
- /**
- * Get the value of a parameter as a Java object.
- *
- * <p>This method returns a Java object whose type coresponds to the SQL
- * type that was registered for this parameter using registerOutParameter.
- *
- * <p>Note that this method may be used to read
- * datatabase-specific, abstract data types. This is done by
- * specifying a targetSqlType of java.sql.types.OTHER, which
- * allows the driver to return a database-specific Java type.
- *
- * @param parameterIndex The first parameter is 1, the second is 2, ...
- * @return A java.lang.Object holding the OUT parameter value.
- * @see Types
- */
- Object getObject(int parameterIndex) throws SQLException;
-
- }
-
-