groovyresultset.java
来自「大名鼎鼎的java动态脚本语言。已经通过了sun的认证」· Java 代码 · 共 1,569 行 · 第 1/5 页
JAVA
1,569 行
public double getDouble(String columnName) throws SQLException { return getResultSet().getDouble(columnName); } /** * Retrieves the value of the designated column in the current row * of this <code>getResultSet()</code> object as * a <code>java.math.BigDecimal</code> in the Java programming language. * * @param columnName the SQL name of the column * @param scale the number of digits to the right of the decimal point * @return the column value; if the value is SQL <code>NULL</code>, the * value returned is <code>null</code> * @throws SQLException if a database access error occurs * @deprecated */ public BigDecimal getBigDecimal(String columnName, int scale) throws SQLException { return getResultSet().getBigDecimal(columnName, scale); } /** * Retrieves the value of the designated column in the current row * of this <code>getResultSet()</code> object as * a <code>byte</code> array in the Java programming language. * The bytes represent the raw values returned by the driver. * * @param columnName the SQL name of the column * @return the column value; if the value is SQL <code>NULL</code>, the * value returned is <code>null</code> * @throws SQLException if a database access error occurs */ public byte[] getBytes(String columnName) throws SQLException { return getResultSet().getBytes(columnName); } /** * Retrieves the value of the designated column in the current row * of this <code>getResultSet()</code> object as * a <code>java.sql.Date</code> object in the Java programming language. * * @param columnName the SQL name of the column * @return the column value; if the value is SQL <code>NULL</code>, the * value returned is <code>null</code> * @throws SQLException if a database access error occurs */ public java.sql.Date getDate(String columnName) throws SQLException { return getResultSet().getDate(columnName); } /** * Retrieves the value of the designated column in the current row * of this <code>getResultSet()</code> object as * a <code>java.sql.Time</code> object in the Java programming language. * * @param columnName the SQL name of the column * @return the column value; * if the value is SQL <code>NULL</code>, * the value returned is <code>null</code> * @throws SQLException if a database access error occurs */ public java.sql.Time getTime(String columnName) throws SQLException { return getResultSet().getTime(columnName); } /** * Retrieves the value of the designated column in the current row * of this <code>getResultSet()</code> object as * a <code>java.sql.Timestamp</code> object. * * @param columnName the SQL name of the column * @return the column value; if the value is SQL <code>NULL</code>, the * value returned is <code>null</code> * @throws SQLException if a database access error occurs */ public java.sql.Timestamp getTimestamp(String columnName) throws SQLException { return getResultSet().getTimestamp(columnName); } /** * Retrieves the value of the designated column in the current row * of this <code>getResultSet()</code> object as a stream of * ASCII characters. The value can then be read in chunks from the * stream. This method is particularly * suitable for retrieving large <code>LONGVARCHAR</code> values. * The JDBC driver will * do any necessary conversion from the database format into ASCII. * <p/> * <P><B>Note:</B> All the data in the returned stream must be * read prior to getting the value of any other column. The next * call to a getter method implicitly closes the stream. Also, a * stream may return <code>0</code> when the method <code>available</code> * is called whether there is data available or not. * * @param columnName the SQL name of the column * @return a Java input stream that delivers the database column value * as a stream of one-byte ASCII characters. * If the value is SQL <code>NULL</code>, * the value returned is <code>null</code>. * @throws SQLException if a database access error occurs */ public java.io.InputStream getAsciiStream(String columnName) throws SQLException { return getResultSet().getAsciiStream(columnName); } /** * Retrieves the value of the designated column in the current row * of this <code>getResultSet()</code> object as a stream of two-byte * Unicode characters. The first byte is the high byte; the second * byte is the low byte. * <p/> * The value can then be read in chunks from the * stream. This method is particularly * suitable for retrieving large <code>LONGVARCHAR</code> values. * The JDBC technology-enabled driver will * do any necessary conversion from the database format into Unicode. * <p/> * <P><B>Note:</B> All the data in the returned stream must be * read prior to getting the value of any other column. The next * call to a getter method implicitly closes the stream. * Also, a stream may return <code>0</code> when the method * <code>InputStream.available</code> is called, whether there * is data available or not. * * @param columnName the SQL name of the column * @return a Java input stream that delivers the database column value * as a stream of two-byte Unicode characters. * If the value is SQL <code>NULL</code>, the value returned * is <code>null</code>. * @throws SQLException if a database access error occurs * @deprecated use <code>getCharacterStream</code> instead */ public java.io.InputStream getUnicodeStream(String columnName) throws SQLException { return getResultSet().getUnicodeStream(columnName); } /** * Retrieves the value of the designated column in the current row * of this <code>getResultSet()</code> object as a stream of uninterpreted * <code>byte</code>s. * The value can then be read in chunks from the * stream. This method is particularly * suitable for retrieving large <code>LONGVARBINARY</code> * values. * <p/> * <P><B>Note:</B> All the data in the returned stream must be * read prior to getting the value of any other column. The next * call to a getter method implicitly closes the stream. Also, a * stream may return <code>0</code> when the method <code>available</code> * is called whether there is data available or not. * * @param columnName the SQL name of the column * @return a Java input stream that delivers the database column value * as a stream of uninterpreted bytes; * if the value is SQL <code>NULL</code>, the result is <code>null</code> * @throws SQLException if a database access error occurs */ public java.io.InputStream getBinaryStream(String columnName) throws SQLException { return getResultSet().getBinaryStream(columnName); } //===================================================================== // Advanced features: //===================================================================== /** * Retrieves the first warning reported by calls on this * <code>getResultSet()</code> object. * Subsequent warnings on this <code>getResultSet()</code> object * will be chained to the <code>SQLWarning</code> object that * this method returns. * <p/> * <P>The warning chain is automatically cleared each time a new * row is read. This method may not be called on a <code>getResultSet()</code> * object that has been closed; doing so will cause an * <code>SQLException</code> to be thrown. * <p/> * <B>Note:</B> This warning chain only covers warnings caused * by <code>getResultSet()</code> methods. Any warning caused by * <code>Statement</code> methods * (such as reading OUT parameters) will be chained on the * <code>Statement</code> object. * * @return the first <code>SQLWarning</code> object reported or * <code>null</code> if there are none * @throws SQLException if a database access error occurs or this method is * called on a closed result set */ public SQLWarning getWarnings() throws SQLException { return getResultSet().getWarnings(); } /** * Clears all warnings reported on this <code>getResultSet()</code> object. * After this method is called, the method <code>getWarnings</code> * returns <code>null</code> until a new warning is * reported for this <code>getResultSet()</code> object. * * @throws SQLException if a database access error occurs */ public void clearWarnings() throws SQLException { getResultSet().clearWarnings(); } /** * Retrieves the name of the SQL cursor used by this <code>getResultSet()</code> * object. * <p/> * <P>In SQL, a result table is retrieved through a cursor that is * named. The current row of a result set can be updated or deleted * using a positioned update/delete statement that references the * cursor name. To insure that the cursor has the proper isolation * level to support update, the cursor's <code>SELECT</code> statement * should be of the form <code>SELECT FOR UPDATE</code>. If * <code>FOR UPDATE</code> is omitted, the positioned updates may fail. * <p/> * <P>The JDBC API supports this SQL feature by providing the name of the * SQL cursor used by a <code>getResultSet()</code> object. * The current row of a <code>getResultSet()</code> object * is also the current row of this SQL cursor. * <p/> * <P><B>Note:</B> If positioned update is not supported, a * <code>SQLException</code> is thrown. * * @return the SQL name for this <code>getResultSet()</code> object's cursor * @throws SQLException if a database access error occurs */ public String getCursorName() throws SQLException { return getResultSet().getCursorName(); } /** * Retrieves the number, types and properties of * this <code>getResultSet()</code> object's columns. * * @return the description of this <code>getResultSet()</code> object's columns * @throws SQLException if a database access error occurs */ public ResultSetMetaData getMetaData() throws SQLException { return getResultSet().getMetaData(); } /** * <p>Gets the value of the designated column in the current row * of this <code>getResultSet()</code> object as * an <code>Object</code> in the Java programming language. * <p/> * <p>This method will return the value of the given column as a * Java object. The type of the Java object will be the default * Java object type corresponding to the column's SQL type, * following the mapping for built-in types specified in the JDBC * specification. If the value is an SQL <code>NULL</code>, * the driver returns a Java <code>null</code>. * <p/> * <p>This method may also be used to read database-specific * abstract data types. * <p/> * In the JDBC 2.0 API, the behavior of method * <code>getObject</code> is extended to materialize * data of SQL user-defined types. When a column contains * a structured or distinct value, the behavior of this method is as * if it were a call to: <code>getObject(columnIndex, * this.getStatement().getConnection().getTypeMap())</code>. * * @param columnIndex the first column is 1, the second is 2, ... * @return a <code>java.lang.Object</code> holding the column value * @throws SQLException if a database access error occurs */ public Object getObject(int columnIndex) throws SQLException { return getResultSet().getObject(columnIndex); } /** * <p>Gets the value of the designated column in the current row * of this <code>getResultSet()</code> object as * an <code>Object</code> in the Java programming language. * <p/> * <p>This method will return the value of the given column as a * Java object. The type of the Java object will be the default * Java object type corresponding to the column's SQL type, * following the mapping for built-in types specified in the JDBC * specification. If the value is an SQL <code>NULL</code>, * the driver returns a Java <code>null</code>. * <p/> * This method may also be used to read database-specific * abstract data types. * <p/> * In the JDBC 2.0 API, the behavior of the method * <code>getObject</code> is extended to materialize * data of SQL user-defined types. When a column contains * a structured or distinct value, the behavior of this method is as * if it were a call to: <code>getObject(columnIndex, * this.getStatement().getConnection().getTypeMap())</code>. * * @param columnName the SQL name of the column * @return a <code>java.lang.Object</code> holding the column value * @throws SQLException if a database access error occurs */ public Object getObject(String columnName) throws SQLException { return getResultSet().getObject(columnName); } //---------------------------------------------------------------- /** * Maps the given <code>getResultSet()</code> column name to its * <code>getResultSet()</code> column index. * * @param columnName the name of the column * @return the column index of the given column name * @throws SQLException if the <code>getResultSet()</code> object * does not contain <code>columnName</code> or a database access error occurs */
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