Java JavaObjectData类代码示例

import org.hsqldb.types.JavaObjectData; //导入依赖的package包/类
/**
 * <!-- start generic documentation -->
 *
 * Retrieves the value of the designated parameter as an <code>Object</code>
 * in the Java programming language. If the value is an SQL <code>NULL</code>,
 * the driver returns a Java <code>null</code>.
 * <p>
 * This method returns a Java object whose type corresponds to the JDBC
 * type that was registered for this parameter using the method
 * <code>registerOutParameter</code>.  By registering the target JDBC
 * type as <code>java.sql.Types.OTHER</code>, this method can be used
 * to read database-specific abstract data types.
 *
 * <!-- end generic documentation -->
 *
 * <!-- start release-specific documentation -->
 * <div class="ReleaseSpecificDocumentation">
 * <h3>HSQLDB-Specific Information:</h3> <p>
 *
 * HSQLDB supports this feature. <p>
 *
 * </div>
 * <!-- end release-specific documentation -->
 *
 * @param parameterIndex the first parameter is 1, the second is 2,
 *        and so on
 * @return A <code>java.lang.Object</code> holding the OUT parameter value
 * @exception SQLException if a database access error occurs or
 * this method is called on a closed <code>CallableStatement</code>
 * @see java.sql.Types
 * @see #setObject
 */
public synchronized Object getObject(
        int parameterIndex) throws SQLException {

    checkGetParameterIndex(parameterIndex);

    Type sourceType = parameterTypes[parameterIndex - 1];

    switch (sourceType.typeCode) {

        case Types.SQL_DATE :
            return getDate(parameterIndex);
        case Types.SQL_TIME :
        case Types.SQL_TIME_WITH_TIME_ZONE :
            return getTime(parameterIndex);
        case Types.SQL_TIMESTAMP :
        case Types.SQL_TIMESTAMP_WITH_TIME_ZONE :
            return getTimestamp(parameterIndex);
        case Types.SQL_BINARY :
        case Types.SQL_VARBINARY :
            return getBytes(parameterIndex);
        case Types.OTHER :
        case Types.JAVA_OBJECT : {
            Object o = getColumnInType(parameterIndex, sourceType);

            if (o == null) {
                return null;
            }

            try {
                return ((JavaObjectData) o).getObject();
            } catch (HsqlException e) {
                throw Util.sqlException(e);
            }
        }
        default :
            return getColumnInType(parameterIndex, sourceType);
    }
}
 

import org.hsqldb.types.JavaObjectData; //导入依赖的package包/类
protected Object readOther() {

        String s = readString();

        if (s == null) {
            return null;
        }

        BinaryData data = scanner.convertToBinary(s);

        if (data.length(null) == 0) {
            return null;
        }

        return new JavaObjectData(data.getBytes());
    }
 

import org.hsqldb.types.JavaObjectData; //导入依赖的package包/类
protected void writeOther(JavaObjectData o) {
    writeByteArray(o.getBytes());
}
 

import org.hsqldb.types.JavaObjectData; //导入依赖的package包/类
protected Object readOther() {

        readFieldPrefix();

        if (scanner.scanNull()) {
            return null;
        }

        scanner.scanBinaryStringWithQuote();

        if (scanner.getTokenType() == Tokens.X_MALFORMED_BINARY_STRING) {
            throw Error.error(ErrorCode.X_42587);
        }

        value = scanner.getValue();

        return new JavaObjectData(((BinaryData) value).getBytes());
    }
 

import org.hsqldb.types.JavaObjectData; //导入依赖的package包/类
protected Object readOther() {
    return new JavaObjectData(readByteArray());
}
 

import org.hsqldb.types.JavaObjectData; //导入依赖的package包/类
protected Object readOther() throws IOException {

        String s = readString();

        if (s == null) {
            return null;
        }

        BinaryData data = scanner.convertToBinary(s);

        if (data.length(null) == 0) {
            return null;
        }

        return new JavaObjectData(data.getBytes());
    }
 

import org.hsqldb.types.JavaObjectData; //导入依赖的package包/类
protected Object readOther() throws IOException {

        readFieldPrefix();

        if (scanner.scanNull()) {
            return null;
        }

        scanner.scanBinaryStringWithQuote();

        if (scanner.getTokenType() == Tokens.X_MALFORMED_BINARY_STRING) {
            throw Error.error(ErrorCode.X_42587);
        }

        value = scanner.getValue();

        return new JavaObjectData(((BinaryData) value).getBytes());
    }
 

import org.hsqldb.types.JavaObjectData; //导入依赖的package包/类
protected Object readOther() throws IOException {
    return new JavaObjectData(readByteArray());
}
 

import org.hsqldb.types.JavaObjectData; //导入依赖的package包/类
public void fire(int type, String name, String tableName, Object[] oldR,
		Object[] newR) {
	UcanaccessConnection conn = UcanaccessConnection.getCtxConnection();
	if (conn.isFeedbackState())
		return;
	try {
		Table t = conn.getDbIO().getTable(tableName);
		if (t == null)
			throw new RuntimeException(
					Logger.getMessage("TABLE_DOESNT_EXIST") + " :"
							+ tableName);
		int i = 0;
		for (Column cl : t.getColumns()) {
			if (cl.isAppendOnly()) {
				ColumnImpl verCol = (ColumnImpl)cl.getVersionHistoryColumn();
				Date upTime = new Date();
				String val = newR[i] == null ? null : newR[i].toString();
				if (type == TriggerBase.INSERT_BEFORE_ROW)
					newR[verCol.getColumnNumber()] = new JavaObjectData(
							new Version[] { new Version(val, upTime) });
				else if (type == TriggerBase.UPDATE_BEFORE_ROW
						&& (oldR[i] != null || newR[i] != null)) {
					if ((oldR[i] == null && newR[i] != null)
							|| (oldR[i] != null && newR[i] == null)
							|| (!oldR[i].equals(newR[i]))) {
						Version[] oldV = (Version[]) ((JavaObjectData)oldR[verCol
								.getColumnNumber()]).getObject();
						
						Version[] newV =new Version[oldV.length + 1];
						for(int j=0;j<oldV.length;j++){
							newV[j+1]=oldV[j];
						}
						newV[0] = new Version(val, upTime);
						newR[verCol.getColumnNumber()] = new JavaObjectData(
								newV);
					}
				}
			}
			++i;
		}
	} catch (Exception e) {
		throw new TriggerException(e.getMessage());
	}
}
 

import org.hsqldb.types.JavaObjectData; //导入依赖的package包/类
protected void writeOther(JavaObjectData o) {

        ensureRoom(o.getBytesLength() * 2 + 2);
        write('\'');
        StringConverter.writeHexBytes(getBuffer(), count, o.getBytes());

        count += o.getBytesLength() * 2;

        write('\'');
    }
 

import org.hsqldb.types.JavaObjectData; //导入依赖的package包/类
/**
 * <!-- start generic documentation -->
 * <p>Gets the value of the designated column in the current row
 * of this <code>ResultSet</code> object as
 * an <code>Object</code> in the Java programming language.
 *
 * <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.
 *
 * In the JDBC 2.0 API, the behavior of method
 * <code>getObject</code> is extended to materialize
 * data of SQL user-defined types.
 * <p>
 * If <code>Connection.getTypeMap</code> does not throw a
 * <code>SQLFeatureNotSupportedException</code>,
 * then 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>.
 *
 * If <code>Connection.getTypeMap</code> does throw a
 * <code>SQLFeatureNotSupportedException</code>,
 * then structured values are not supported, and distinct values
 * are mapped to the default Java class as determined by the
 * underlying SQL type of the DISTINCT type.
 * <!-- end generic documentation -->
 *
 * @param columnIndex the first column is 1, the second is 2, ...
 * @return a <code>java.lang.Object</code> holding the column value
 * @exception SQLException if a database access error occurs or this method is
 *            called on a closed result set
 */
public Object getObject(int columnIndex) throws SQLException {

    checkColumn(columnIndex);

    Type sourceType = resultMetaData.columnTypes[columnIndex - 1];

    switch (sourceType.typeCode) {

        case Types.SQL_DATE :
            return getDate(columnIndex);
        case Types.SQL_TIME :
        case Types.SQL_TIME_WITH_TIME_ZONE :
            return getTime(columnIndex);
        case Types.SQL_TIMESTAMP :
        case Types.SQL_TIMESTAMP_WITH_TIME_ZONE :
            return getTimestamp(columnIndex);
        case Types.SQL_BINARY :
        case Types.SQL_VARBINARY :
            return getBytes(columnIndex);
        case Types.OTHER :
        case Types.JAVA_OBJECT : {
            Object o = getColumnInType(columnIndex, sourceType);

            if (o == null) {
                return null;
            }

            try {
                return ((JavaObjectData) o).getObject();
            } catch (HsqlException e) {
                throw Util.sqlException(e);
            }
        }
        default :
            return getColumnInType(columnIndex, sourceType);
    }
}
 

import org.hsqldb.types.JavaObjectData; //导入依赖的package包/类
protected void writeOther(JavaObjectData o) {

        byte[] ba = o.getBytes();

        writeByteArray(ba);
    }