Example usage for java.sql Types CLOB

List of usage examples for java.sql Types CLOB

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Introduction

In this page you can find the example usage for java.sql Types CLOB.

Prototype

int CLOB

To view the source code for java.sql Types CLOB.

Click Source Link

Document

The constant in the Java programming language, sometimes referred to as a type code, that identifies the generic SQL type CLOB.

Usage

From source file:helma.objectmodel.db.NodeManager.java

/**
 *  Create a new Node from a ResultSet./*from   w w w .  ja  v a 2  s  .  c om*/
 */
public Node createNode(DbMapping dbm, ResultSet rs, DbColumn[] columns, int offset)
        throws SQLException, IOException, ClassNotFoundException {
    HashMap propBuffer = new HashMap();
    String id = null;
    String name = null;
    String protoName = dbm.getTypeName();
    DbMapping dbmap = dbm;

    Node node = new Node(safe);

    for (int i = 0; i < columns.length; i++) {

        int columnNumber = i + 1 + offset;

        // set prototype?
        if (columns[i].isPrototypeField()) {
            String protoId = rs.getString(columnNumber);
            protoName = dbm.getPrototypeName(protoId);

            if (protoName != null) {
                dbmap = getDbMapping(protoName);

                if (dbmap == null) {
                    // invalid prototype name!
                    app.logError("No prototype defined for prototype mapping \"" + protoName
                            + "\" - Using default prototype \"" + dbm.getTypeName() + "\".");
                    dbmap = dbm;
                    protoName = dbmap.getTypeName();
                }
            }
        }

        // set id?
        if (columns[i].isIdField()) {
            id = rs.getString(columnNumber);
            // if id == null, the object doesn't actually exist - return null
            if (id == null) {
                return null;
            }
        }

        // set name?
        if (columns[i].isNameField()) {
            name = rs.getString(columnNumber);
        }

        Property newprop = new Property(node);

        switch (columns[i].getType()) {
        case Types.BIT:
        case Types.BOOLEAN:
            newprop.setBooleanValue(rs.getBoolean(columnNumber));

            break;

        case Types.TINYINT:
        case Types.BIGINT:
        case Types.SMALLINT:
        case Types.INTEGER:
            newprop.setIntegerValue(rs.getLong(columnNumber));

            break;

        case Types.REAL:
        case Types.FLOAT:
        case Types.DOUBLE:
            newprop.setFloatValue(rs.getDouble(columnNumber));

            break;

        case Types.DECIMAL:
        case Types.NUMERIC:

            BigDecimal num = rs.getBigDecimal(columnNumber);
            if (num == null) {
                break;
            }
            if (num.scale() > 0) {
                newprop.setFloatValue(num.doubleValue());
            } else {
                newprop.setIntegerValue(num.longValue());
            }

            break;

        case Types.VARBINARY:
        case Types.BINARY:
            newprop.setJavaObjectValue(rs.getBytes(columnNumber));

            break;

        case Types.BLOB:
        case Types.LONGVARBINARY: {
            InputStream in = rs.getBinaryStream(columnNumber);
            if (in == null) {
                break;
            }
            ByteArrayOutputStream bout = new ByteArrayOutputStream();
            byte[] buffer = new byte[2048];
            int read;
            while ((read = in.read(buffer)) > -1) {
                bout.write(buffer, 0, read);
            }
            newprop.setJavaObjectValue(bout.toByteArray());
        }

            break;

        case Types.LONGVARCHAR:
            try {
                newprop.setStringValue(rs.getString(columnNumber));
            } catch (SQLException x) {
                Reader in = rs.getCharacterStream(columnNumber);
                if (in == null) {
                    newprop.setStringValue(null);
                    break;
                }
                StringBuffer out = new StringBuffer();
                char[] buffer = new char[2048];
                int read;
                while ((read = in.read(buffer)) > -1) {
                    out.append(buffer, 0, read);
                }
                newprop.setStringValue(out.toString());
            }

            break;

        case Types.CHAR:
        case Types.VARCHAR:
        case Types.OTHER:
            newprop.setStringValue(rs.getString(columnNumber));

            break;

        case Types.DATE:
        case Types.TIME:
        case Types.TIMESTAMP:
            newprop.setDateValue(rs.getTimestamp(columnNumber));

            break;

        case Types.NULL:
            newprop.setStringValue(null);

            break;

        case Types.CLOB:
            Clob cl = rs.getClob(columnNumber);
            if (cl == null) {
                newprop.setStringValue(null);
                break;
            }
            char[] c = new char[(int) cl.length()];
            Reader isr = cl.getCharacterStream();
            isr.read(c);
            newprop.setStringValue(String.copyValueOf(c));
            break;

        default:
            newprop.setStringValue(rs.getString(columnNumber));

            break;
        }

        if (rs.wasNull()) {
            newprop.setStringValue(null);
        }

        propBuffer.put(columns[i].getName(), newprop);

        // mark property as clean, since it's fresh from the db
        newprop.dirty = false;
    }

    if (id == null) {
        return null;
    } else {
        Transactor tx = Transactor.getInstance();
        if (tx != null) {
            // Check if the node is already registered with the transactor -
            // it may be in the process of being DELETED, but do return the
            // new node if the old one has been marked as INVALID.
            DbKey key = new DbKey(dbmap, id);
            Node dirtyNode = tx.getDirtyNode(key);
            if (dirtyNode != null && dirtyNode.getState() != Node.INVALID) {
                return dirtyNode;
            }
        }
    }

    Hashtable propMap = new Hashtable();
    DbColumn[] columns2 = dbmap.getColumns();
    for (int i = 0; i < columns2.length; i++) {
        Relation rel = columns2[i].getRelation();
        if (rel != null && rel.isPrimitiveOrReference()) {
            Property prop = (Property) propBuffer.get(columns2[i].getName());

            if (prop == null) {
                continue;
            }

            prop.setName(rel.propName);

            // if the property is a pointer to another node, change the property type to NODE
            if (rel.isReference() && rel.usesPrimaryKey()) {
                // FIXME: References to anything other than the primary key are not supported
                prop.convertToNodeReference(rel);
            }
            propMap.put(rel.propName, prop);
        }
    }

    node.init(dbmap, id, name, protoName, propMap);
    return node;
}

From source file:org.wso2.carbon.dataservices.core.description.query.SQLQuery.java

private void setClobValue(int queryType, String paramName, String value, String paramType,
        PreparedStatement sqlQuery, int i) throws SQLException, DataServiceFault {
    if ("IN".equals(paramType)) {
        if (value == null) {
            sqlQuery.setNull(i + 1, java.sql.Types.CLOB);
        } else {/*www . ja v a  2  s. c o  m*/
            sqlQuery.setClob(i + 1, new BufferedReader(new StringReader(value)), value.length());
        }
    } else if ("INOUT".equals(paramType)) {
        if (value == null) {
            ((CallableStatement) sqlQuery).setNull(i + 1, java.sql.Types.CLOB);
        } else {
            ((CallableStatement) sqlQuery).setClob(i + 1, new BufferedReader(new StringReader(value)),
                    value.length());
        }
        ((CallableStatement) sqlQuery).registerOutParameter(i + 1, java.sql.Types.CLOB);
    } else {
        ((CallableStatement) sqlQuery).registerOutParameter(i + 1, java.sql.Types.CLOB);
    }
}

From source file:org.apache.openjpa.jdbc.sql.DBDictionary.java

/**
 * Return the preferred {@link Types} constant for the given
 * {@link JavaTypes} or {@link JavaSQLTypes} constant.
 *///from  w  w  w  .j ava  2 s . c  om
public int getJDBCType(int metaTypeCode, boolean lob, int precis, int scale) {
    if (lob) {
        switch (metaTypeCode) {
        case JavaTypes.STRING:
        case JavaSQLTypes.ASCII_STREAM:
        case JavaSQLTypes.CHAR_STREAM:
            return getPreferredType(Types.CLOB);
        default:
            return getPreferredType(Types.BLOB);
        }
    }

    switch (metaTypeCode) {
    case JavaTypes.BOOLEAN:
    case JavaTypes.BOOLEAN_OBJ:
        return getPreferredType(Types.BIT);
    case JavaTypes.BYTE:
    case JavaTypes.BYTE_OBJ:
        return getPreferredType(Types.TINYINT);
    case JavaTypes.CHAR:
    case JavaTypes.CHAR_OBJ:
        if (storeCharsAsNumbers)
            return getPreferredType(Types.INTEGER);
        return getPreferredType(Types.CHAR);
    case JavaTypes.DOUBLE:
    case JavaTypes.DOUBLE_OBJ:
        if (precis > 0 || scale > 0) {
            return getPreferredType(Types.NUMERIC);
        } else {
            return getPreferredType(Types.DOUBLE);
        }
    case JavaTypes.FLOAT:
    case JavaTypes.FLOAT_OBJ:
        if (precis > 0 || scale > 0) {
            return getPreferredType(Types.NUMERIC);
        } else {
            return getPreferredType(Types.REAL);
        }
    case JavaTypes.INT:
    case JavaTypes.INT_OBJ:
        return getPreferredType(Types.INTEGER);
    case JavaTypes.LONG:
    case JavaTypes.LONG_OBJ:
        return getPreferredType(Types.BIGINT);
    case JavaTypes.SHORT:
    case JavaTypes.SHORT_OBJ:
        return getPreferredType(Types.SMALLINT);
    case JavaTypes.STRING:
    case JavaTypes.LOCALE:
    case JavaSQLTypes.ASCII_STREAM:
    case JavaSQLTypes.CHAR_STREAM:
        return getPreferredType(Types.VARCHAR);
    case JavaTypes.BIGINTEGER:
        if (storeLargeNumbersAsStrings)
            return getPreferredType(Types.VARCHAR);
        return getPreferredType(Types.BIGINT);
    case JavaTypes.BIGDECIMAL:
        if (storeLargeNumbersAsStrings)
            return getPreferredType(Types.VARCHAR);
        return getPreferredType(Types.NUMERIC);
    case JavaTypes.NUMBER:
        if (storeLargeNumbersAsStrings)
            return getPreferredType(Types.VARCHAR);
        return getPreferredType(Types.NUMERIC);
    case JavaTypes.CALENDAR:
    case JavaTypes.DATE:
        return getPreferredType(Types.TIMESTAMP);
    case JavaSQLTypes.SQL_ARRAY:
        return getPreferredType(Types.ARRAY);
    case JavaSQLTypes.BINARY_STREAM:
    case JavaSQLTypes.BLOB:
    case JavaSQLTypes.BYTES:
        return getPreferredType(Types.BLOB);
    case JavaSQLTypes.CLOB:
        return getPreferredType(Types.CLOB);
    case JavaSQLTypes.SQL_DATE:
        return getPreferredType(Types.DATE);
    case JavaSQLTypes.TIME:
        return getPreferredType(Types.TIME);
    case JavaSQLTypes.TIMESTAMP:
        return getPreferredType(Types.TIMESTAMP);
    default:
        return getPreferredType(Types.BLOB);
    }
}

From source file:helma.objectmodel.db.NodeManager.java

private void setStatementValue(PreparedStatement stmt, int stmtNumber, Property p, int columnType)
        throws SQLException {
    if (p.getValue() == null) {
        stmt.setNull(stmtNumber, columnType);
    } else {/*w  w w.j a  v a2 s . c  o m*/
        switch (columnType) {
        case Types.BIT:
        case Types.BOOLEAN:
            stmt.setBoolean(stmtNumber, p.getBooleanValue());

            break;

        case Types.TINYINT:
        case Types.BIGINT:
        case Types.SMALLINT:
        case Types.INTEGER:
            stmt.setLong(stmtNumber, p.getIntegerValue());

            break;

        case Types.REAL:
        case Types.FLOAT:
        case Types.DOUBLE:
        case Types.NUMERIC:
        case Types.DECIMAL:
            stmt.setDouble(stmtNumber, p.getFloatValue());

            break;

        case Types.LONGVARBINARY:
        case Types.VARBINARY:
        case Types.BINARY:
        case Types.BLOB:
            Object b = p.getJavaObjectValue();
            if (b instanceof byte[]) {
                byte[] buf = (byte[]) b;
                try {
                    stmt.setBytes(stmtNumber, buf);
                } catch (SQLException x) {
                    ByteArrayInputStream bout = new ByteArrayInputStream(buf);
                    stmt.setBinaryStream(stmtNumber, bout, buf.length);
                }
            } else {
                throw new SQLException(
                        "expected byte[] for binary column '" + p.getName() + "', found " + b.getClass());
            }

            break;

        case Types.LONGVARCHAR:
            try {
                stmt.setString(stmtNumber, p.getStringValue());
            } catch (SQLException x) {
                String str = p.getStringValue();
                Reader r = new StringReader(str);
                stmt.setCharacterStream(stmtNumber, r, str.length());
            }

            break;

        case Types.CLOB:
            String val = p.getStringValue();
            Reader isr = new StringReader(val);
            stmt.setCharacterStream(stmtNumber, isr, val.length());

            break;

        case Types.CHAR:
        case Types.VARCHAR:
        case Types.OTHER:
            stmt.setString(stmtNumber, p.getStringValue());

            break;

        case Types.DATE:
        case Types.TIME:
        case Types.TIMESTAMP:
            stmt.setTimestamp(stmtNumber, p.getTimestampValue());

            break;

        case Types.NULL:
            stmt.setNull(stmtNumber, 0);

            break;

        default:
            stmt.setString(stmtNumber, p.getStringValue());

            break;
        }
    }
}

From source file:org.apache.openjpa.jdbc.sql.DBDictionary.java

/**
 * Returns the type name for the specific constant as defined
 * by {@link java.sql.Types}./*from   w ww .  j  av a 2  s .  c  o m*/
 *
 * @param type the type
 * @return the name for the type
 */
public String getTypeName(int type) {
    switch (type) {
    case Types.ARRAY:
        return arrayTypeName;
    case Types.BIGINT:
        return bigintTypeName;
    case Types.BINARY:
        return binaryTypeName;
    case Types.BIT:
        return bitTypeName;
    case Types.BLOB:
        return blobTypeName;
    case Types.BOOLEAN:
        return booleanTypeName;
    case Types.CHAR:
        return charTypeName;
    case Types.CLOB:
        return clobTypeName;
    case Types.DATE:
        return dateTypeName;
    case Types.DECIMAL:
        return decimalTypeName;
    case Types.DISTINCT:
        return distinctTypeName;
    case Types.DOUBLE:
        return doubleTypeName;
    case Types.FLOAT:
        return floatTypeName;
    case Types.INTEGER:
        return integerTypeName;
    case Types.JAVA_OBJECT:
        return javaObjectTypeName;
    case Types.LONGVARBINARY:
        return longVarbinaryTypeName;
    case Types.LONGVARCHAR:
        return longVarcharTypeName;
    case Types.NULL:
        return nullTypeName;
    case Types.NUMERIC:
        return numericTypeName;
    case Types.OTHER:
        return otherTypeName;
    case Types.REAL:
        return realTypeName;
    case Types.REF:
        return refTypeName;
    case Types.SMALLINT:
        return smallintTypeName;
    case Types.STRUCT:
        return structTypeName;
    case Types.TIME:
        return timeTypeName;
    case Types.TIMESTAMP:
        return timestampTypeName;
    case Types.TINYINT:
        return tinyintTypeName;
    case Types.VARBINARY:
        return varbinaryTypeName;
    case Types.VARCHAR:
        return varcharTypeName;
    default:
        return otherTypeName;
    }
}

From source file:org.apache.openjpa.jdbc.sql.DBDictionary.java

/**
 * Return a SQL string to act as a placeholder for the given column.
 */// www.  j  a va  2 s  . c  o m
public String getPlaceholderValueString(Column col) {
    switch (col.getType()) {
    case Types.BIGINT:
    case Types.BIT:
    case Types.INTEGER:
    case Types.NUMERIC:
    case Types.SMALLINT:
    case Types.TINYINT:
        return "0";
    case Types.CHAR:
        return (storeCharsAsNumbers) ? "0" : "' '";
    case Types.CLOB:
    case Types.LONGVARCHAR:
    case Types.VARCHAR:
        return "''";
    case Types.DATE:
        return ZERO_DATE_STR;
    case Types.DECIMAL:
    case Types.DOUBLE:
    case Types.FLOAT:
    case Types.REAL:
        return "0.0";
    case Types.TIME:
        return ZERO_TIME_STR;
    case Types.TIMESTAMP:
        return ZERO_TIMESTAMP_STR;
    default:
        return "NULL";
    }
}

From source file:net.ontopia.persistence.query.sql.GenericSQLGenerator.java

protected void referenceSQLPrimitive(SQLPrimitive primitive, StringBuilder sql, BuildInfo info) {
    switch (primitive.getSQLType()) {
    case Types.VARCHAR:
    case Types.LONGVARCHAR:
    case Types.CLOB:
        sql.append('\'');
        escapeString(primitive.getValue().toString(), sql);
        sql.append('\'');
        return;/*from  w  w w  . j av  a2 s.c  o  m*/
    default:
        sql.append(primitive.getValue());
        //! Object value = primitive.getValue();
        //! return (value == null) ? null : value.toString();
    }
}

From source file:axiom.objectmodel.db.NodeManager.java

/**
 *  Create a new Node from a ResultSet./*  ww w. j a  va2s .c o  m*/
 */
public Node createNode(DbMapping dbm, ResultSet rs, DbColumn[] columns, int offset)
        throws SQLException, IOException, ClassNotFoundException {
    HashMap propBuffer = new HashMap();
    String id = null;
    String name = null;
    String protoName = dbm.getTypeName();
    DbMapping dbmap = dbm;

    Node node = new Node();

    for (int i = 0; i < columns.length; i++) {
        // set prototype?
        if (columns[i].isPrototypeField()) {
            protoName = rs.getString(i + 1 + offset);

            if (protoName != null) {
                dbmap = getDbMapping(protoName);

                if (dbmap == null) {
                    // invalid prototype name!
                    app.logError(ErrorReporter.errorMsg(this.getClass(), "createNode")
                            + "Invalid prototype name: " + protoName + " - using default");
                    dbmap = dbm;
                    protoName = dbmap.getTypeName();
                }
            }
        }

        // set id?
        if (columns[i].isIdField()) {
            id = rs.getString(i + 1 + offset);
            // if id == null, the object doesn't actually exist - return null
            if (id == null) {
                return null;
            }
        }

        // set name?
        if (columns[i].isNameField()) {
            name = rs.getString(i + 1 + offset);
        }

        Property newprop = new Property(node);

        switch (columns[i].getType()) {
        case Types.BIT:
            newprop.setBooleanValue(rs.getBoolean(i + 1 + offset));

            break;

        case Types.TINYINT:
        case Types.BIGINT:
        case Types.SMALLINT:
        case Types.INTEGER:
            newprop.setIntegerValue(rs.getLong(i + 1 + offset));

            break;

        case Types.REAL:
        case Types.FLOAT:
        case Types.DOUBLE:
            newprop.setFloatValue(rs.getDouble(i + 1 + offset));

            break;

        case Types.DECIMAL:
        case Types.NUMERIC:

            BigDecimal num = rs.getBigDecimal(i + 1 + offset);

            if (num == null) {
                break;
            }

            if (num.scale() > 0) {
                newprop.setFloatValue(num.doubleValue());
            } else {
                newprop.setIntegerValue(num.longValue());
            }

            break;

        case Types.VARBINARY:
        case Types.BINARY:
            //                    newprop.setStringValue(rs.getString(i+1+offset));
            newprop.setJavaObjectValue(rs.getBytes(i + 1 + offset));

            break;

        case Types.LONGVARBINARY: {
            InputStream in = rs.getBinaryStream(i + 1 + offset);
            if (in == null) {
                break;
            }
            ByteArrayOutputStream bout = new ByteArrayOutputStream();
            byte[] buffer = new byte[2048];
            int read;
            while ((read = in.read(buffer)) > -1) {
                bout.write(buffer, 0, read);
            }
            newprop.setJavaObjectValue(bout.toByteArray());
        }

            break;
        case Types.LONGVARCHAR:
            try {
                newprop.setStringValue(rs.getString(i + 1 + offset));
            } catch (SQLException x) {
                Reader in = rs.getCharacterStream(i + 1 + offset);
                char[] buffer = new char[2048];
                int read = 0;
                int r;

                while ((r = in.read(buffer, read, buffer.length - read)) > -1) {
                    read += r;

                    if (read == buffer.length) {
                        // grow input buffer
                        char[] newBuffer = new char[buffer.length * 2];

                        System.arraycopy(buffer, 0, newBuffer, 0, buffer.length);
                        buffer = newBuffer;
                    }
                }

                newprop.setStringValue(new String(buffer, 0, read));
            }

            break;

        case Types.CHAR:
        case Types.VARCHAR:
        case Types.OTHER:
            newprop.setStringValue(rs.getString(i + 1 + offset));

            break;

        case Types.DATE:
        case Types.TIME:
        case Types.TIMESTAMP:
            newprop.setDateValue(rs.getTimestamp(i + 1 + offset));

            break;

        case Types.NULL:
            newprop.setStringValue(null);

            break;

        case Types.CLOB:
            Clob cl = rs.getClob(i + 1 + offset);
            if (cl == null) {
                newprop.setStringValue(null);
                break;
            }
            char[] c = new char[(int) cl.length()];
            Reader isr = cl.getCharacterStream();
            isr.read(c);
            newprop.setStringValue(String.copyValueOf(c));
            break;

        default:
            newprop.setStringValue(rs.getString(i + 1 + offset));

            break;
        }

        if (rs.wasNull()) {
            newprop.setStringValue(null);
        }

        propBuffer.put(columns[i].getName(), newprop);

        // mark property as clean, since it's fresh from the db
        newprop.dirty = false;
    }

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

    Hashtable propMap = new Hashtable();
    DbColumn[] columns2 = dbmap.getColumns();
    for (int i = 0; i < columns2.length; i++) {
        Relation rel = columns2[i].getRelation();

        if (rel != null && (rel.reftype == Relation.PRIMITIVE || rel.reftype == Relation.REFERENCE)) {

            Property prop = (Property) propBuffer.get(columns2[i].getName());

            if (prop == null) {
                continue;
            }
            prop.setName(rel.propName);
            // if the property is a pointer to another node, change the property type to NODE
            if ((rel.reftype == Relation.REFERENCE) && rel.usesPrimaryKey()) {
                // FIXME: References to anything other than the primary key are not supported
                prop.convertToNodeReference(rel.otherType, this.app.getCurrentRequestEvaluator().getLayer());
            }
            propMap.put(rel.propName.toLowerCase(), prop);
        }
    }

    node.init(dbmap, id, name, protoName, propMap, safe);

    return node;
}

From source file:axiom.objectmodel.db.NodeManager.java

private void setStatementValues(PreparedStatement stmt, int stmtNumber, Property p, int columnType)
        throws SQLException {
    if (p.getValue() == null) {
        stmt.setNull(stmtNumber, columnType);
    } else {/*from ww  w .j ava 2  s  . c om*/
        switch (columnType) {
        case Types.BIT:
        case Types.TINYINT:
        case Types.BIGINT:
        case Types.SMALLINT:
        case Types.INTEGER:
            stmt.setLong(stmtNumber, p.getIntegerValue());

            break;

        case Types.REAL:
        case Types.FLOAT:
        case Types.DOUBLE:
        case Types.NUMERIC:
        case Types.DECIMAL:
            stmt.setDouble(stmtNumber, p.getFloatValue());

            break;

        case Types.VARBINARY:
        case Types.BINARY:
        case Types.BLOB:
            stmt.setString(stmtNumber, p.getStringValue());

            break;

        case Types.LONGVARBINARY:
        case Types.LONGVARCHAR:
            try {
                stmt.setString(stmtNumber, p.getStringValue());
            } catch (SQLException x) {
                String str = p.getStringValue();
                Reader r = new StringReader(str);

                stmt.setCharacterStream(stmtNumber, r, str.length());
            }

            break;

        case Types.CLOB:
            String val = p.getStringValue();
            Reader isr = new StringReader(val);
            stmt.setCharacterStream(stmtNumber, isr, val.length());

            break;

        case Types.CHAR:
        case Types.VARCHAR:
        case Types.OTHER:
            stmt.setString(stmtNumber, p.getStringValue());

            break;

        case Types.DATE:
        case Types.TIME:
        case Types.TIMESTAMP:
            stmt.setTimestamp(stmtNumber, p.getTimestampValue());

            break;

        case Types.NULL:
            stmt.setNull(stmtNumber, 0);

            break;

        default:
            stmt.setString(stmtNumber, p.getStringValue());

            break;
        }
    }
}

From source file:org.apache.ddlutils.platform.PlatformImplBase.java

/**
 * Helper method esp. for the {@link ModelBasedResultSetIterator} class that retrieves
 * the value for a column from the given result set. If a table was specified,
 * and it contains the column, then the jdbc type defined for the column is used for extracting
 * the value, otherwise the object directly retrieved from the result set is returned.<br/>
 * The method is defined here rather than in the {@link ModelBasedResultSetIterator} class
 * so that concrete platforms can modify its behavior.
 * /*from  w ww .java2 s.co m*/
 * @param resultSet  The result set
 * @param columnName The name of the column
 * @param table      The table
 * @return The value
 */
protected Object getObjectFromResultSet(ResultSet resultSet, String columnName, Table table)
        throws SQLException {
    Column column = (table == null ? null : table.findColumn(columnName, isDelimitedIdentifierModeOn()));
    Object value = null;

    if (column != null) {
        int originalJdbcType = column.getTypeCode();
        int targetJdbcType = getPlatformInfo().getTargetJdbcType(originalJdbcType);
        int jdbcType = originalJdbcType;

        // in general we're trying to retrieve the value using the original type
        // but sometimes we also need the target type:
        if ((originalJdbcType == Types.BLOB) && (targetJdbcType != Types.BLOB)) {
            // we should not use the Blob interface if the database doesn't map to this type 
            jdbcType = targetJdbcType;
        }
        if ((originalJdbcType == Types.CLOB) && (targetJdbcType != Types.CLOB)) {
            // we should not use the Clob interface if the database doesn't map to this type 
            jdbcType = targetJdbcType;
        }
        value = extractColumnValue(resultSet, columnName, 0, jdbcType);
    } else {
        value = resultSet.getObject(columnName);
    }
    return resultSet.wasNull() ? null : value;
}