com.pivotal.gemfirexd.load

Class Import

java.lang.Object

com.pivotal.gemfirexd.internal.vti.VTITemplate

com.pivotal.gemfirexd.internal.impl.load.ImportBase

com.pivotal.gemfirexd.load.Import

All Implemented Interfaces:

java.lang.AutoCloseable, java.sql.ResultSet, java.sql.Wrapper

public class Import
extends com.pivotal.gemfirexd.internal.impl.load.ImportBase

Allows users to extend the builtin Import class for custom overrides when loading data using SYSCS_UTIL.IMPORT_TABLE_EX/IMPORT_DATA_EX procedures. The Import procedure implements a ResultSet, so users can override/transform the individual columns or rows being returned from the import procedure. Use the ImportBase.getColumnType(int) method to get the actual type of a column (ImportBase.getMetaData() will only return binary/lob/string/udt types). The ImportBase.getCurrentRow() method will return the whole row as an array of strings while ImportBase.getCurrentLineNumber() returns the current line number (latter can be useful for error messages). To override individual columns, one or more of the following methods can be overridden:

ResultSet.getBytes(int): for BINARY types; data is normally serialized as a hex string

ResultSet.getBlob(int): for BLOB data types; note that if the LOBs are in an external file (IMPORT_XXX_LOBS_FROM_EXTFILE procedure), then an override may need to take care of reading from that external file

ResultSet.getClob(int): for CLOB data types; note that if the LOBs are in an external file (IMPORT_XXX_LOBS_FROM_EXTFILE procedure), then an override may need to take care of reading from that external file

ResultSet.getObject(int): for user-defined types; data is normally serialized as hex string, so typically implementations will invoke ResultSet.getBytes(int) to get the bytes and then deserialize it

ResultSet.getString(int): for all other data types the string read from the file is returned

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	lobsInExtFile
protected boolean	wasNull

Fields inherited from class com.pivotal.gemfirexd.internal.impl.load.ImportBase

MINUS_ONE, TEST_IMPORT

Fields inherited from interface java.sql.ResultSet

CLOSE_CURSORS_AT_COMMIT, CONCUR_READ_ONLY, CONCUR_UPDATABLE, FETCH_FORWARD, FETCH_REVERSE, FETCH_UNKNOWN, HOLD_CURSORS_OVER_COMMIT, TYPE_FORWARD_ONLY, TYPE_SCROLL_INSENSITIVE, TYPE_SCROLL_SENSITIVE

Constructor Summary

Constructors

Constructor and Description
Import(java.lang.String inputFileName, java.lang.String columnDelimiter, java.lang.String characterDelimiter, java.lang.String codeset, long offset, long endPosition, boolean hasColumnDefinitionInFile, int noOfColumnsExpected, java.lang.String columnTypes, boolean lobsInExtFile, int importCounter, java.lang.String columnTypeNames, java.lang.String udtClassNamesString) Constructor to invoke Import from a select statement.
Import(java.lang.String inputFileName, java.lang.String columnDelimiter, java.lang.String characterDelimiter, java.lang.String codeset, long offset, long endPosition, int noOfColumnsExpected, java.lang.String columnTypes, boolean lobsInExtFile, int importCounter, java.lang.String columnTypeNames, java.lang.String udtClassNamesString) Constructor to invoke Import from a select statement.

Method Summary

Modifier and Type	Method and Description
static java.lang.Object	destringifyObject(java.lang.String arg0)
static java.lang.Object	readObject(byte[] arg0)

Methods inherited from class com.pivotal.gemfirexd.internal.impl.load.ImportBase

arrayToString, getColumnType, getCurrentRow, importData, importTable

Methods inherited from class com.pivotal.gemfirexd.internal.vti.VTITemplate

absolute, afterLast, beforeFirst, cancelRowUpdates, clearWarnings, deleteRow, findColumn, first, getArray, getArray, getAsciiStream, getAsciiStream, getBigDecimal, getBigDecimal, getBigDecimal, getBigDecimal, getBinaryStream, getBinaryStream, getBlob, getBoolean, getBoolean, getByte, getByte, getBytes, getCharacterStream, getCharacterStream, getClob, getConcurrency, getCursorName, getDate, getDate, getDate, getDate, getDouble, getDouble, getFetchDirection, getFetchSize, getFloat, getFloat, getHoldability, getInt, getInt, getLong, getLong, getNCharacterStream, getNCharacterStream, getNClob, getNClob, getNString, getNString, getObject, getObject, getObject, getObject, getObject, getRef, getRef, getRowId, getRowId, getShort, getShort, getSQLXML, getSQLXML, getStatement, getString, getTime, getTime, getTime, getTime, getTimestamp, getTimestamp, getTimestamp, getTimestamp, getType, getUnicodeStream, getUnicodeStream, getURL, getURL, getWarnings, insertRow, isAfterLast, isBeforeFirst, isClosed, isFirst, isLast, isWrapperFor, last, moveToCurrentRow, moveToInsertRow, previous, refreshRow, relative, rowDeleted, rowInserted, rowUpdated, setFetchDirection, setFetchSize, unwrap, updateArray, updateArray, updateAsciiStream, updateAsciiStream, updateAsciiStream, updateAsciiStream, updateAsciiStream, updateAsciiStream, updateBigDecimal, updateBigDecimal, updateBinaryStream, updateBinaryStream, updateBinaryStream, updateBinaryStream, updateBinaryStream, updateBinaryStream, updateBlob, updateBlob, updateBlob, updateBlob, updateBlob, updateBlob, updateBoolean, updateBoolean, updateByte, updateByte, updateBytes, updateBytes, updateCharacterStream, updateCharacterStream, updateCharacterStream, updateCharacterStream, updateCharacterStream, updateCharacterStream, updateClob, updateClob, updateClob, updateClob, updateClob, updateClob, updateDate, updateDate, updateDouble, updateDouble, updateFloat, updateFloat, updateInt, updateInt, updateLong, updateLong, updateNCharacterStream, updateNCharacterStream, updateNCharacterStream, updateNCharacterStream, updateNClob, updateNClob, updateNClob, updateNClob, updateNClob, updateNClob, updateNString, updateNString, updateNull, updateNull, updateObject, updateObject, updateObject, updateObject, updateRef, updateRef, updateRow, updateRowId, updateRowId, updateShort, updateShort, updateSQLXML, updateSQLXML, updateString, updateString, updateTime, updateTime, updateTimestamp, updateTimestamp

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.sql.ResultSet

updateObject, updateObject, updateObject, updateObject

Field Detail

lobsInExtFile

protected boolean lobsInExtFile

wasNull

protected boolean wasNull

Constructor Detail

Import

public Import(java.lang.String inputFileName,
              java.lang.String columnDelimiter,
              java.lang.String characterDelimiter,
              java.lang.String codeset,
              long offset,
              long endPosition,
              int noOfColumnsExpected,
              java.lang.String columnTypes,
              boolean lobsInExtFile,
              int importCounter,
              java.lang.String columnTypeNames,
              java.lang.String udtClassNamesString)
       throws java.sql.SQLException

Constructor to invoke Import from a select statement. This will be invoked internally by the import procedures.

Throws:

java.sql.SQLException

Import

public Import(java.lang.String inputFileName,
              java.lang.String columnDelimiter,
              java.lang.String characterDelimiter,
              java.lang.String codeset,
              long offset,
              long endPosition,
              boolean hasColumnDefinitionInFile,
              int noOfColumnsExpected,
              java.lang.String columnTypes,
              boolean lobsInExtFile,
              int importCounter,
              java.lang.String columnTypeNames,
              java.lang.String udtClassNamesString)
       throws java.sql.SQLException

Constructor to invoke Import from a select statement. This will be invoked internally by the import procedures. This have additional argument of controlling whether input file itself have column specification list in the first line or not.

Throws:

java.sql.SQLException

Method Detail

readObject

public static java.lang.Object readObject(byte[] arg0)
                                   throws java.lang.Exception

Throws:

java.lang.Exception

destringifyObject

public static java.lang.Object destringifyObject(java.lang.String arg0)
                                          throws java.lang.Exception

Throws:

java.lang.Exception