org.pentaho.di.core.database

Class GenericDatabaseMeta

java.lang.Object

org.pentaho.di.core.database.BaseDatabaseMeta

org.pentaho.di.core.database.GenericDatabaseMeta

All Implemented Interfaces:

Cloneable, DatabaseInterface

Direct Known Subclasses:

RemedyActionRequestSystemDatabaseMeta

public class GenericDatabaseMeta
extends BaseDatabaseMeta
implements DatabaseInterface

Contains Generic Database Connection information through static final members

Since:

11-mrt-2005

Author:

Matt

Field Summary

Fields

Modifier and Type	Field and Description
static String	ATRRIBUTE_CUSTOM_DRIVER_CLASS
static String	ATRRIBUTE_CUSTOM_URL

Fields inherited from class org.pentaho.di.core.database.BaseDatabaseMeta

ATTRIBUTE_CLUSTER_DBNAME_PREFIX, ATTRIBUTE_CLUSTER_HOSTNAME_PREFIX, ATTRIBUTE_CLUSTER_PASSWORD_PREFIX, ATTRIBUTE_CLUSTER_PORT_PREFIX, ATTRIBUTE_CLUSTER_USERNAME_PREFIX, ATTRIBUTE_FORCE_IDENTIFIERS_TO_LOWERCASE, ATTRIBUTE_FORCE_IDENTIFIERS_TO_UPPERCASE, ATTRIBUTE_INITIAL_POOL_SIZE, ATTRIBUTE_IS_CLUSTERED, ATTRIBUTE_MAXIMUM_POOL_SIZE, ATTRIBUTE_MSSQL_DOUBLE_DECIMAL_SEPARATOR, ATTRIBUTE_POOLING_PARAMETER_PREFIX, ATTRIBUTE_PORT_NUMBER, ATTRIBUTE_PREFERRED_SCHEMA_NAME, ATTRIBUTE_PREFIX_EXTRA_OPTION, ATTRIBUTE_PRESERVE_RESERVED_WORD_CASE, ATTRIBUTE_QUOTE_ALL_FIELDS, ATTRIBUTE_SQL_CONNECT, ATTRIBUTE_SUPPORTS_BOOLEAN_DATA_TYPE, ATTRIBUTE_SUPPORTS_TIMESTAMP_DATA_TYPE, ATTRIBUTE_USE_POOLING, ATTRIBUTE_USE_RESULT_STREAMING, AUTOINCREMENT_SQL_FOR_BATCH_ID, poolingParameters, SELECT_COUNT_STATEMENT, SEQUENCE_FOR_BATCH_ID

Constructor Summary

Constructors

Constructor and Description
GenericDatabaseMeta()

Method Summary

Methods

Modifier and Type	Method and Description
int[]	getAccessTypeList() Get the list of possible access types for a database.
String	getAddColumnStatement(String tablename, ValueMetaInterface v, String tk, boolean use_autoinc, String pk, boolean semicolon) Generates the SQL statement to add a column to the specified table For this generic type, i set it to the most common possibility.
String	getDriverClass() Obtain the name of the JDBC driver class that we need to use!
String	getFieldDefinition(ValueMetaInterface v, String tk, String pk, boolean use_autoinc, boolean add_fieldname, boolean add_cr) Describe a Value as a field in the database.
String	getModifyColumnStatement(String tablename, ValueMetaInterface v, String tk, boolean use_autoinc, String pk, boolean semicolon) Generates the SQL statement to modify a column in the specified table
int	getNotFoundTK(boolean use_autoinc) Get the not found technical key.
String	getSQLInsertAutoIncUnknownDimensionRow(String schemaTable, String keyField, String versionField) Get the SQL to insert a new empty unknown record in a dimension.
String	getTruncateTableStatement(String tableName)
String	getURL(String hostname, String port, String databaseName)
String[]	getUsedLibraries()
boolean	isFetchSizeSupported() Checks whether or not the command setFetchSize() is supported by the JDBC driver...
boolean	supportsBitmapIndex()
boolean	supportsPreparedStatementMetadataRetrieval() Most databases allow you to retrieve result metadata by preparing a SELECT statement.

Methods inherited from class org.pentaho.di.core.database.BaseDatabaseMeta

addExtraOption, checkIndexExists, clone, customizeValueFromSQLType, generateColumnAlias, getAccessType, getAttributes, getBackwardsCompatibleSchemaTableCombination, getBackwardsCompatibleTable, getConnectionPoolingProperties, getConnectSQL, getCreateTableStatement, getDatabaseFactoryName, getDatabaseName, getDatabasePortNumberString, getDataTablespace, getDataTablespaceDDL, getDefaultDatabasePort, getDefaultOptions, getDisplayName, getDropColumnStatement, getEndQuote, getExtraOptionIndicator, getExtraOptions, getExtraOptionSeparator, getExtraOptionsHelpText, getExtraOptionValueSeparator, getFunctionAverage, getFunctionCount, getFunctionMaximum, getFunctionMinimum, getFunctionSum, getHostname, getIndexTablespace, getIndexTablespaceDDL, getInitialPoolSize, getLimitClause, getMaxColumnsInIndex, getMaximumPoolSize, getMaxTextFieldLength, getMaxVARCHARLength, getName, getNextBatchId, getNextBatchIdUsingAutoIncSQL, getNextBatchIdUsingLockTables, getNextBatchIdUsingSequence, getObjectId, getPartitioningInformation, getPassword, getPluginId, getPluginName, getPreferredSchemaName, getReservedWords, getSafeFieldname, getSchemaTableCombination, getSelectCountStatement, getSequenceNoMaxValueOption, getServername, getSQLColumnExists, getSQLCurrentSequenceValue, getSQLListOfProcedures, getSQLListOfSchemas, getSQLListOfSequences, getSQLLockTables, getSQLNextSequenceValue, getSQLQueryFields, getSqlScriptStatements, getSQLSequenceExists, getSQLTableExists, getSQLUnlockTables, getSQLValue, getStartQuote, getSynonymTypes, getTablespaceDDL, getTableTypes, getUsername, getValueFromResultSet, getViewTypes, getXulOverlayFile, isChanged, isDefaultingToUppercase, isDisplaySizeTwiceThePrecision, isExplorable, isForcingIdentifiersToLowerCase, isForcingIdentifiersToUpperCase, isMySQLVariant, isPartitioned, isQuoteAllFields, isRequiringTransactionsOnQueries, isStreamingResults, isSystemTable, isUsingConnectionPool, isUsingDoubleDecimalAsSchemaTableSeparator, needsPlaceHolder, needsToLockAllTables, parseStatements, preserveReservedCase, quoteReservedWords, quoteSQLString, releaseSavepoint, requiresCastToVariousForIsNull, requiresCreateTablePrimaryKeyAppend, setAccessType, setAttributes, setChanged, setConnectionPoolingProperties, setConnectSQL, setDatabaseName, setDatabasePortNumberString, setDataTablespace, setDisplayName, setForcingIdentifiersToLowerCase, setForcingIdentifiersToUpperCase, setHostname, setIndexTablespace, setInitialPoolSize, setMaximumPoolSize, setName, setObjectId, setPartitioned, setPartitioningInformation, setPassword, setPluginId, setPluginName, setPreferredSchemaName, setPreserveReservedCase, setQuoteAllFields, setServername, setStreamingResults, setSupportsBooleanDataType, setSupportsTimestampDataType, setUsername, setUsingConnectionPool, setUsingDoubleDecimalAsSchemaTableSeparator, supportsAutoGeneratedKeys, supportsAutoInc, supportsBatchUpdates, supportsBooleanDataType, supportsCatalogs, supportsEmptyTransactions, supportsErrorHandling, supportsErrorHandlingOnBatchUpdates, supportsFloatRoundingOnUpdate, supportsGetBlob, supportsNewLinesInSQL, supportsOptionsInURL, supportsRepository, supportsResultSetMetadataRetrievalOnly, supportsSchemas, supportsSequenceNoMaxValueOption, supportsSequences, supportsSetCharacterStream, supportsSetLong, supportsSetMaxRows, supportsSynonyms, supportsTimestampDataType, supportsTimeStampToDateConversion, supportsTransactions, supportsViews, useSafePoints, useSchemaNameForTableList

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.pentaho.di.core.database.DatabaseInterface

addExtraOption, checkIndexExists, clone, customizeValueFromSQLType, generateColumnAlias, getAccessType, getAttributes, getConnectionPoolingProperties, getConnectSQL, getCreateTableStatement, getDatabaseFactoryName, getDatabaseName, getDatabasePortNumberString, getDataTablespace, getDataTablespaceDDL, getDefaultDatabasePort, getDefaultOptions, getDisplayName, getDropColumnStatement, getEndQuote, getExtraOptionIndicator, getExtraOptions, getExtraOptionSeparator, getExtraOptionsHelpText, getExtraOptionValueSeparator, getFunctionAverage, getFunctionCount, getFunctionMaximum, getFunctionMinimum, getFunctionSum, getHostname, getIndexTablespace, getIndexTablespaceDDL, getInitialPoolSize, getLimitClause, getMaxColumnsInIndex, getMaximumPoolSize, getMaxTextFieldLength, getMaxVARCHARLength, getName, getNextBatchId, getObjectId, getPartitioningInformation, getPassword, getPluginId, getPluginName, getPreferredSchemaName, getReservedWords, getSafeFieldname, getSchemaTableCombination, getSelectCountStatement, getSequenceNoMaxValueOption, getServername, getSQLColumnExists, getSQLCurrentSequenceValue, getSQLListOfProcedures, getSQLListOfSchemas, getSQLListOfSequences, getSQLLockTables, getSQLNextSequenceValue, getSQLQueryFields, getSqlScriptStatements, getSQLSequenceExists, getSQLTableExists, getSQLUnlockTables, getSQLValue, getStartQuote, getSynonymTypes, getTableTypes, getUsername, getValueFromResultSet, getViewTypes, getXulOverlayFile, isChanged, isDefaultingToUppercase, isDisplaySizeTwiceThePrecision, isExplorable, isForcingIdentifiersToLowerCase, isForcingIdentifiersToUpperCase, isMySQLVariant, isPartitioned, isQuoteAllFields, isRequiringTransactionsOnQueries, isStreamingResults, isSystemTable, isUsingConnectionPool, isUsingDoubleDecimalAsSchemaTableSeparator, needsPlaceHolder, needsToLockAllTables, parseStatements, preserveReservedCase, quoteReservedWords, quoteSQLString, releaseSavepoint, requiresCastToVariousForIsNull, requiresCreateTablePrimaryKeyAppend, setAccessType, setAttributes, setChanged, setConnectionPoolingProperties, setConnectSQL, setDatabaseName, setDatabasePortNumberString, setDataTablespace, setDisplayName, setForcingIdentifiersToLowerCase, setForcingIdentifiersToUpperCase, setHostname, setIndexTablespace, setInitialPoolSize, setMaximumPoolSize, setName, setObjectId, setPartitioned, setPartitioningInformation, setPassword, setPluginId, setPluginName, setPreferredSchemaName, setPreserveReservedCase, setQuoteAllFields, setServername, setStreamingResults, setSupportsBooleanDataType, setSupportsTimestampDataType, setUsername, setUsingConnectionPool, setUsingDoubleDecimalAsSchemaTableSeparator, supportsAutoGeneratedKeys, supportsAutoInc, supportsBatchUpdates, supportsBooleanDataType, supportsCatalogs, supportsEmptyTransactions, supportsErrorHandling, supportsErrorHandlingOnBatchUpdates, supportsFloatRoundingOnUpdate, supportsGetBlob, supportsNewLinesInSQL, supportsOptionsInURL, supportsRepository, supportsResultSetMetadataRetrievalOnly, supportsSchemas, supportsSequenceNoMaxValueOption, supportsSequences, supportsSetCharacterStream, supportsSetLong, supportsSetMaxRows, supportsSynonyms, supportsTimestampDataType, supportsTimeStampToDateConversion, supportsTransactions, supportsViews, useSafePoints, useSchemaNameForTableList

Field Detail

ATRRIBUTE_CUSTOM_URL

public static final String ATRRIBUTE_CUSTOM_URL

See Also:

Constant Field Values

ATRRIBUTE_CUSTOM_DRIVER_CLASS

public static final String ATRRIBUTE_CUSTOM_DRIVER_CLASS

See Also:

Constant Field Values

Constructor Detail

GenericDatabaseMeta

public GenericDatabaseMeta()

Method Detail

getAccessTypeList

public int[] getAccessTypeList()

Description copied from interface: DatabaseInterface

Get the list of possible access types for a database.

Specified by:

getAccessTypeList in interface DatabaseInterface

Specified by:

getAccessTypeList in class BaseDatabaseMeta

Returns:

the list of possible access types for a database.

getNotFoundTK

public int getNotFoundTK(boolean use_autoinc)

Description copied from interface: DatabaseInterface

Get the not found technical key.

Specified by:

getNotFoundTK in interface DatabaseInterface

Overrides:

getNotFoundTK in class BaseDatabaseMeta

Parameters:

use_autoinc - Whether or not we want to use an auto increment field

Returns:

the lowest possible technical key to be used as the NOT FOUND row in a slowly changing dimension.

See Also:

DatabaseInterface.getNotFoundTK(boolean)

getDriverClass

public String getDriverClass()

Description copied from interface: DatabaseInterface

Obtain the name of the JDBC driver class that we need to use!

Specified by:

getDriverClass in interface DatabaseInterface

Returns:

the name of the JDBC driver class for the specific database

getURL

public String getURL(String hostname,
            String port,
            String databaseName)

Specified by:

getURL in interface DatabaseInterface

Parameters:

hostname - the hostname

port - the port as a string

databaseName - the database name

Returns:

the URL to use for connecting to the database.

isFetchSizeSupported

public boolean isFetchSizeSupported()

Checks whether or not the command setFetchSize() is supported by the JDBC driver...

Specified by:

isFetchSizeSupported in interface DatabaseInterface

Overrides:

isFetchSizeSupported in class BaseDatabaseMeta

Returns:

true is setFetchSize() is supported!

supportsBitmapIndex

public boolean supportsBitmapIndex()

Specified by:

supportsBitmapIndex in interface DatabaseInterface

Overrides:

supportsBitmapIndex in class BaseDatabaseMeta

Returns:

true if the database supports bitmap indexes

getTruncateTableStatement

public String getTruncateTableStatement(String tableName)

Specified by:

getTruncateTableStatement in interface DatabaseInterface

Overrides:

getTruncateTableStatement in class BaseDatabaseMeta

Parameters:

tableName - The table to be truncated.

Returns:

The SQL statement to truncate a table: remove all rows from it without a transaction

getAddColumnStatement

public String getAddColumnStatement(String tablename,
                           ValueMetaInterface v,
                           String tk,
                           boolean use_autoinc,
                           String pk,
                           boolean semicolon)

Generates the SQL statement to add a column to the specified table For this generic type, i set it to the most common possibility.

Specified by:

getAddColumnStatement in interface DatabaseInterface

Parameters:

tablename - The table to add

v - The column defined as a value

tk - the name of the technical key field

use_autoinc - whether or not this field uses auto increment

pk - the name of the primary key field

semicolon - whether or not to add a semi-colon behind the statement.

Returns:

the SQL statement to add a column to the specified table

getModifyColumnStatement

public String getModifyColumnStatement(String tablename,
                              ValueMetaInterface v,
                              String tk,
                              boolean use_autoinc,
                              String pk,
                              boolean semicolon)

Generates the SQL statement to modify a column in the specified table

Specified by:

getModifyColumnStatement in interface DatabaseInterface

Parameters:

tablename - The table to add

v - The column defined as a value

tk - the name of the technical key field

use_autoinc - whether or not this field uses auto increment

pk - the name of the primary key field

semicolon - whether or not to add a semi-colon behind the statement.

Returns:

the SQL statement to modify a column in the specified table

getFieldDefinition

public String getFieldDefinition(ValueMetaInterface v,
                        String tk,
                        String pk,
                        boolean use_autoinc,
                        boolean add_fieldname,
                        boolean add_cr)

Description copied from interface: DatabaseInterface

Describe a Value as a field in the database.

Specified by:

getFieldDefinition in interface DatabaseInterface

Parameters:

v - The value to describe

tk - The field that's going to be the technical key

pk - The field that's going to be the primary key

use_autoinc - Use autoincrement or not

add_fieldname - Add the fieldname to the definition or not

add_cr - Add a cariage return at the end of the definition or not.

Returns:

a value described as a field in this database.

getUsedLibraries

public String[] getUsedLibraries()

Specified by:

getUsedLibraries in interface DatabaseInterface

Returns:

the required libraries (in lib) for this database connection.

supportsPreparedStatementMetadataRetrieval

public boolean supportsPreparedStatementMetadataRetrieval()

Most databases allow you to retrieve result metadata by preparing a SELECT statement.

Specified by:

supportsPreparedStatementMetadataRetrieval in interface DatabaseInterface

Overrides:

supportsPreparedStatementMetadataRetrieval in class BaseDatabaseMeta

Returns:

true if the database supports retrieval of query metadata from a prepared statement. False if the query needs to be executed first.

getSQLInsertAutoIncUnknownDimensionRow

public String getSQLInsertAutoIncUnknownDimensionRow(String schemaTable,
                                            String keyField,
                                            String versionField)

Get the SQL to insert a new empty unknown record in a dimension.

Specified by:

getSQLInsertAutoIncUnknownDimensionRow in interface DatabaseInterface

Overrides:

getSQLInsertAutoIncUnknownDimensionRow in class BaseDatabaseMeta

Parameters:

schemaTable - the schema-table name to insert into

keyField - The key field

versionField - the version field

Returns:

the SQL to insert the unknown record into the SCD.