org.apache.nifi.processors.standard.db.impl

Class PostgreSQLDatabaseAdapter

java.lang.Object

org.apache.nifi.processors.standard.db.impl.GenericDatabaseAdapter

org.apache.nifi.processors.standard.db.impl.PostgreSQLDatabaseAdapter

All Implemented Interfaces:

DatabaseAdapter

public class PostgreSQLDatabaseAdapter
extends GenericDatabaseAdapter

Constructor Summary

Constructors

Constructor and Description
PostgreSQLDatabaseAdapter()

Method Summary

Modifier and Type	Method and Description
List<String>	getAlterTableStatements(String tableName, List<ColumnDescription> columnsToAdd, boolean quoteTableName, boolean quoteColumnNames)
String	getDescription()
String	getInsertIgnoreStatement(String table, List<String> columnNames, Collection<String> uniqueKeyColumnNames) Returns an SQL INSERT_IGNORE statement - i.e.
String	getName()
String	getSQLForDataType(int sqlType)
String	getUpsertStatement(String table, List<String> columnNames, Collection<String> uniqueKeyColumnNames) Returns an SQL UPSERT statement - i.e.
boolean	supportsCreateTableIfNotExists()
boolean	supportsInsertIgnore() Tells whether this adapter supports INSERT_IGNORE.
boolean	supportsUpsert() Tells whether this adapter supports UPSERT.

Methods inherited from class org.apache.nifi.processors.standard.db.impl.GenericDatabaseAdapter

getSelectStatement, getSelectStatement

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.nifi.processors.standard.db.DatabaseAdapter

generateTableName, getColumnQuoteString, getCreateTableStatement, getTableAliasClause, getTableQuoteString, getTimesToAddColumnObjectsForUpsert, unwrapIdentifier

Constructor Detail

PostgreSQLDatabaseAdapter

public PostgreSQLDatabaseAdapter()

Method Detail

getName

public String getName()

Specified by:

getName in interface DatabaseAdapter

Overrides:

getName in class GenericDatabaseAdapter

getDescription

public String getDescription()

Specified by:

getDescription in interface DatabaseAdapter

Overrides:

getDescription in class GenericDatabaseAdapter

supportsUpsert

public boolean supportsUpsert()

Description copied from interface: DatabaseAdapter

Tells whether this adapter supports UPSERT.

Returns:

true if UPSERT is supported, false otherwise

supportsInsertIgnore

public boolean supportsInsertIgnore()

Description copied from interface: DatabaseAdapter

Tells whether this adapter supports INSERT_IGNORE.

Returns:

true if INSERT_IGNORE is supported, false otherwise

getUpsertStatement

public String getUpsertStatement(String table,
                                 List<String> columnNames,
                                 Collection<String> uniqueKeyColumnNames)

Description copied from interface: DatabaseAdapter

Returns an SQL UPSERT statement - i.e. UPDATE record or INSERT if id doesn't exist.

There is no standard way of doing this so not all adapters support it - use together with DatabaseAdapter.supportsUpsert()!

Parameters:

table - The name of the table in which to update/insert a record into.

columnNames - The name of the columns in the table to add values to.

uniqueKeyColumnNames - The name of the columns that form a unique key.

Returns:

A String containing the parameterized jdbc SQL statement. The order and number of parameters are the same as that of the provided column list.

getInsertIgnoreStatement

public String getInsertIgnoreStatement(String table,
                                       List<String> columnNames,
                                       Collection<String> uniqueKeyColumnNames)

Description copied from interface: DatabaseAdapter

Returns an SQL INSERT_IGNORE statement - i.e. Ignore record or INSERT if id doesn't exist.

There is no standard way of doing this so not all adapters support it - use together with DatabaseAdapter.supportsInsertIgnore()!

Parameters:

table - The name of the table in which to ignore/insert a record into.

columnNames - The name of the columns in the table to add values to.

uniqueKeyColumnNames - The name of the columns that form a unique key.

Returns:

A String containing the parameterized jdbc SQL statement. The order and number of parameters are the same as that of the provided column list.

supportsCreateTableIfNotExists

public boolean supportsCreateTableIfNotExists()

getAlterTableStatements

public List<String> getAlterTableStatements(String tableName,
                                            List<ColumnDescription> columnsToAdd,
                                            boolean quoteTableName,
                                            boolean quoteColumnNames)

getSQLForDataType

public String getSQLForDataType(int sqlType)