org.apache.ddlutils.platform.postgresql
Class PostgreSqlBuilder

java.lang.Object
  extended by org.apache.ddlutils.platform.SqlBuilder
      extended by org.apache.ddlutils.platform.postgresql.PostgreSqlBuilder

public class PostgreSqlBuilder
extends SqlBuilder

The SQL Builder for PostgresSql.

Version:
$Revision: 504014 $

Field Summary
 
Fields inherited from class org.apache.ddlutils.platform.SqlBuilder
_log, SIZE_PLACEHOLDER
 
Constructor Summary
PostgreSqlBuilder(Platform platform)
          Creates a new builder instance.
 
Method Summary
 void createTable(Database database, Table table, Map parameters)
          Outputs the DDL to create the table along with any non-external constraints as well as with external primary keys and indices (but not foreign keys).
 void dropTable(Table table)
          Outputs the DDL to drop the table.
 String getSelectLastIdentityValues(Table table)
          Generates the SQL for querying the id that was created in the last insertion operation.
protected  void processChange(Database currentModel, Database desiredModel, AddColumnChange change)
          Processes the addition of a column to a table.
protected  void processChange(Database currentModel, Database desiredModel, RemoveColumnChange change)
          Processes the removal of a column from a table.
protected  void processTableStructureChanges(Database currentModel, Database desiredModel, Table sourceTable, Table targetTable, Map parameters, List changes)
          Allows database-specific implementations to handle changes in a database specific manner.
protected  void writeColumnAutoIncrementStmt(Table table, Column column)
          Prints that the column is an auto increment column.
 void writeExternalIndexDropStmt(Table table, Index index)
          Generates the statement to drop a non-embedded index from the database.
 
Methods inherited from class org.apache.ddlutils.platform.SqlBuilder
addEscapedCharSequence, alterDatabase, applyForSelectedChanges, areEqual, columnsDiffer, createExternalForeignKeys, createExternalForeignKeys, createTable, createTables, createTables, createTables, createTemporaryTable, createUniqueIdentifier, dropExternalForeignKeys, dropTable, dropTables, dropTemporaryTable, escapeStringValue, findCorrespondingForeignKey, getBareNativeType, getColumnName, getConstraintName, getDefaultValueHelper, getDeleteSql, getDelimitedIdentifier, getForeignKeyName, getIndent, getIndexName, getInsertSql, getMaxColumnNameLength, getMaxConstraintNameLength, getMaxForeignKeyNameLength, getMaxTableNameLength, getNativeDefaultValue, getNativeType, getPlatform, getPlatformInfo, getRealTargetTableFor, getSqlType, getTableName, getTemporaryTableFor, getUpdateSql, getValueAsString, getValueDateFormat, getValueLocale, getValueNumberFormat, getValueTimeFormat, getWriter, isValidDefaultValue, print, printComment, printDefaultValue, printEndOfStatement, printIdentifier, printIndent, println, println, printlnIdentifier, printStartOfEmbeddedStatement, processChange, processChange, processChange, processChange, processChange, processChange, processChange, processChange, processChanges, processTableStructureChanges, processTableStructureChanges, setIndent, setValueDateFormat, setValueLocale, setValueNumberFormat, setValueTimeFormat, setWriter, shortenName, shouldGeneratePrimaryKeys, writeCastExpression, writeColumn, writeColumnDefaultValue, writeColumnDefaultValueStmt, writeColumnNotNullableStmt, writeColumnNullableStmt, writeColumns, writeCopyDataStatement, writeEmbeddedForeignKeysStmt, writeEmbeddedIndexCreateStmt, writeEmbeddedIndicesStmt, writeEmbeddedPrimaryKeysStmt, writeExternalForeignKeyCreateStmt, writeExternalForeignKeyDropStmt, writeExternalIndexCreateStmt, writeExternalIndicesCreateStmt, writeExternalPrimaryKeysCreateStmt, writeForeignReferences, writeLocalReferences, writePrimaryKeyStmt, writeTableAlterStmt, writeTableComment, writeTableCreationStmt, writeTableCreationStmtEnding
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

PostgreSqlBuilder

public PostgreSqlBuilder(Platform platform)
Creates a new builder instance.

Parameters:
platform - The plaftform this builder belongs to
Method Detail

dropTable

public void dropTable(Table table)
               throws IOException
Outputs the DDL to drop the table. Note that this method does not drop foreign keys to this table. Use SqlBuilder.dropTable(Database, Table) if you want that.

Overrides:
dropTable in class SqlBuilder
Parameters:
table - The table to drop
Throws:
IOException

writeExternalIndexDropStmt

public void writeExternalIndexDropStmt(Table table,
                                       Index index)
                                throws IOException
Generates the statement to drop a non-embedded index from the database.

Overrides:
writeExternalIndexDropStmt in class SqlBuilder
Parameters:
table - The table the index is on
index - The index to drop
Throws:
IOException

createTable

public void createTable(Database database,
                        Table table,
                        Map parameters)
                 throws IOException
Outputs the DDL to create the table along with any non-external constraints as well as with external primary keys and indices (but not foreign keys).

Overrides:
createTable in class SqlBuilder
Parameters:
database - The database model
table - The table
parameters - Additional platform-specific parameters for the table creation
Throws:
IOException

writeColumnAutoIncrementStmt

protected void writeColumnAutoIncrementStmt(Table table,
                                            Column column)
                                     throws IOException
Prints that the column is an auto increment column.

Overrides:
writeColumnAutoIncrementStmt in class SqlBuilder
Parameters:
table - The table
column - The column
Throws:
IOException

getSelectLastIdentityValues

public String getSelectLastIdentityValues(Table table)
Generates the SQL for querying the id that was created in the last insertion operation. This is obviously only useful for pk fields that are auto-incrementing. A database that does not support this, will return null.

Overrides:
getSelectLastIdentityValues in class SqlBuilder
Parameters:
table - The table
Returns:
The sql, or null if the database does not support this

processTableStructureChanges

protected void processTableStructureChanges(Database currentModel,
                                            Database desiredModel,
                                            Table sourceTable,
                                            Table targetTable,
                                            Map parameters,
                                            List changes)
                                     throws IOException
Allows database-specific implementations to handle changes in a database specific manner. Any handled change should be applied to the given current model (which is a copy of the real original model) and be removed from the list of changes.
In the default implementation, all AddPrimaryKeyChange changes are applied via an ALTER TABLE ADD CONSTRAINT statement.

Overrides:
processTableStructureChanges in class SqlBuilder
Parameters:
currentModel - The current database schema
desiredModel - The desired database schema
sourceTable - The original table
targetTable - The desired table
parameters - The creation parameters for the table
changes - The change objects for the target table
Throws:
IOException

processChange

protected void processChange(Database currentModel,
                             Database desiredModel,
                             AddColumnChange change)
                      throws IOException
Processes the addition of a column to a table.

Parameters:
currentModel - The current database schema
desiredModel - The desired database schema
change - The change object
Throws:
IOException

processChange

protected void processChange(Database currentModel,
                             Database desiredModel,
                             RemoveColumnChange change)
                      throws IOException
Processes the removal of a column from a table.

Parameters:
currentModel - The current database schema
desiredModel - The desired database schema
change - The change object
Throws:
IOException


Copyright © 2005-2007 Apache Software Foundation. All Rights Reserved.