org.apache.ddlutils.platform.sapdb
Class SapDbBuilder

java.lang.Object
  extended by org.apache.ddlutils.platform.SqlBuilder
      extended by org.apache.ddlutils.platform.sapdb.SapDbBuilder
Direct Known Subclasses:
MaxDbBuilder

public class SapDbBuilder
extends SqlBuilder

The SQL Builder for SapDB.

Version:
$Revision: 519537 $

Field Summary
 
Fields inherited from class org.apache.ddlutils.platform.SqlBuilder
_log, SIZE_PLACEHOLDER
 
Constructor Summary
SapDbBuilder(Platform platform)
          Creates a new builder instance.
 
Method Summary
 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, ColumnDefaultValueChange change)
          Processes the change of the default value of a column.
protected  void processChange(Database currentModel, Database desiredModel, ColumnRequiredChange change)
          Processes the change of the required constraint of a column.
protected  void processChange(Database currentModel, Database desiredModel, RemoveColumnChange change)
          Processes the removal of a column from a table.
protected  void processChange(Database currentModel, Database desiredModel, RemovePrimaryKeyChange change)
          Processes the removal of a primary key 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.
protected  void writeExternalForeignKeyCreateStmt(Database database, Table table, ForeignKey key)
          Writes a single foreign key constraint using a alter table statement.
protected  void writeExternalForeignKeyDropStmt(Table table, ForeignKey foreignKey)
          Generates the statement to drop a foreignkey constraint from the database using an alter table statement.
protected  void writeExternalPrimaryKeysCreateStmt(Table table, Column[] primaryKeyColumns)
          Writes the primary key constraints of the table as alter table statements.
 
Methods inherited from class org.apache.ddlutils.platform.SqlBuilder
addEscapedCharSequence, alterDatabase, applyForSelectedChanges, areEqual, columnsDiffer, createExternalForeignKeys, createExternalForeignKeys, createTable, 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, writeExternalIndexCreateStmt, writeExternalIndexDropStmt, writeExternalIndicesCreateStmt, 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

SapDbBuilder

public SapDbBuilder(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

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

writeExternalPrimaryKeysCreateStmt

protected void writeExternalPrimaryKeysCreateStmt(Table table,
                                                  Column[] primaryKeyColumns)
                                           throws IOException
Writes the primary key constraints of the table as alter table statements.

Overrides:
writeExternalPrimaryKeysCreateStmt in class SqlBuilder
Parameters:
table - The table
primaryKeyColumns - The primary key columns
Throws:
IOException

writeExternalForeignKeyCreateStmt

protected void writeExternalForeignKeyCreateStmt(Database database,
                                                 Table table,
                                                 ForeignKey key)
                                          throws IOException
Writes a single foreign key constraint using a alter table statement.

Overrides:
writeExternalForeignKeyCreateStmt in class SqlBuilder
Parameters:
database - The database model
table - The table
key - The foreign key
Throws:
IOException

writeExternalForeignKeyDropStmt

protected void writeExternalForeignKeyDropStmt(Table table,
                                               ForeignKey foreignKey)
                                        throws IOException
Generates the statement to drop a foreignkey constraint from the database using an alter table statement.

Overrides:
writeExternalForeignKeyDropStmt in class SqlBuilder
Parameters:
table - The table
foreignKey - The foreign key
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

processChange

protected void processChange(Database currentModel,
                             Database desiredModel,
                             RemovePrimaryKeyChange change)
                      throws IOException
Processes the removal of a primary key from 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,
                             ColumnRequiredChange change)
                      throws IOException
Processes the change of the required constraint of a column.

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,
                             ColumnDefaultValueChange change)
                      throws IOException
Processes the change of the default value of a column.

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


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