org.apache.ddlutils.platform.sapdb

Class SapDbBuilder

java.lang.Object

org.apache.ddlutils.platform.SqlBuilder

org.apache.ddlutils.platform.sapdb.SapDbBuilder

Direct Known Subclasses:

MaxDbBuilder

public class SapDbBuilder
extends SqlBuilder

The SQL Builder for SapDB.

Field Summary

Fields inherited from class org.apache.ddlutils.platform.SqlBuilder

_log, LINE_SEPARATOR, SIZE_PLACEHOLDER

Constructor Summary

Constructors

Constructor and Description
SapDbBuilder(Platform platform) Creates a new builder instance.

Method Summary

Methods

Modifier and Type	Method and Description
void	addColumn(Database model, Table table, Column newColumn) Prints the SQL for adding a column to a table.
void	changeColumnDefaultValue(Table table, Column column, String newDefaultValue) Writes the SQL to set the default value of the given column.
void	changeColumnRequiredStatus(Table table, Column column, boolean isRequired) Writes the SQL to set the required status of the given column.
void	createPrimaryKey(Table table, Column[] primaryKeyColumns) Writes the primary key constraints of the table as alter table statements.
void	dropColumn(Table table, Column column) Writes the SQL to drop a column.
void	dropForeignKey(Table table, ForeignKey foreignKey) Generates the statement to drop a foreignkey constraint from the database using an alter table statement.
void	dropPrimaryKey(Table table) Writes the SQL to drop the primary key of the given table.
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	writeCastExpression(Column sourceColumn, Column targetColumn) Writes a cast expression that converts the value of the source column to the data type of the target column.
protected void	writeColumnAutoIncrementStmt(Table table, Column column) Prints that the column is an auto increment column.
protected void	writeForeignKeyOnDeleteAction(Table table, ForeignKey foreignKey) Writes the onDelete action for the given foreign key.

Methods inherited from class org.apache.ddlutils.platform.SqlBuilder

addEscapedCharSequence, areEqual, columnsDiffer, copyData, createForeignKey, createForeignKeys, createForeignKeys, createIndex, createIndexes, createTable, createTable, createTables, createTables, createTables, createTemporaryTable, createUniqueIdentifier, dropForeignKeys, dropIndex, dropTable, dropTables, dropTemporaryTable, escapeStringValue, getBareNativeType, getColumnName, getConstraintName, getDefaultValueHelper, getDeleteSql, getDelimitedIdentifier, getForeignKeyName, getIndent, getIndexName, getInsertSql, getMaxColumnNameLength, getMaxConstraintNameLength, getMaxForeignKeyNameLength, getMaxTableNameLength, getNativeDefaultValue, getNativeType, getPlatform, getPlatformInfo, getSizeSpec, getSqlType, getSqlType, getTableName, getUpdateSql, getUpdateSql, getValueAsString, getValueDateFormat, getValueLocale, getValueNumberFormat, getValueTimeFormat, getWriter, isValidDefaultValue, print, printComment, printDefaultValue, printEndOfStatement, printIdentifier, printIndent, println, println, printlnIdentifier, printStartOfEmbeddedStatement, setIndent, setValueDateFormat, setValueLocale, setValueNumberFormat, setValueTimeFormat, setWriter, shortenName, shouldGeneratePrimaryKeys, writeAddIdentityColumnUsingAlterTable, writeColumn, writeColumnDefaultValue, writeColumnDefaultValueStmt, writeColumnNotNullableStmt, writeColumnNullableStmt, writeColumns, writeEmbeddedForeignKeysStmt, writeEmbeddedIndexCreateStmt, writeEmbeddedIndicesStmt, writeEmbeddedPrimaryKeysStmt, writeForeignKeyOnUpdateAction, 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

createPrimaryKey

public void createPrimaryKey(Table table,
                    Column[] primaryKeyColumns)
                      throws IOException

Writes the primary key constraints of the table as alter table statements.

Overrides:

createPrimaryKey in class SqlBuilder

Parameters:

table - The table

primaryKeyColumns - The primary key columns

Throws:

IOException

writeForeignKeyOnDeleteAction

protected void writeForeignKeyOnDeleteAction(Table table,
                                 ForeignKey foreignKey)
                                      throws IOException

Writes the onDelete action for the given foreign key.

Overrides:

writeForeignKeyOnDeleteAction in class SqlBuilder

Parameters:

table - The table

foreignKey - The foreignkey

Throws:

IOException

dropForeignKey

public void dropForeignKey(Table table,
                  ForeignKey foreignKey)
                    throws IOException

Generates the statement to drop a foreignkey constraint from the database using an alter table statement.

Overrides:

dropForeignKey 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

addColumn

public void addColumn(Database model,
             Table table,
             Column newColumn)
               throws IOException

Prints the SQL for adding a column to a table.

Overrides:

addColumn in class SqlBuilder

Parameters:

model - The database model

table - The table

newColumn - The new column

Throws:

IOException

dropColumn

public void dropColumn(Table table,
              Column column)
                throws IOException

Writes the SQL to drop a column.

Parameters:

table - The table

column - The column to drop

Throws:

IOException

dropPrimaryKey

public void dropPrimaryKey(Table table)
                    throws IOException

Writes the SQL to drop the primary key of the given table.

Parameters:

table - The table

Throws:

IOException

changeColumnRequiredStatus

public void changeColumnRequiredStatus(Table table,
                              Column column,
                              boolean isRequired)
                                throws IOException

Writes the SQL to set the required status of the given column.

Parameters:

table - The table

column - The column to change

isRequired - Whether the column shall be required

Throws:

IOException

changeColumnDefaultValue

public void changeColumnDefaultValue(Table table,
                            Column column,
                            String newDefaultValue)
                              throws IOException

Writes the SQL to set the default value of the given column.

Parameters:

table - The table

column - The column to change

newDefaultValue - The new default value

Throws:

IOException

writeCastExpression

protected void writeCastExpression(Column sourceColumn,
                       Column targetColumn)
                            throws IOException

Writes a cast expression that converts the value of the source column to the data type of the target column. Per default, simply the name of the source column is written thereby assuming that any casts happen implicitly.

Overrides:

writeCastExpression in class SqlBuilder

Parameters:

sourceColumn - The source column

targetColumn - The target column

Throws:

IOException