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java.lang.Objectorg.apache.empire.commons.ErrorObject
org.apache.empire.db.DBDatabaseDriver
org.apache.empire.db.derby.DBDatabaseDriverDerby
public class DBDatabaseDriverDerby
This class provides support for the Derby database system.
Nested Class Summary | |
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static class |
DBDatabaseDriverDerby.DBCommandDerby
Defines the Derby command type. |
Nested classes/interfaces inherited from class org.apache.empire.db.DBDatabaseDriver |
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DBDatabaseDriver.DBSeqTable, DBDatabaseDriver.DBSetGenKeys |
Nested classes/interfaces inherited from class org.apache.empire.commons.ErrorObject |
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ErrorObject.ObjectErrorInfo |
Field Summary |
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Constructor Summary | |
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DBDatabaseDriverDerby()
Constructor for the Derby database driver. |
Method Summary | |
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DBCommand |
createCommand(DBDatabase db)
Creates a new Derby command object. |
java.lang.String |
getConvertPhrase(DataType destType,
DataType srcType,
java.lang.Object format)
Returns a data type convertion phrase template for this driver The returned template must contain a '?' which will be replaced by a column expression. |
java.lang.String |
getDatabaseName()
returns the name for the database / schema |
boolean |
getDDLScript(DBCmdType type,
DBObject dbo,
DBSQLScript script)
gets an SQL command for creating, modifying or deleting objects in the database (tables, columns, constraints, etc.) |
java.lang.Object |
getNextSequenceValue(DBDatabase db,
java.lang.String seqName,
int minValue,
java.sql.Connection conn)
Returns the next value of a named sequence The numbers are used for fields of type DBExpr.DT_AUTOINC. If a driver supports this function it must return true for isSupported(DBDriverFeature.SEQUENCES). |
java.lang.String |
getSequenceTableName()
returns the name of the sequence table |
java.lang.String |
getSQLPhrase(int phrase)
Gets an sql phrase template for this database system. |
java.sql.Timestamp |
getUpdateTimestamp(java.sql.Connection conn)
Overridden. |
boolean |
isSupported(DBDriverFeature type)
Returns whether or not a particular feature is supported by this driver |
boolean |
isUseSequenceTable()
returns whether a sequence table is used for record identiy management. Default is false. |
void |
setDatabaseName(java.lang.String databaseName)
Sets the name for the database / schema This names is required for creating a database. When a name is set, the driver will automatically execute 'USE dbname' when the database is opened. |
void |
setSequenceTableName(java.lang.String sequenceTableName)
Sets the name of the sequence table. |
void |
setUseSequenceTable(boolean useSequenceTable)
If set to true a special table is used for sequence number generation. Otherwise the AutoIncrement feature of Derby is used identiy fields. |
Methods inherited from class org.apache.empire.db.DBDatabaseDriver |
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appendElementName, appendElementName, appendTextValue, attachDatabase, checkDatabase, close, detachDatabase, detectQuoteName, executeQuery, executeSQL, extractErrorMessage, getDateTimeString, getResultValue, getValueString, isDDLColumnDefaults, prepareStatement, setDDLColumnDefaults |
Methods inherited from class org.apache.empire.commons.ErrorObject |
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clearError, clearErrorInfo, error, error, error, error, error, error, error, getErrorInfo, getErrorMessage, getErrorParams, getErrorSource, getErrorType, getMessage, hasError, internalSetError, isExceptionsEnabled, setExceptionsEnabled, success |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public DBDatabaseDriverDerby()
Method Detail |
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public java.lang.String getDatabaseName()
public void setDatabaseName(java.lang.String databaseName)
databaseName
- the name of the databasepublic boolean isUseSequenceTable()
public void setUseSequenceTable(boolean useSequenceTable)
useSequenceTable
- true to use a sequence table or false otherwise.public java.lang.String getSequenceTableName()
public void setSequenceTableName(java.lang.String sequenceTableName)
sequenceTableName
- the name of the table used for sequence number generationpublic DBCommand createCommand(DBDatabase db)
createCommand
in class DBDatabaseDriver
db
- the database for which to create a command object for
public boolean isSupported(DBDriverFeature type)
isSupported
in class DBDatabaseDriver
type
- type of requrested feature. @see DBDriverFeature
public java.lang.String getSQLPhrase(int phrase)
getSQLPhrase
in class DBDatabaseDriver
phrase
- the identifier of the phrase
DBDatabaseDriver.getSQLPhrase(int)
public java.lang.String getConvertPhrase(DataType destType, DataType srcType, java.lang.Object format)
DBDatabaseDriver
getConvertPhrase
in class DBDatabaseDriver
destType
- the target data typesrcType
- the source data typeformat
- additional formatting information (optional)
DBDatabaseDriver.getConvertPhrase(DataType, DataType, Object)
public java.lang.Object getNextSequenceValue(DBDatabase db, java.lang.String seqName, int minValue, java.sql.Connection conn)
DBDatabaseDriver
getNextSequenceValue
in class DBDatabaseDriver
db
- the databaseseqName
- the name of the sequenceminValue
- the minmum value of the sequenceconn
- a valid database connection
DBDatabaseDriver.getNextSequenceValue(DBDatabase, String, int, Connection)
public boolean getDDLScript(DBCmdType type, DBObject dbo, DBSQLScript script)
DBDatabaseDriver
getDDLScript
in class DBDatabaseDriver
type
- the command typedbo
- the databse objectscript
- the script to complete
DBDatabaseDriver.getDDLScript(DBCmdType, DBObject, DBSQLScript)
public java.sql.Timestamp getUpdateTimestamp(java.sql.Connection conn)
getUpdateTimestamp
in class DBDatabaseDriver
conn
- the connection that might be used
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