org.apache.empire.db
Class DBCommandExpr.DBCmdQuery

java.lang.Object
  org.apache.empire.db.DBObject
      org.apache.empire.db.DBExpr
          org.apache.empire.db.DBRowSet
              org.apache.empire.db.DBCommandExpr.DBCmdQuery

All Implemented Interfaces:

Serializable

Enclosing class:

DBCommandExpr

protected static class DBCommandExpr.DBCmdQuery
extends DBRowSet

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.empire.db.DBRowSet

columnReferences, columns, comment, db, log, primaryKey, timestampColumn

Fields inherited from class org.apache.empire.db.DBExpr

CTX_ALIAS, CTX_ALL, CTX_DEFAULT, CTX_FULLNAME, CTX_NAME, CTX_NOPARENTHESES, CTX_VALUE

Constructor Summary

DBCommandExpr.DBCmdQuery(DBCommandExpr cmd, DBColumnExpr[] colList)
Creates a new DBCmdQueryObject

Method Summary

void	addReferencedColumns(Set<DBColumn> list) Internal function to obtain all DBColumnExpr-objects used by this expression.
void	addSQL(StringBuilder buf, long context) Creates the SQL-Command adds the select statement into the SQL-Command.
void	createRecord(DBRecord rec, Connection conn) Returns the error message: ERR_NOTSUPPORTED
void	deleteRecord(Object[] keys, Connection conn) Returns the error message: ERR_NOTSUPPORTED
String	getAlias() Not applicable - returns null
DBColumn[]	getKeyColumns() Prints the error message: ERR_NOTSUPPORTED.
String	getName() Not applicable - returns null
Object[]	getRecordKey(DBRecord rec) Prints the error message: ERR_NOTSUPPORTED.
void	initRecord(DBRecord rec, Object[] keyValues, boolean insert) Returns the error message: ERR_NOTSUPPORTED
boolean	isUpdateable() Not applicable - returns false
void	readRecord(DBRecord rec, Object[] keys, Connection conn) Returns the error message: ERR_NOTSUPPORTED
void	updateRecord(DBRecord rec, Connection conn) Returns the error message: ERR_NOTSUPPORTED

Methods inherited from class org.apache.empire.db.DBRowSet

addColumnReference, completeInitRecord, count, deleteAllReferences, deleteRecord, deleteReferenceRecords, equals, findById, getColumn, getColumn, getColumnIndex, getColumnIndex, getColumnReferences, getColumns, getComment, getDatabase, getFullName, getId, getRenameTablePhrase, getTimestampColumn, initRecord, isColumnReadOnly, isKeyColumn, prepareInitRecord, readRecord, recordExists, recordExists, setComment, setKeyConstraints, setTimestampColumn

Methods inherited from class org.apache.empire.db.DBExpr

getObjectValue, getValueClass

Methods inherited from class java.lang.Object

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

Constructor Detail

DBCommandExpr.DBCmdQuery

public DBCommandExpr.DBCmdQuery(DBCommandExpr cmd,
                                DBColumnExpr[] colList)

Creates a new DBCmdQueryObject

Parameters:

cmd - the command expression

colList -

Method Detail

getName

public String getName()

Not applicable - returns null

Specified by:

getName in class DBRowSet

getAlias

public String getAlias()

Not applicable - returns null

Specified by:

getAlias in class DBRowSet

isUpdateable

public boolean isUpdateable()

Not applicable - returns false

Specified by:

isUpdateable in class DBRowSet

addReferencedColumns

public void addReferencedColumns(Set<DBColumn> list)

Description copied from class: DBExpr

Internal function to obtain all DBColumnExpr-objects used by this expression.

Overrides:

addReferencedColumns in class DBRowSet

Parameters:

list - list to which all used column expressions must be added

See Also:

DBExpr.addReferencedColumns(Set)

addSQL

public void addSQL(StringBuilder buf,
                   long context)

Creates the SQL-Command adds the select statement into the SQL-Command.

Specified by:

addSQL in class DBExpr

Parameters:

buf - the SQL-Command

context - the current SQL-Command context

getKeyColumns

public DBColumn[] getKeyColumns()

Prints the error message: ERR_NOTSUPPORTED.

Overrides:

getKeyColumns in class DBRowSet

Returns:

null

getRecordKey

public Object[] getRecordKey(DBRecord rec)

Prints the error message: ERR_NOTSUPPORTED.

Overrides:

getRecordKey in class DBRowSet

Parameters:

rec - the DBRecord object, contains all fields and the field properties

Returns:

null

initRecord

public void initRecord(DBRecord rec,
                       Object[] keyValues,
                       boolean insert)

Returns the error message: ERR_NOTSUPPORTED

Overrides:

initRecord in class DBRowSet

Parameters:

rec - the Record object

keyValues - an array of the primary key columns

createRecord

public void createRecord(DBRecord rec,
                         Connection conn)

Returns the error message: ERR_NOTSUPPORTED

Specified by:

createRecord in class DBRowSet

readRecord

public void readRecord(DBRecord rec,
                       Object[] keys,
                       Connection conn)

Returns the error message: ERR_NOTSUPPORTED

Overrides:

readRecord in class DBRowSet

Parameters:

rec - the DBRecord object which will hold the record data

keys - the primary key values

conn - a valid JDBC connection.

updateRecord

public void updateRecord(DBRecord rec,
                         Connection conn)

Returns the error message: ERR_NOTSUPPORTED

Overrides:

updateRecord in class DBRowSet

Parameters:

rec - the DBRecord object. contains all fields and the field properties

conn - a valid JDBC connection.

deleteRecord

public void deleteRecord(Object[] keys,
                         Connection conn)

Returns the error message: ERR_NOTSUPPORTED

Specified by:

deleteRecord in class DBRowSet