org.apache.empire.dbms.oracle

Class DBCommandOracle

java.lang.Object

org.apache.empire.db.DBObject

org.apache.empire.db.DBExpr

org.apache.empire.db.DBCommandExpr

org.apache.empire.db.DBCommand

org.apache.empire.dbms.oracle.DBCommandOracle

All Implemented Interfaces:

Cloneable

public class DBCommandOracle
extends DBCommand

This class handles the special features of an oracle database.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.empire.db.DBCommandExpr

DBCommandExpr.DBCmdColumn, DBCommandExpr.DBCmdQuery

Field Summary

Fields

Modifier and Type	Field and Description
protected DBCompareExpr	connectBy
protected int	limitRows
protected String	optimizerHint
protected int	skipRows
protected DBCompareExpr	startWith

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

autoPrepareStmt, cmdParams, groupBy, having, joins, log, select, selectDistinct, set, where

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

cmdQuery, orderBy

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

Constructors

Constructor and Description
DBCommandOracle(boolean autoPrepareStmt) Constructs an oracle command object.

Method Summary

Modifier and Type	Method and Description
protected void	addDeleteForTable(StringBuilder buf, DBRowSet table) Creates an Oracle specific delete statement.
protected void	addDeleteWithJoins(StringBuilder buf, DBRowSet table)
protected void	addUpdateForTable(StringBuilder buf, DBRowSet table)
protected void	addUpdateWithJoins(StringBuilder buf, DBRowSet table)
void	clear() Clears the entire command object.
void	clearConnectBy() Clears the connectBy Expression.
void	clearLimit() Clears a limit or offset set by calling limit() or offset()
void	connectByPrior(DBCompareExpr expr)
String	getOptimizerHint()
Object[]	getParamValues() Returns an array of parameter values for a prepared statement.
void	getSelect(StringBuilder buf) Creates an Oracle specific select statement that supports special features of the Oracle DBMS like e.g.
DBCommandOracle	limitRows(int limitRows) Overridden to change return type from DBCommandExpr to DBCommand
void	setOptimizerHint(String optimizerHint)
void	setOptimizerIndexHint(DBIndex index)
DBCommandOracle	skipRows(int skipRows) Overridden to change return type from DBCommandExpr to DBCommand
void	startWith(DBCompareExpr expr)

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

addFrom, addGrouping, addJoin, addJoins, addOrder, addParam, addParam, addParam, addParam, addReferencedColumns, addSelect, addWhere, addWhere, addWhereConstraints, appendCompareColExprs, clearGroupBy, clearHaving, clearJoin, clearSelect, clearSelectDistinct, clearSet, clearWhere, clone, completeParamUsage, getDatabase, getDataType, getDelete, getGroupBy, getHavingConstraints, getInsert, getJoins, getRowSetList, getSelectExpressions, getSelectExprList, getSetExpressions, getUpdate, getWhereConstraints, groupAll, groupBy, groupBy, groupBy, hasAggegation, hasConstraintOn, hasConstraintOn, hasGroupBy, hasHavingConstraintOn, hasHavingConstraints, hasJoinOn, hasJoinOn, hasSelectExpr, hasSelectExpr, hasSetExpr, hasSetExprOn, hasWhereConstraintOn, hasWhereConstraints, having, isAutoPrepareStmt, isPreparedStatementsEnabled, isSelectDistinct, isValid, join, join, join, join, join, join, join, joinLeft, joinRight, mergeSubqueryParams, notifyParamUsage, orderBy, orderBy, orderBy, qualifyAll, removeAllCommandParams, removeCommandParams, removeConstraint, removeConstraintOn, removeHavingConstraint, removeHavingConstraintOn, removeJoinsOn, removeJoinsOn, removeSelect, removeWhereConstraint, removeWhereConstraintOn, replaceSelect, resetParamUsage, select, select, select, selectDistinct, selectQualified, selectQualified, set, set, setConstraint, useCmdParam, where, where

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

addListExpr, addSQL, clearOrderBy, getCmdColumn, getInsertInto, getInsertInto, getInsertInto, getOrderBy, getSelect, hasOrderBy, intersect, result, union, unionAll

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

getObjectValue

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

checkParamNull

Methods inherited from class java.lang.Object

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

Field Detail

connectBy

protected DBCompareExpr connectBy

startWith

protected DBCompareExpr startWith

optimizerHint

protected String optimizerHint

limitRows

protected int limitRows

skipRows

protected int skipRows

Constructor Detail

DBCommandOracle

public DBCommandOracle(boolean autoPrepareStmt)

Constructs an oracle command object.

Parameters:

db - the oracle database object this command belongs to

See Also:

DBCommand

Method Detail

getOptimizerHint

public String getOptimizerHint()

setOptimizerHint

public void setOptimizerHint(String optimizerHint)

setOptimizerIndexHint

public void setOptimizerIndexHint(DBIndex index)

clear

public void clear()

Description copied from class: DBCommand

Clears the entire command object.

Overrides:

clear in class DBCommand

See Also:

DBCommand.clear()

clearConnectBy

public void clearConnectBy()

Clears the connectBy Expression.

connectByPrior

public void connectByPrior(DBCompareExpr expr)

startWith

public void startWith(DBCompareExpr expr)

limitRows

public DBCommandOracle limitRows(int limitRows)

Description copied from class: DBCommand

Overridden to change return type from DBCommandExpr to DBCommand

Overrides:

limitRows in class DBCommand

skipRows

public DBCommandOracle skipRows(int skipRows)

Description copied from class: DBCommand

Overridden to change return type from DBCommandExpr to DBCommand

Overrides:

skipRows in class DBCommand

clearLimit

public void clearLimit()

Description copied from class: DBCommandExpr

Clears a limit or offset set by calling limit() or offset()

Overrides:

clearLimit in class DBCommandExpr

getSelect

public void getSelect(StringBuilder buf)

Creates an Oracle specific select statement that supports special features of the Oracle DBMS like e.g. CONNECT BY PRIOR

Overrides:

getSelect in class DBCommand

Parameters:

buf - the SQL statement

getParamValues

public Object[] getParamValues()

Description copied from class: DBCommand

Returns an array of parameter values for a prepared statement. The parameters are supplied only after getSelect(), getUpdate(), getInsert() or getDelete() have been called

Overrides:

getParamValues in class DBCommand

Returns:

an array of parameter values for a prepared statement

addUpdateForTable

protected void addUpdateForTable(StringBuilder buf,
                                 DBRowSet table)

Overrides:

addUpdateForTable in class DBCommand

addUpdateWithJoins

protected void addUpdateWithJoins(StringBuilder buf,
                                  DBRowSet table)

Overrides:

addUpdateWithJoins in class DBCommand

addDeleteForTable

protected void addDeleteForTable(StringBuilder buf,
                                 DBRowSet table)

Creates an Oracle specific delete statement.

Overrides:

addDeleteForTable in class DBCommand

addDeleteWithJoins

protected void addDeleteWithJoins(StringBuilder buf,
                                  DBRowSet table)

Overrides:

addDeleteWithJoins in class DBCommand