org.apache.empire.db.expr.compare

Class DBParenthesisExpr

java.lang.Object

org.apache.empire.db.DBObject

org.apache.empire.db.DBExpr

org.apache.empire.db.expr.compare.DBCompareExpr

org.apache.empire.db.expr.compare.DBParenthesisExpr

All Implemented Interfaces:

Serializable

public class DBParenthesisExpr
extends DBCompareExpr

This class wraps an existing compare expression with parenthesis.

See Also:

Serialized Form

Field Summary

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
DBParenthesisExpr(DBCompareExpr wrap)

Method Summary

Modifier and Type	Method and Description
void	addReferencedColumns(Set<DBColumn> list) Internal function to obtain all DBColumnExpr-objects used by this expression.
void	addSQL(StringBuilder buf, long context) Used to build the SQL command.
DBDatabase	getDatabase() Returns the database object to which this object belongs to.
DBCompareExpr	getWrapped()
boolean	isMutuallyExclusive(DBCompareExpr other)

Methods inherited from class org.apache.empire.db.expr.compare.DBCompareExpr

and, not, or

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

getObjectValue, getValueClass

Methods inherited from class java.lang.Object

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

Constructor Detail

DBParenthesisExpr

public DBParenthesisExpr(DBCompareExpr wrap)

Method Detail

getWrapped

public DBCompareExpr getWrapped()

getDatabase

public DBDatabase getDatabase()

Description copied from class: DBObject

Returns the database object to which this object belongs to. For the database object itself this function will return the this pointer.

Specified by:

getDatabase in class DBObject

Returns:

the database object

isMutuallyExclusive

public boolean isMutuallyExclusive(DBCompareExpr other)

Specified by:

isMutuallyExclusive in class DBCompareExpr

addReferencedColumns

public void addReferencedColumns(Set<DBColumn> list)

Description copied from class: DBExpr

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

Specified by:

addReferencedColumns in class DBExpr

Parameters:

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

addSQL

public void addSQL(StringBuilder buf,
                   long context)

Description copied from class: DBExpr

Used to build the SQL command. SQL for this expression must be appended to StringBuilder.

Specified by:

addSQL in class DBExpr

Parameters:

buf - the string buffer used to build the sql command

context - context flag for this SQL-Command (see CTX_??? constants).