oracle.javatools.db.sql

Interface AliasFragment

All Superinterfaces:

ChildDBObject, Copyable, DBObject, SQLFragment

All Known Implementing Classes:

AbstractAliasFragment, FromObject, SelectObject

public interface AliasFragment
extends SQLFragment

SQLFragment that consists of an expression and an alias.

Since:

10.1.3

Field Summary

Fields inherited from interface oracle.javatools.db.sql.SQLFragment

CONNECTBY, FROM, GROUPBY, HAVING, MODEL, NOCYCLE, ORDERBY, ORDERSIBLINGSBY, PRIOR, SELECT, STARTWITH, TYPE, WHERE

Fields inherited from interface oracle.javatools.db.DBObject

COMMENT

Method Summary

Modifier and Type	Method and Description
java.lang.String	getAlias() Returns the alias portion of this SQLFragment.
SQLFragment	getExpression() Returns the expression portion of this SQLFragment.
java.lang.String	getSQLText() Returns the entire fragment (expression plus alias).
java.lang.String	getUsableAlias() Obtains a String that can be used as an alias to this fragment.
void	setAlias(java.lang.String alias) Sets the alias portion of this SQLFragment.
void	setExpression(SQLFragment exp) Sets the expression portion of this SQLFragment.

Methods inherited from interface oracle.javatools.db.sql.SQLFragment

getStartOffset

Methods inherited from interface oracle.javatools.db.ChildDBObject

getParent, setParent

Methods inherited from interface oracle.javatools.db.DBObject

addObjectListener, copyTo, copyTo, copyTo, equals, findOwnedObject, findOwnedObject, findOwnedObject, getID, getName, getOwnedObjects, getOwnedObjects, getProperties, getProperty, getProperty, getReferenceIDs, getType, hashCode, removeObjectListener, removeOwnedObject, replaceReferenceIDs, setID, setName, setProperties, setProperty

Method Detail

getAlias

java.lang.String getAlias()

Returns the alias portion of this SQLFragment.

setAlias

void setAlias(java.lang.String alias)

Sets the alias portion of this SQLFragment.

getExpression

SQLFragment getExpression()

Returns the expression portion of this SQLFragment.

setExpression

void setExpression(SQLFragment exp)

Sets the expression portion of this SQLFragment.

getSQLText

java.lang.String getSQLText()

Returns the entire fragment (expression plus alias).

Specified by:

getSQLText in interface SQLFragment

Returns:

a string representing the SQL text for this object.

getUsableAlias

java.lang.String getUsableAlias()

Obtains a String that can be used as an alias to this fragment. Can return null if there is no alias set, and the expression is not a valid alias. DBObject names are in external form. This is different to getName() because that will always return the expression even if it is not a valid alias.

Returns:

the alias if there is one, otherwise the expression text if it could be a valid alias.