oracle.javatools.db.sql
Class AbstractSQLFragment

java.lang.Object
  oracle.javatools.db.AbstractDBObject
      oracle.javatools.db.sql.AbstractSQLFragment

All Implemented Interfaces:

Copyable, DBObject, DynamicPropertySet, SQLFragment

Direct Known Subclasses:

AbstractAliasFragment, AbstractFromObjectUsage, AbstractSchemaObjectUsage, AbstractSQLQuery, CaseStatement, CaseStatement.WhenThen, FKUsage, GroupByObject, IndexObject, JoinObject, Operation, OrderByObject, SimpleSQLFragment, UsingJoinCondition

public abstract class AbstractSQLFragment

extends AbstractDBObject

implements SQLFragment

Abstract superclass for SQLFragment implementations.

Since:

10.1.3

Field Summary

protected static java.lang.String	EMPTY
protected static SQLFragment[]	EMPTY_ARRAY
protected static java.lang.String	NEWLINE
protected static java.lang.String	SPACE

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

FROM, GROUPBY, HAVING, ORDERBY, SELECT, TYPE, WHERE

Fields inherited from interface oracle.javatools.db.DBObject

COMMENT

Constructor Summary

protected

AbstractSQLFragment()

Method Summary

protected void	appendToBuffer(java.lang.StringBuffer query, java.util.List objs, java.lang.String indent) Adds to the given buffer the list of SQLFragments, comma and newline (with indent) seperated.
protected void	changeParent(SQLFragment oldExp, SQLFragment newExp) Changes the parent for the newExp replacing the oldExp in a child slot on this object.
protected void	copyList(java.util.List source, java.util.List target)
protected void	copyList(java.util.List source, java.util.List target, DBObject newParent)
SQLFragment[]	getChildren() Deprecated. use getOwnedObjects()
DBObject	getParent() Returns the parent fragment in the query model.
protected java.lang.String	getTextOrNull(SQLFragment frag)
java.lang.String	getType() Returns the type of this object.
int	hashCode()
protected void	removeParent(SQLFragment frag) Sets the parent to null on frag if the current parent matches this object.
void	setParent(DBObject parent) Sets the parent fragment to this fragment.
protected void	setParents(java.util.List sqlFrags, DBObject parent) Sets the given parent on each SQLFragment in the given List.
java.lang.String	toString()

Methods inherited from class oracle.javatools.db.AbstractDBObject

compareToImpl, copyToImpl, equalsImpl, findOwnedObject, getID, getName, getOwnedObjects, getOwnedObjects, getOwnedObjectsImpl, getProperties, getProperty, getProperty, getReferenceIDs, getReferenceIDsImpl, replaceReferenceIDs, setID, setName, setProperties, setProperty

Methods inherited from class java.lang.Object

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

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

getSQLText

Methods inherited from interface oracle.javatools.db.DBObject

copyTo, findOwnedObject, getID, getName, getOwnedObjects, getOwnedObjects, getReferenceIDs, replaceReferenceIDs, setID, setName

Methods inherited from interface oracle.javatools.util.DynamicPropertySet

getProperties, getProperty, getProperty, setProperties, setProperty

Field Detail

EMPTY_ARRAY

protected static final SQLFragment[] EMPTY_ARRAY

SPACE

protected static final java.lang.String SPACE

See Also:

Constant Field Values

EMPTY

protected static final java.lang.String EMPTY

See Also:

Constant Field Values

NEWLINE

protected static final java.lang.String NEWLINE

See Also:

Constant Field Values

Constructor Detail

AbstractSQLFragment

protected AbstractSQLFragment()

Method Detail

getType

public java.lang.String getType()

Description copied from interface: DBObject

Returns the type of this object. Valid types include things like tables, views, synonyms, and columns.

Specified by:

getType in interface DBObject

Returns:

a string describing the type of object.

getParent

public DBObject getParent()

Description copied from interface: SQLFragment

Returns the parent fragment in the query model.

Specified by:

getParent in interface SQLFragment

setParent

public void setParent(DBObject parent)

Description copied from interface: SQLFragment

Sets the parent fragment to this fragment. A fragment can only have one parent, calling this will overwrite the existing parent. Use copyTo() to create duplicate fragments if the same expression is needed under more than one parent.

Specified by:

setParent in interface SQLFragment

changeParent

protected void changeParent(SQLFragment oldExp,
                            SQLFragment newExp)

Changes the parent for the newExp replacing the oldExp in a child slot on this object. Either newExp or oldExp can be null.

removeParent

protected void removeParent(SQLFragment frag)

Sets the parent to null on frag if the current parent matches this object. This ensures that nodes that have already been reparented don't loose their new parents and should be used over frag.setParent(null).

copyList

protected void copyList(java.util.List source,
                        java.util.List target)

copyList

protected void copyList(java.util.List source,
                        java.util.List target,
                        DBObject newParent)

getTextOrNull

protected java.lang.String getTextOrNull(SQLFragment frag)

appendToBuffer

protected void appendToBuffer(java.lang.StringBuffer query,
                              java.util.List objs,
                              java.lang.String indent)

Adds to the given buffer the list of SQLFragments, comma and newline (with indent) seperated.

setParents

protected void setParents(java.util.List sqlFrags,
                          DBObject parent)

Sets the given parent on each SQLFragment in the given List. Used to ensure the parent on the SELECT or FROM objects.

toString

public java.lang.String toString()

Overrides:

toString in class AbstractDBObject

hashCode

public int hashCode()

Overrides:

hashCode in class AbstractDBObject

getChildren

public SQLFragment[] getChildren()

Deprecated. use getOwnedObjects()

Specified by:

getChildren in interface SQLFragment