org.melati.poem
Class CachedTailoredQuery

java.lang.Object
  org.melati.poem.TailoredQuery
      org.melati.poem.PreparedTailoredQuery
          org.melati.poem.CachedTailoredQuery

public class CachedTailoredQuery
extends PreparedTailoredQuery

A cached instance of a PreparedTailoredQuery.

Author:

WilliamC At paneris.org

Nested Class Summary

Nested classes/interfaces inherited from class org.melati.poem.TailoredQuery

TailoredQuery.FirstRawTailoredResultSetEnumeration<T>

Field Summary

Fields inherited from class org.melati.poem.TailoredQuery

database, sql

Constructor Summary

CachedTailoredQuery(Column[] selectedColumns, Table[] otherTables, String whereClause, String orderByClause)
Constructor with modifier null.

CachedTailoredQuery(String modifier, Column[] selectedColumns, Table[] otherTables, String whereClause, String orderByClause)
Full Constructor.

Method Summary

Enumeration	selection_firstRaw()
Enumeration	selection() The results of the query.
protected boolean	upToDate()

Methods inherited from class org.melati.poem.TailoredQuery

toString

Methods inherited from class java.lang.Object

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

Constructor Detail

CachedTailoredQuery

public CachedTailoredQuery(String modifier,
                           Column[] selectedColumns,
                           Table[] otherTables,
                           String whereClause,
                           String orderByClause)

Full Constructor.

Parameters:

modifier - SQL modifier eg DISTINCT

selectedColumns - An array of columns we know we need

otherTables - Tables other than ours whose modification state needs to be taken into account

whereClause - Raw SQL

orderByClause - Raw ORDER BY clause

CachedTailoredQuery

public CachedTailoredQuery(Column[] selectedColumns,
                           Table[] otherTables,
                           String whereClause,
                           String orderByClause)

Constructor with modifier null.

Parameters:

selectedColumns - An array of columns we know we need

otherTables - Tables other than ours whose modification state needs to be taken into account

whereClause - Raw SQL

orderByClause - Raw ORDER BY clause

Method Detail

upToDate

protected boolean upToDate()

Returns:

whether the underlying tables have changed since last run.

selection

public Enumeration selection()

The results of the query.

Overrides:

selection in class PreparedTailoredQuery

Returns:

the results (a TailoredResultSetEnumeration) as an Enumeration.

See Also:

TailoredQuery.selection()

selection_firstRaw

public Enumeration selection_firstRaw()

Overrides:

selection_firstRaw in class PreparedTailoredQuery

Returns:

an enumeration of the Columns in the first row of a ResultSet the first row of this TailoredQuery

See Also:

TailoredQuery.selection_firstRaw()