org.melati.poem

Class CachedSelection<P extends Persistent>

java.lang.Object

org.melati.poem.CachedQuery<P>

org.melati.poem.CachedSelection<P>

public class CachedSelection<P extends Persistent>
extends CachedQuery<P>

A cached instance of an SQL select query.

Constructor Summary

Constructors

Constructor and Description
CachedSelection(Table<?> table, String whereClause, String orderByClause, Table<?>[] otherTables) Constructor.
CachedSelection(Table<P> table, String whereClause, String orderByClause) Constructor for a single Table query.

Method Summary

Modifier and Type	Method and Description
int	count()
Persistent	firstObject()
Persistent	nth(int n)
List<P>	objectList() Convenience method.
Enumeration<P>	objects()
Enumeration<Integer>	troids()

Methods inherited from class org.melati.poem.CachedQuery

getTable, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

CachedSelection

public CachedSelection(Table<?> table,
                       String whereClause,
                       String orderByClause,
                       Table<?>[] otherTables)

Constructor.

Parameters:

table - the primary Table we are selecting rows from

whereClause - SQL snippet

orderByClause - SQL snippet

otherTables - an Array of Tables which are also referenced in query

CachedSelection

public CachedSelection(Table<P> table,
                       String whereClause,
                       String orderByClause)

Constructor for a single Table query.

Parameters:

table - the primary Table we are selecting rows from

whereClause - SQL snippet

orderByClause - SQL snippet

Method Detail

troids

public Enumeration<Integer> troids()

Returns:

an Enumeration of Table Row Object Ids

objects

public Enumeration<P> objects()

Returns:

an Enumeration of Table Row ReferencePoemType objects

objectList

public List<P> objectList()

Convenience method.

Returns:

a List of Table Row ReferencePoemType objects

firstObject

public Persistent firstObject()

Returns:

the first, often only, result

nth

public Persistent nth(int n)

Parameters:

n - index into ResultSet

Returns:

the row corresponding to the index

count

public int count()

Returns:

the number of results