org.wandora.query

Class ExistsDirective

java.lang.Object

org.wandora.query.FilterDirective

org.wandora.query.ExistsDirective

All Implemented Interfaces:

Directive

Deprecated.

public class ExistsDirective
extends FilterDirective

Author:

olli

Field Summary

Fields

Modifier and Type	Field and Description
private Directive	existsDirective Deprecated.
private Locator	typeContext Deprecated.

Fields inherited from class org.wandora.query.FilterDirective

not, query, RES_EXCLUDE, RES_IGNORE, RES_INCLUDE

Constructor Summary

Constructors

Constructor and Description
ExistsDirective(Directive query, Locator typeContext, Directive exists) Deprecated.
ExistsDirective(Directive query, Locator typeContext, Directive exists, boolean not) Deprecated. Creates a new instance of ExistsDirective
ExistsDirective(Directive query, java.lang.String typeContext, Directive exists) Deprecated.
ExistsDirective(Directive query, java.lang.String typeContext, Directive exists, boolean not) Deprecated.

Method Summary

Modifier and Type	Method and Description
protected int	_includeRow(ResultRow row, Topic context, TopicMap tm, java.lang.Object param) Deprecated. Return one of RES_INCLUDE, RES_EXCLUDE or RES_INGORE to indicate how to filter the row.
java.lang.Object	startQuery(QueryContext context) Deprecated. Called when evaluation of this filter query is about to start.

Methods inherited from class org.wandora.query.FilterDirective

endQuery, includeRow, isContextSensitive, query

Methods inherited from class java.lang.Object

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

Field Detail

existsDirective

private Directive existsDirective

Deprecated.

typeContext

private Locator typeContext

Deprecated.

Constructor Detail

ExistsDirective

public ExistsDirective(Directive query,
                       Locator typeContext,
                       Directive exists,
                       boolean not)

Deprecated.

Creates a new instance of ExistsDirective

ExistsDirective

public ExistsDirective(Directive query,
                       Locator typeContext,
                       Directive exists)

Deprecated.

ExistsDirective

public ExistsDirective(Directive query,
                       java.lang.String typeContext,
                       Directive exists,
                       boolean not)

Deprecated.

ExistsDirective

public ExistsDirective(Directive query,
                       java.lang.String typeContext,
                       Directive exists)

Deprecated.

Method Detail

startQuery

public java.lang.Object startQuery(QueryContext context)
                            throws TopicMapException

Deprecated.

Description copied from class: FilterDirective

Called when evaluation of this filter query is about to start. The return value is passed as a parameter to _includeRow and endQuery later. Returning a null value should mean that _includeRow will return RES_EXCLUDE for all rows. So if you don't need a parameter object, just return any object (this, new Object() or whatever) and simply ignore it later.

Overrides:

startQuery in class FilterDirective

Throws:

TopicMapException

_includeRow

protected int _includeRow(ResultRow row,
                          Topic context,
                          TopicMap tm,
                          java.lang.Object param)
                   throws TopicMapException

Deprecated.

Description copied from class: FilterDirective

Return one of RES_INCLUDE, RES_EXCLUDE or RES_INGORE to indicate how to filter the row. RES_INCLUDE means that the row should be included in the resurt except when negation if query is desired. RES_EXCLUDE is the opposite, row is not included except in the case of negation. RES_IGNORE means that row is not included regardless of query being evaluated in negation mode or not. This can be because for example the association doesn't have the assumed players.

Specified by:

_includeRow in class FilterDirective

Throws:

TopicMapException