org.apache.slide.search.basic
Class BasicQueryEnvelope

java.lang.Object
  org.apache.slide.search.SearchQuery
      org.apache.slide.search.basic.BasicQueryEnvelope

All Implemented Interfaces:

IBasicQuery

public class BasicQueryEnvelope

extends SearchQuery

implements IBasicQuery

Envelopes all queries that are necessary, if a scope covers several stores. For example: /mycoll is mapped to an SQL store, /mycoll/xml is mapped to an XML database. A query with scope /mycoll must be divided in two different queries, the result must be joined.

Version:

$Revision: 1.12 $

Field Summary

Fields inherited from class org.apache.slide.search.SearchQuery

searchToken, structureHelper

Constructor Summary

BasicQueryEnvelope(SearchToken token, QueryScope queryScope)

Method Summary

SearchQueryResult	execute() Executes each involved query and merges the results
IBasicExpressionFactory	getContentExpressionFactory() Should never be called ??
IBasicExpression	getExpression() Method getExpression
int	getLimit() Method getLimit
IBasicExpressionFactory	getPropertiesExpressionFactory() Should never be called ??
PropertyProvider	getPropertyProvider() Method getPropertyProvider
QueryScope	getScope() Method getScope
SearchToken	getSearchToken() Method getSearchToken
java.lang.String	getSlidePath() Method getSlidePath
AbstractStore	getStore() Method getStore
void	init(SearchToken token) Method init
boolean	isLimitDefined() Method isLimitDefined
void	parseQueryElement(org.jdom.Element basicSearchElement, PropertyProvider propertyProvider) parses all subQueries.
RequestedProperties	requestedProperties() Method requestedProperties

Methods inherited from class java.lang.Object

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

Constructor Detail

BasicQueryEnvelope

public BasicQueryEnvelope(SearchToken token,
                          QueryScope queryScope)
                   throws InvalidScopeException

Method Detail

getContentExpressionFactory

public IBasicExpressionFactory getContentExpressionFactory()

Should never be called ??

Specified by:

getContentExpressionFactory in interface IBasicQuery

Returns:

an IBasicExpressionFactory

getPropertiesExpressionFactory

public IBasicExpressionFactory getPropertiesExpressionFactory()

Should never be called ??

Specified by:

getPropertiesExpressionFactory in interface IBasicQuery

Returns:

an IBasicExpressionFactory

parseQueryElement

public void parseQueryElement(org.jdom.Element basicSearchElement,
                              PropertyProvider propertyProvider)
                       throws BadQueryException

parses all subQueries. The scope must be calculated for each subquery.

Specified by:

parseQueryElement in interface IBasicQuery

Parameters:

basicSearchElement - an Element

propertyProvider - a PropertyProvider

Throws:

BadQueryException

execute

public SearchQueryResult execute()
                          throws ServiceAccessException

Executes each involved query and merges the results

Specified by:

execute in interface IBasicQuery

Specified by:

execute in class SearchQuery

Returns:

a SearchQueryResult

Throws:

ServiceAccessException

getStore

public AbstractStore getStore()

Method getStore

Specified by:

getStore in interface IBasicQuery

Returns:

an AbstractStore

getScope

public QueryScope getScope()

Method getScope

Specified by:

getScope in interface IBasicQuery

Returns:

a QueryScope

getPropertyProvider

public PropertyProvider getPropertyProvider()

Method getPropertyProvider

Specified by:

getPropertyProvider in interface IBasicQuery

Returns:

a PropertyProvider

isLimitDefined

public boolean isLimitDefined()

Method isLimitDefined

Specified by:

isLimitDefined in interface IBasicQuery

Returns:

a boolean

getLimit

public int getLimit()

Method getLimit

Specified by:

getLimit in interface IBasicQuery

Returns:

an int

getExpression

public IBasicExpression getExpression()

Method getExpression

Specified by:

getExpression in interface IBasicQuery

Returns:

an IBasicExpression

requestedProperties

public RequestedProperties requestedProperties()

Method requestedProperties

Specified by:

requestedProperties in interface IBasicQuery

Specified by:

requestedProperties in class SearchQuery

Returns:

a RequestedProperties

getSlidePath

public java.lang.String getSlidePath()
                              throws InvalidScopeException

Method getSlidePath

Specified by:

getSlidePath in interface IBasicQuery

Returns:

a String

Throws:

InvalidScopeException

getSearchToken

public SearchToken getSearchToken()

Method getSearchToken

Specified by:

getSearchToken in interface IBasicQuery

Returns:

a SearchToken

init

public void init(SearchToken token)

Description copied from interface: IBasicQuery

Method init

Specified by:

init in interface IBasicQuery

Parameters:

token - a SearchToken