org.apache.jackrabbit.core.query.lucene

Class QueryImpl

java.lang.Object

org.apache.jackrabbit.core.query.lucene.AbstractQueryImpl

org.apache.jackrabbit.core.query.lucene.QueryImpl

All Implemented Interfaces:

ExecutableQuery

public class QueryImpl
extends AbstractQueryImpl

Implements the ExecutableQuery interface.

Field Summary

Fields

Modifier and Type	Field and Description
static org.apache.jackrabbit.spi.Name	DEFAULT_SELECTOR_NAME The default selector name 's'.
protected org.apache.jackrabbit.spi.commons.query.QueryRootNode	root The root node of the query tree

Fields inherited from class org.apache.jackrabbit.core.query.lucene.AbstractQueryImpl

cache, index, propReg, sessionContext

Constructor Summary

Constructors

Constructor and Description
QueryImpl(SessionContext sessionContext, SearchIndex index, PropertyTypeRegistry propReg, String statement, String language, org.apache.jackrabbit.spi.commons.query.QueryNodeFactory factory) Creates a new query instance from a query string.

Method Summary

Modifier and Type	Method and Description
protected org.apache.jackrabbit.spi.commons.query.qom.ColumnImpl	columnForName(org.apache.jackrabbit.spi.Name propertyName) Returns a column for the given property name and the default selector name.
QueryResult	execute(long offset, long limit) Executes this query and returns a QueryResult.
protected org.apache.jackrabbit.spi.commons.query.qom.ColumnImpl[]	getColumns() Returns the columns for this query.
boolean	needsSystemTree() Returns true if this query node needs items under /jcr:system to be queried.

Methods inherited from class org.apache.jackrabbit.core.query.lucene.AbstractQueryImpl

getQOMFactory, getRespectDocumentOrder, setRespectDocumentOrder

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_SELECTOR_NAME

public static final org.apache.jackrabbit.spi.Name DEFAULT_SELECTOR_NAME

The default selector name 's'.

root

protected final org.apache.jackrabbit.spi.commons.query.QueryRootNode root

The root node of the query tree

Constructor Detail

QueryImpl

public QueryImpl(SessionContext sessionContext,
                 SearchIndex index,
                 PropertyTypeRegistry propReg,
                 String statement,
                 String language,
                 org.apache.jackrabbit.spi.commons.query.QueryNodeFactory factory)
          throws InvalidQueryException

Creates a new query instance from a query string.

Parameters:

sessionContext - component context of the current session

index - the search index.

propReg - the property type registry.

statement - the query statement.

language - the syntax of the query statement.

factory - the query node factory.

Throws:

InvalidQueryException - if the query statement is invalid according to the specified language.

Method Detail

execute

public QueryResult execute(long offset,
                           long limit)
                    throws RepositoryException

Executes this query and returns a QueryResult.

Parameters:

offset - the offset in the total result set

limit - the maximum result size

Returns:

a QueryResult

Throws:

RepositoryException - if an error occurs

getColumns

protected org.apache.jackrabbit.spi.commons.query.qom.ColumnImpl[] getColumns()
                                                                       throws RepositoryException

Returns the columns for this query.

Returns:

array of columns.

Throws:

RepositoryException - if an error occurs.

needsSystemTree

public boolean needsSystemTree()

Returns true if this query node needs items under /jcr:system to be queried.

Specified by:

needsSystemTree in class AbstractQueryImpl

Returns:

true if this query node needs content under /jcr:system to be queried; false otherwise.

columnForName

protected org.apache.jackrabbit.spi.commons.query.qom.ColumnImpl columnForName(org.apache.jackrabbit.spi.Name propertyName)
                                                                        throws RepositoryException

Returns a column for the given property name and the default selector name.

Parameters:

propertyName - the name of the property as well as the column.

Returns:

a column.

Throws:

RepositoryException - if an error occurs while creating the column.