com.adobe.cq.searchcollections.qom

Class JoinMerger

java.lang.Object

com.adobe.cq.searchcollections.qom.JoinMerger

Deprecated.

public abstract class JoinMerger
extends Object

A join merger is used by the QueryEngine class to efficiently merge together two parts of a join query.

Each join condition type (equi- and same, child or descendant node joins) has it's own merger class that extends the functionality of this abstract base class with functionality specific to that join condition.

Method Summary

Modifier and Type	Method and Description
static JoinMerger	getJoinMerger(Join join, Map<String,PropertyValue> columns, OperandEvaluator evaluator, QueryObjectModelFactory factory) Deprecated. Static factory method for creating a merger for the given join.
Set<String>	getLeftSelectors() Deprecated.
abstract Set<String>	getLeftValues(Row row) Deprecated.
abstract List<Constraint>	getRightJoinConstraints(List<Row> leftRows) Deprecated.
Set<String>	getRightSelectors() Deprecated.
abstract Set<String>	getRightValues(Row row) Deprecated.
QueryResult	merge(RowIterator leftRows, RowIterator rightRows) Deprecated.

Methods inherited from class java.lang.Object

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

Method Detail

getJoinMerger

public static JoinMerger getJoinMerger(Join join,
                                       Map<String,PropertyValue> columns,
                                       OperandEvaluator evaluator,
                                       QueryObjectModelFactory factory)
                                throws RepositoryException

Deprecated.

Static factory method for creating a merger for the given join.

Parameters:

join - join

columns - columns of the query

evaluator - operand evaluator

factory - QOM factory

Returns:

join merger

Throws:

RepositoryException - if the merger can not be created

getLeftSelectors

public Set<String> getLeftSelectors()

Deprecated.

getRightSelectors

public Set<String> getRightSelectors()

Deprecated.

merge

public QueryResult merge(RowIterator leftRows,
                         RowIterator rightRows)
                  throws RepositoryException

Deprecated.

Throws:

RepositoryException

getLeftValues

public abstract Set<String> getLeftValues(Row row)
                                   throws RepositoryException

Deprecated.

Throws:

RepositoryException

getRightValues

public abstract Set<String> getRightValues(Row row)
                                    throws RepositoryException

Deprecated.

Throws:

RepositoryException

getRightJoinConstraints

public abstract List<Constraint> getRightJoinConstraints(List<Row> leftRows)
                                                  throws RepositoryException

Deprecated.

Throws:

RepositoryException