org.mmbase.storage.search
Class BridgeClusterQueries

java.lang.Object
  org.mmbase.storage.search.ClusterQueries
      org.mmbase.storage.search.BridgeClusterQueries

public class BridgeClusterQueries
extends ClusterQueries

Since:

MMBase-2.0

Constructor Summary

BridgeClusterQueries(QueryContext.Bridge qc)

Method Summary

protected String	getBuilder(int nodeNumber)
protected String	getBuilder(String tableAlias, Map<String,Integer> roles) Gets builder corresponding to the specified table alias.
protected int	getBuilderNumber(String nodeManager)
protected StepField	getField(String fieldName, SearchQuery query)
protected Field	getNodeField(String name)
protected int	getNumberForAlias(String alias)
protected String	getParentBuilder(String builder)
QueryContext	getQueryContext()
String	getTrueTableName(String table) Returns the name part of a tablename, and convert it to a buidler name.
protected boolean	isRelation(String builder)
protected boolean	optimizeRelationStep(RelationStep rs, int sourceType, int destType, int role, int searchDir)
protected void	setConstraint(BasicSearchQuery query, String where)

Methods inherited from class org.mmbase.storage.search.ClusterQueries

addFields, addRelationDirections, addSortOrders, addSteps, getBuilderNameFromField, getField, getFieldNameFromField, getMultiLevelSearchQuery, getNodesStep, getSearchDirString, getTableName, getUniqueTableAlias

Methods inherited from class java.lang.Object

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

Constructor Detail

BridgeClusterQueries

public BridgeClusterQueries(QueryContext.Bridge qc)

Method Detail

getQueryContext

public QueryContext getQueryContext()

Specified by:

getQueryContext in class ClusterQueries

getNumberForAlias

protected int getNumberForAlias(String alias)

Specified by:

getNumberForAlias in class ClusterQueries

isRelation

protected boolean isRelation(String builder)

Specified by:

isRelation in class ClusterQueries

getBuilder

protected String getBuilder(int nodeNumber)

Specified by:

getBuilder in class ClusterQueries

getBuilderNumber

protected int getBuilderNumber(String nodeManager)

Specified by:

getBuilderNumber in class ClusterQueries

getParentBuilder

protected String getParentBuilder(String builder)

Specified by:

getParentBuilder in class ClusterQueries

getField

protected StepField getField(String fieldName,
                             SearchQuery query)

Specified by:

getField in class ClusterQueries

getTrueTableName

public String getTrueTableName(String table)

Description copied from class: ClusterQueries

Returns the name part of a tablename, and convert it to a buidler name. This will catch specifying a rolename in stead of a builder name when using relations.

Specified by:

getTrueTableName in class ClusterQueries

Parameters:

table - name of the original table

Returns:

A String containing the table name

optimizeRelationStep

protected boolean optimizeRelationStep(RelationStep rs,
                                       int sourceType,
                                       int destType,
                                       int role,
                                       int searchDir)

Specified by:

optimizeRelationStep in class ClusterQueries

getBuilder

protected String getBuilder(String tableAlias,
                            Map<String,Integer> roles)

Description copied from class: ClusterQueries

Gets builder corresponding to the specified table alias. This amounts to removing the optionally appended digit from the table alias, and interpreting the result as either a tablename or a relation role.

Specified by:

getBuilder in class ClusterQueries

Parameters:

tableAlias - The table alias. Must be tablename or relation role, optionally appended with a digit, e.g. images, images3, related and related4.

roles - Map of tablenames mapped to Integer values, representing the nodenumber of a corresponing RelDef node. This method adds entries for table aliases that specify a role, e.g. "related" or "related2".

Returns:

The builder.

getNodeField

protected Field getNodeField(String name)

Specified by:

getNodeField in class ClusterQueries

setConstraint

protected void setConstraint(BasicSearchQuery query,
                             String where)

Specified by:

setConstraint in class ClusterQueries