de.ipcon.db.oql

Class QueryNameSpace

java.lang.Object

de.ipcon.db.oql.QueryNameSpace

public class QueryNameSpace
extends java.lang.Object

This class collects all the roots, joins and their respective aliases of an query to properly render them to an SQL statement when needed.

Author:

Patric Bechtel

Constructor Summary

Constructors

Constructor and Description
QueryNameSpace(SchemaI schema) Creates a query namespace binding a schema and an optional session language.

Method Summary

Modifier and Type	Method and Description
void	addJoin(java.lang.String alias, de.ipcon.db.oql.Join join)
void	addPath(PathNode path)
void	addRoot(java.lang.String alias, java.lang.String entityName, boolean only)
java.lang.StringBuilder	appendJoins(java.lang.StringBuilder sb, java.lang.String rootAlias)
java.lang.StringBuilder	appendRoots(java.lang.StringBuilder sb, java.lang.String rootAlias)
java.lang.String	getDefaultRootAlias()
de.ipcon.db.oql.TableSurrogate	getJoin(java.lang.String alias)
java.lang.String	getNextIdentifier()
PathNode[]	getPathNodes()
de.ipcon.db.oql.Table	getRoot(java.lang.String alias)
de.ipcon.db.oql.Table	getRoot(java.lang.String alias, boolean throwIfNotFound)
SchemaI	getSchema()
boolean	hasRoot(java.lang.String alias)
boolean	hasRoots()

Methods inherited from class java.lang.Object

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

Constructor Detail

QueryNameSpace

public QueryNameSpace(SchemaI schema)

Creates a query namespace binding a schema and an optional session language.

Parameters:

schema - The schema context; must not be null

Throws:

java.lang.IllegalArgumentException - If language is non-null but not a valid ISO 639 code

Method Detail

getSchema

public SchemaI getSchema()

addPath

public void addPath(PathNode path)

addRoot

public void addRoot(java.lang.String alias,
                    java.lang.String entityName,
                    boolean only)
             throws OQLException

Throws:

OQLException

hasRoots

public boolean hasRoots()

hasRoot

public boolean hasRoot(java.lang.String alias)

getDefaultRootAlias

public java.lang.String getDefaultRootAlias()

getRoot

public de.ipcon.db.oql.Table getRoot(java.lang.String alias)

getRoot

public de.ipcon.db.oql.Table getRoot(java.lang.String alias,
                                     boolean throwIfNotFound)

addJoin

public void addJoin(java.lang.String alias,
                    de.ipcon.db.oql.Join join)

getJoin

public de.ipcon.db.oql.TableSurrogate getJoin(java.lang.String alias)

getPathNodes

public PathNode[] getPathNodes()

appendRoots

public java.lang.StringBuilder appendRoots(java.lang.StringBuilder sb,
                                           java.lang.String rootAlias)

appendJoins

public java.lang.StringBuilder appendJoins(java.lang.StringBuilder sb,
                                           java.lang.String rootAlias)

getNextIdentifier

public java.lang.String getNextIdentifier()