wt.inf.container
Class ContainerSpecHelper

java.lang.Object
  wt.inf.container.ContainerSpecHelper

final class ContainerSpecHelper

extends Object

Utility class used by WTContainerHelper and StandardWTContainerService to build StatementSpecs from ContainerSpecs. This class has no public API.

Supported API: false

Extendable: false

Nested Class Summary

private static class	ContainerSpecHelper.IteratedShareables
(package private) static class	ContainerSpecHelper.QueryConfig Builds and caches the possible descendants of a given container class

Field Summary

private static String	BRANCH_ID
private static String	CLASSNAME
private static boolean	DEBUG
private static DebugWriter	LOG
private static List	MEMBER_INCLUDES
(package private) static ContainerSpecHelper.QueryConfig	queryConfig
private static String	SHARED_OBJECT
private static String	SHARED_VERSION
private static Map	subClassCache
private static String	TARGET_CONTAINER
private static int[]	ZERO

Constructor Summary

(package private)

ContainerSpecHelper()

Method Summary

private static void	addHierarchySpecs(ContainerSpec spec, WTContainerRef ref, CompoundQuerySpec comp, boolean select_classname)
private static void	applySelectState(QuerySpec qs, int select_state) Set the selection criteria of the given QuerySpec based on the given ContainerSpec select state
private static WhereExpression	getDeleteExpression(ContainerSpec spec) Get a search condition for mark for delete based on the spec's delete state
private static StatementSpec	getHierarchySpec(ContainerSpec spec, int select_state) Get a statement that selects the containers that are descendents of the containers in the spec's search containers property
private static Set	getIteratedShareableClasses(boolean clone) Get all shareable classes that implement Iterated and that have database tables in this installation.
private static QuerySpec	getQuerySpecForResultClasses(ContainerSpec spec) Returns a QuerySpec optimized to look in the containers specified in the ContainerSpec's resultClasses Collection.
private static Set	getShareableClasses(boolean clone) Get all shareable classes in this installation.
(package private) static StatementSpec	getStatementForContainersIn(ContainerSpec spec, int select_state) Get a statement that selects the containers in the given spec
(package private) static StatementSpec	getStatementForSearchClasses(ContainerSpec spec, Class[] search_classes, int select_state) Get a statement that selects the WTContained objects contained by a container selected by the given container spec
private static Set	getValidSubClasses(Class search_class, boolean clone) Get the subclasses of the given search class that have database tables.
private static boolean	isResultClass(Class query_class, ContainerSpec spec) Determine if the given container class is one that was selected by the spec for retrieval
private static void	processTableExpression(ContainerSpec spec, ClassTableExpression cte) Update the table expressions excluded classes and included interfaces based on the specifications in the container spec

Methods inherited from class java.lang.Object

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

Field Detail

CLASSNAME

private static final String CLASSNAME

queryConfig

static final ContainerSpecHelper.QueryConfig queryConfig

subClassCache

private static final Map subClassCache

ZERO

private static final int[] ZERO

DEBUG

private static final boolean DEBUG

LOG

private static final DebugWriter LOG

TARGET_CONTAINER

private static final String TARGET_CONTAINER

SHARED_OBJECT

private static final String SHARED_OBJECT

SHARED_VERSION

private static final String SHARED_VERSION

BRANCH_ID

private static final String BRANCH_ID

MEMBER_INCLUDES

private static final List MEMBER_INCLUDES

Constructor Detail

ContainerSpecHelper

ContainerSpecHelper()

Method Detail

getStatementForSearchClasses

static StatementSpec getStatementForSearchClasses(ContainerSpec spec,
                                                  Class[] search_classes,
                                                  int select_state)
                                           throws WTException

Get a statement that selects the WTContained objects contained by a container selected by the given container spec

Parameters:

spec -

search_classes - The subtypes of WTContained to find

select_state -

Throws:

WTException

getStatementForContainersIn

static StatementSpec getStatementForContainersIn(ContainerSpec spec,
                                                 int select_state)
                                          throws WTException

Get a statement that selects the containers in the given spec

Parameters:

spec -

select_state -

Throws:

WTException

getHierarchySpec

private static StatementSpec getHierarchySpec(ContainerSpec spec,
                                              int select_state)
                                       throws WTException

Get a statement that selects the containers that are descendents of the containers in the spec's search containers property

Parameters:

spec -

select_state -

Throws:

WTException

addHierarchySpecs

private static final void addHierarchySpecs(ContainerSpec spec,
                                            WTContainerRef ref,
                                            CompoundQuerySpec comp,
                                            boolean select_classname)
                                     throws WTException

Throws:

WTException

isResultClass

private static boolean isResultClass(Class query_class,
                                     ContainerSpec spec)
                              throws WTException

Determine if the given container class is one that was selected by the spec for retrieval

Parameters:

query_class -

spec -

Throws:

WTException

getDeleteExpression

private static WhereExpression getDeleteExpression(ContainerSpec spec)
                                            throws WTException

Get a search condition for mark for delete based on the spec's delete state

Parameters:

spec -

Throws:

WTException

getQuerySpecForResultClasses

private static final QuerySpec getQuerySpecForResultClasses(ContainerSpec spec)
                                                     throws WTException

Returns a QuerySpec optimized to look in the containers specified in the ContainerSpec's resultClasses Collection.

Throws:

WTException

processTableExpression

private static final void processTableExpression(ContainerSpec spec,
                                                 ClassTableExpression cte)
                                          throws WTException

Update the table expressions excluded classes and included interfaces based on the specifications in the container spec

Parameters:

spec -

cte -

Throws:

WTException

getValidSubClasses

private static Set getValidSubClasses(Class search_class,
                                      boolean clone)
                               throws WTException

Get the subclasses of the given search class that have database tables. The results are cached.

Parameters:

search_class -

clone - If false, the resulting set is an unmodifiable cached instacne

Returns:

Set

Throws:

WTException

getShareableClasses

private static Set getShareableClasses(boolean clone)
                                throws WTException

Get all shareable classes in this installation. The results are cached.

Parameters:

clone - If false, the resulting set is an unmodifiable cached instacne

Returns:

Set

Throws:

WTException

getIteratedShareableClasses

private static Set getIteratedShareableClasses(boolean clone)
                                        throws WTException

Get all shareable classes that implement Iterated and that have database tables in this installation. The results are cached.

Parameters:

clone - If false, the resulting set is an unmodifiable cached instacne

Returns:

Set

Throws:

WTException

applySelectState

private static final void applySelectState(QuerySpec qs,
                                           int select_state)
                                    throws WTException

Set the selection criteria of the given QuerySpec based on the given ContainerSpec select state

Parameters:

qs -

select_state -

Throws:

WTException