wt.pds
Class NavigateStatementBuilder

java.lang.Object
  wt.pds.BasicStatementBuilder
      wt.pds.SelectStatementBuilder
          wt.pds.QuerySpecStatementBuilder
              wt.pds.NavigateStatementBuilder

All Implemented Interfaces:

Cloneable, Externalizable, Serializable, StatementBuilder

public class NavigateStatementBuilder

extends QuerySpecStatementBuilder

implements Externalizable

This class implements statement building for navigate operations.

Supported API: false

Extendable: false

See Also:

Serialized Form

Nested Class Summary

(package private) class

NavigateStatementBuilder.ForeignKeyLinkTableExpression

Field Summary

private static String	CLASSNAME
static boolean	DEBUG
static long	EXTERNALIZATION_VERSION_UID
static int	LINK_INDEX
private static DebugWriter	LOG
protected static long	OLD_FORMAT_VERSION_UID
private static String	RESOURCE
private String	role
(package private) static long	serialVersionUID
private Object	source
static int	TARGET_INDEX

Fields inherited from class wt.pds.QuerySpecStatementBuilder

OLD_SERIAL_VERSION_UID

Fields inherited from class wt.pds.SelectStatementBuilder

chunkCount, LARGE_IN_LIST_WARNING

Fields inherited from class wt.pds.BasicStatementBuilder

DMLGENERATOR

Fields inherited from interface wt.pds.StatementBuilder

CHUNKING_ENABLED, FETCH_SIZE, SQL_STATEMENTS, STATEMENT_COUNT

Constructor Summary

NavigateStatementBuilder()


Supported API: false

NavigateStatementBuilder(QuerySpec a_querySpec, String a_role, Object a_source, Vector a_bindParameters)


Supported API: false

Method Summary

private ClassInfo[]	getForeignKeyClassInfos(ClassInfo alinkInfo) Return the RoleDescriptor for the specified link, role, and object.
(package private) ClassAttribute	getLinkClassNameClassAttribute(LinkInfo a_linkInfo, String a_alias)
(package private) WhereExpression	getLinkWhereExpression(LinkInfo a_linkInfo, int a_linkFromIndex, Vector a_aliases)
private RoleDescriptor	getOtherRole(ClassInfo classInfo) Return the RoleDescriptor for the specified link, role, and object.
private String	getOtherRole(Class a_linkClass, String a_role) Return the other side role for the specified link and role.
private String	getOtherRole(LinkInfo a_linkInfo, String a_role)
protected String	getRole() Gets the value of the attribute: role; Role to navigate Supported API: false
Object	getSource() Gets the value of the attribute: source; Object source to navigate from.
StatementFilter	getStatementFilter(Vector[] a_fromArray) StatementBuilder used to generate SQL for the depth threshold query.
Vector[]	getTables() This method returns an array of Vectors.
private void	processLinkInfo(ClassInfo topTargetInfo, ClassInfo targetInfo, ClassInfo linkInfo, ClassInfo linkClassInfo, Vector[] otherTables, Vector tableVector) Process a linkInfo to determine all possible class combinations.
void	readExternal(ObjectInput input) Reads the non-transient fields of this class from an external source.
private boolean	readOldVersion(ObjectInput input, long readSerialVersionUID, boolean passThrough, boolean superDone) Reads the non-transient fields of this class from an external source, which is not the current version.
protected boolean	readVersion(NavigateStatementBuilder thisObject, ObjectInput input, long readSerialVersionUID, boolean passThrough, boolean superDone) Reads the non-transient fields of this class from an external source.
void	writeExternal(ObjectOutput output) Writes the non-transient fields of this class to an external source.

Methods inherited from class wt.pds.QuerySpecStatementBuilder

appendCondition, appendJoin, buildEmptyAggregateSQL, buildJoinIndexSet, buildSQLStatement, clone, filterArrayChunkProcessors, getArrayChunkProcessors, getFromClause, getGroupByClause, getHavingClause, getJoinClause, getJoinFromIndicies, getJoinString, getJoinWhereClause, getOrderByClause, getQuerySpec, getSingleBindParameters, getStatementBindParameters, getTables, getWhereClause, isAggregateSelect, isDistinct, isForUpdateSet, isQuerySpecSetLock, isUseBind, preBuildSQL, readVersion, resetBindParameterVectors, setForUpdateSet, setJoinClause, setQuerySpec, setSingleBindParameters

Methods inherited from class wt.pds.SelectStatementBuilder

buildSQL, clone, getChunkProcessorCount, getChunkProcessorCount, getDepthThreshold, getTotalCount, isQueryChunkingRequired, isQueryChunkingRequired, isQueryChunkingSupported, isUnionStatement, readVersion, setDepthThreshold

Methods inherited from class wt.pds.BasicStatementBuilder

appendBindParameter, buildSQL, clone, getFetchSize, getSqlStatements, getStatement, getStatementCount, insertBindParameterAt, isChunkingEnabled, readVersion, setChunkingEnabled, setFetchSize, setSqlStatements

Methods inherited from class java.lang.Object

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

Field Detail

RESOURCE

private static final String RESOURCE

See Also:

Constant Field Values

CLASSNAME

private static final String CLASSNAME

role

private String role

source

private Object source

serialVersionUID

static final long serialVersionUID

See Also:

Constant Field Values

EXTERNALIZATION_VERSION_UID

public static final long EXTERNALIZATION_VERSION_UID

See Also:

Constant Field Values

OLD_FORMAT_VERSION_UID

protected static final long OLD_FORMAT_VERSION_UID

See Also:

Constant Field Values

DEBUG

public static final boolean DEBUG

LOG

private static final DebugWriter LOG

TARGET_INDEX

public static final int TARGET_INDEX

See Also:

Constant Field Values

LINK_INDEX

public static final int LINK_INDEX

See Also:

Constant Field Values

Constructor Detail

NavigateStatementBuilder

public NavigateStatementBuilder()

Supported API: false

NavigateStatementBuilder

public NavigateStatementBuilder(QuerySpec a_querySpec,
                                String a_role,
                                Object a_source,
                                Vector a_bindParameters)
                         throws PersistenceException

Supported API: false

Parameters:

a_querySpec -

a_role - The role to navigate.

a_source - The source to navigate from.

a_bindParameters -

Throws:

PersistenceException

Method Detail

writeExternal

public void writeExternal(ObjectOutput output)
                   throws IOException

Writes the non-transient fields of this class to an external source.

Supported API: false

Specified by:

writeExternal in interface Externalizable

Overrides:

writeExternal in class QuerySpecStatementBuilder

Parameters:

output -

Throws:

IOException

readExternal

public void readExternal(ObjectInput input)
                  throws IOException,
                         ClassNotFoundException

Reads the non-transient fields of this class from an external source.

Supported API: false

Specified by:

readExternal in interface Externalizable

Overrides:

readExternal in class QuerySpecStatementBuilder

Parameters:

input -

Throws:

IOException

ClassNotFoundException

readVersion

protected boolean readVersion(NavigateStatementBuilder thisObject,
                              ObjectInput input,
                              long readSerialVersionUID,
                              boolean passThrough,
                              boolean superDone)
                       throws IOException,
                              ClassNotFoundException

Reads the non-transient fields of this class from an external source.

Supported API: false

Parameters:

thisObject -

input -

readSerialVersionUID -

passThrough -

superDone -

Returns:

boolean

Throws:

IOException

ClassNotFoundException

readOldVersion

private boolean readOldVersion(ObjectInput input,
                               long readSerialVersionUID,
                               boolean passThrough,
                               boolean superDone)
                        throws IOException,
                               ClassNotFoundException

Reads the non-transient fields of this class from an external source, which is not the current version.

Parameters:

input -

readSerialVersionUID -

passThrough -

superDone -

Returns:

boolean

Throws:

IOException

ClassNotFoundException

getRole

protected String getRole()

Gets the value of the attribute: role; Role to navigate

Supported API: false

Returns:

String

getSource

public Object getSource()

Gets the value of the attribute: source; Object source to navigate from.

Supported API: false

Returns:

Object

getTables

public Vector[] getTables()
                   throws PersistenceException

This method returns an array of Vectors. Each element of the array corresponds to the TableExpression at the corresponding position in the FromClause. The elements are all possible combinations of concrete TableExpressions that need to be queried.

Supported API: false

Overrides:

getTables in class QuerySpecStatementBuilder

Returns:

Vector[]

Throws:

PersistenceException

getStatementFilter

public StatementFilter getStatementFilter(Vector[] a_fromArray)
                                   throws PersistenceException

StatementBuilder used to generate SQL for the depth threshold query.

Supported API: false

Overrides:

getStatementFilter in class QuerySpecStatementBuilder

Parameters:

a_fromArray - Array of Vectors containing FromExpression instances

Returns:

StatementFilter

Throws:

PersistenceException

processLinkInfo

private void processLinkInfo(ClassInfo topTargetInfo,
                             ClassInfo targetInfo,
                             ClassInfo linkInfo,
                             ClassInfo linkClassInfo,
                             Vector[] otherTables,
                             Vector tableVector)
                      throws WTIntrospectionException,
                             PersistenceException

Process a linkInfo to determine all possible class combinations.

Throws:

WTIntrospectionException

PersistenceException

getOtherRole

private RoleDescriptor getOtherRole(ClassInfo classInfo)
                             throws WTIntrospectionException

Return the RoleDescriptor for the specified link, role, and object.

Throws:

WTIntrospectionException

getOtherRole

private String getOtherRole(Class a_linkClass,
                            String a_role)
                     throws WTIntrospectionException

Return the other side role for the specified link and role.

Throws:

WTIntrospectionException

getOtherRole

private String getOtherRole(LinkInfo a_linkInfo,
                            String a_role)

getForeignKeyClassInfos

private ClassInfo[] getForeignKeyClassInfos(ClassInfo alinkInfo)
                                     throws WTIntrospectionException

Return the RoleDescriptor for the specified link, role, and object.

Throws:

WTIntrospectionException

getLinkClassNameClassAttribute

ClassAttribute getLinkClassNameClassAttribute(LinkInfo a_linkInfo,
                                              String a_alias)
                                        throws WTException

Throws:

WTException

getLinkWhereExpression

WhereExpression getLinkWhereExpression(LinkInfo a_linkInfo,
                                       int a_linkFromIndex,
                                       Vector a_aliases)
                                 throws WTException

Throws:

WTException