io.odysz.semantic.meta

Class SyntityMeta

java.lang.Object

io.odysz.semantics.meta.TableMeta

io.odysz.semantic.meta.SemanticTableMeta

io.odysz.semantic.meta.SyntityMeta

Direct Known Subclasses:

NyquenceMeta, SynodeMeta

public abstract class SyntityMeta
extends SemanticTableMeta

Syncrhonizable entity table meta

Since:

1.4.25

Author:

odys-z@github.com

Field Summary

Fields

Modifier and Type	Field and Description
String	domain exposed to subclass to change
static String	err_requires_synuid
String	synoder Entity creator's id used for identify originators in domain (globally?)
String	synuid
protected HashSet<String>	uids Entity's columns for generation global uid

Fields inherited from class io.odysz.semantics.meta.TableMeta

conn, ddlSqlite, ftypes, pk, tbl

Constructor Summary

Constructors

Constructor and Description
SyntityMeta(String tbl, String pk, String domain, String nodeid, String conn)

Method Summary

Modifier and Type	Method and Description
boolean	autopk()
SyntityMeta	autopk(boolean ak)
String[]	entCols() Generate columns for inserting challenging entities.
HashSet<String>	globalIds()
ArrayList<Object[]>	insertChallengeEnt(String uids, AnResultset challents) Generate data for value clause of the Insert statement, using columns for filter out fields of entity table.
abstract Object[]	insertSelectItems(SynChangeMeta chgm, String entid, AnResultset entities, AnResultset changes) Generate select-items for select clause which is used for Insert, e.g.
<T extends SemanticTableMeta> T	replace() Explicitly call this after this meta with semantics is created, to replace auto found meta from database, which is managed by Connects.
ArrayList<Object[]>	updateEntNvs(SynChangeMeta chgm, String entid, AnResultset entities, AnResultset challenges) Generate set values for the Update statement which is used for updating current entity, e.g.

Methods inherited from class io.odysz.semantics.meta.TableMeta

clone, col, col, col, coltype, conn, conn, constrain, constrain, ftypes, isQuoted, typesInited

Methods inherited from class java.lang.Object

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

Field Detail

err_requires_synuid

public static final String err_requires_synuid

See Also:

Constant Field Values

domain

public final String domain

exposed to subclass to change

See Also:

SyntityMeta(java.lang.String, java.lang.String, java.lang.String, java.lang.String, java.lang.String)

synuid

public final String synuid

synoder

public String synoder

Entity creator's id used for identify originators in domain (globally?)

uids

protected final HashSet<String> uids

Entity's columns for generation global uid

Constructor Detail

SyntityMeta

public SyntityMeta(String tbl,
                   String pk,
                   String domain,
                   String nodeid,
                   String conn)

Parameters:

tbl -

pk -

domain - DB field of orgnization - DBSynmantics

node - synode-id field uses this to filter data for synchronization. Could be changed in the future.

conn -

Method Detail

autopk

public boolean autopk()

autopk

public SyntityMeta autopk(boolean ak)

replace

public <T extends SemanticTableMeta> T replace()
                                        throws io.odysz.transact.x.TransException,
                                               SQLException

Description copied from class: SemanticTableMeta

Explicitly call this after this meta with semantics is created, to replace auto found meta from database, which is managed by Connects.

Overrides:

replace in class SemanticTableMeta

Returns:

this

Throws:

io.odysz.transact.x.TransException

SQLException

globalIds

public HashSet<String> globalIds()
                          throws SemanticException

Throws:

SemanticException

entCols

public String[] entCols()
                 throws SemanticException

Generate columns for inserting challenging entities.

Note:

This method will ignore auto-key field

Returns:

columns in order of rows' fields, values should be same order for insertion

Throws:

SemanticException - this instance is not initialized from db (TableMeta.ftypes is empty).

Since:

1.4.40

insertChallengeEnt

public ArrayList<Object[]> insertChallengeEnt(String uids,
                                              AnResultset challents)
                                       throws SQLException,
                                              SemanticException

Generate data for value clause of the Insert statement, using columns for filter out fields of entity table. Columns are provided by entCols().

Note:

This method will ignore auto-key field

Returns:

values as arguments for calling Insert.value(), the row for the change log

Throws:

SQLException

SemanticException

Since:

1.4.40

updateEntNvs

public ArrayList<Object[]> updateEntNvs(SynChangeMeta chgm,
                                        String entid,
                                        AnResultset entities,
                                        AnResultset challenges)
                                 throws SemanticException,
                                        SQLException

Generate set values for the Update statement which is used for updating current entity, e.g.

update t set c = v1, ...

before

insert into t select 'item-a', 'item-b' where not exists select 1 from t where condition-avoiding-duplicate

org

Parameters:

entid -

entities -

challenges -

Returns:

n-v pairs for argument of Update.nvs(ArrayList)

Throws:

SQLException

SemanticException

insertSelectItems

public abstract Object[] insertSelectItems(SynChangeMeta chgm,
                                           String entid,
                                           AnResultset entities,
                                           AnResultset changes)
                                    throws io.odysz.transact.x.TransException,
                                           SQLException

Generate select-items for select clause which is used for Insert, e.g.

insert into t select 'item-a', 'item-b' where not exists select 1 from t where condition-avoiding-duplicate

Parameters:

entid -

entities -

changes -

Returns:

select-items

Throws:

SQLException

io.odysz.transact.x.TransException