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javatools.db
Class DbDynamicConstraint  

java.lang.Object
  javatools.db.DbConstraint
      javatools.db.DbDynamicConstraint

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public class DbDynamicConstraint

extends DbConstraint

It is a class representing a "dynamic" constraint, i.e. a constraint that changes references dynamically.

Version:

0.2.0

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Field Summary
private  boolean	automaticBuild
private  java.util.LinkedList	deleteOperations
private  java.util.LinkedList	fatherTables
private  java.util.LinkedList	fatherTablesColumns
private  java.util.LinkedList	refColumns
private  java.util.LinkedList	sonIndexes
private  java.util.LinkedList	sonTables
private  java.util.LinkedList	updateOperations

 

Fields inherited from class javatools.db.DbConstraint

automaticChecking, canDoUpdate, CASCADE, cloned, constraintEmulation, constraints, currentOperation, defaultValues, DELETE_OPERATION, deleteCascadeChildren, DO_NOTHING, fatherColsChildren, fatherRecords, fromList, INSERT_OPERATION, intoList, refColsChildren, refs, searchSets, selector, SET_DEFAULT, SET_NULL, sonsWhere, table, UPDATE_CASCADE, UPDATE_OPERATION, updateCascadeChildren, updateFromLists, updateIntoLists, where

 

Constructor Summary

DbDynamicConstraint(DbAbstractTable tbl)           Creates new DbDynamicConstraint

 

Method Summary
void	addFatherTable(DbAbstractTable fatherTable, DbColumn[] fatherColumns, DbColumn[] pRefColumns, int updateOperation, int deleteOperation)           Adds a new father table.
void	addSonTable(DbAbstractTable sonTable, int fatherIndex)           Adds a son table.
void	build()           Builds all static lists.
private  void	buildArrays()
void	check(int operation)           Performs checking in the table, after setting all dynamic and "static" data.
protected  void	checkFathers()           Checks the fathers.
protected  void	checkThis(int operation)           Performs base checking.
private  void	createReferences()
java.lang.Object[]	getDefaultValues(int index)           Returns the default values of referenced father table whose index is specified.
int	getDeleteOperation(int index)           Returns the delete operation that should be done for the father table whose index is specified.
DbColumn[]	getFatherColumns(int index)           The referenced columns of father table whose index is specified.
DbAbstractTable	getFatherTable(int index)           Returns a father table whose index is specified.
int	getFatherTablesCount()           Returns the number of referenced father tables.
DbColumn[]	getRefColumns(int index)           Returns the referencing columns of THIS table to the father table whose index is specified.
int	getSonFatherIndex(int index)           Returns the index that a son table uses to reference this table.
DbAbstractTable	getSonTable(int index)           Returns a son table whose index is specified.
int	getSonTablesCount()           Returns the number of son tables.
int	getUpdateOperation(int index)           Returns the update operation that should be done for the father table whose index is specified.
void	setAutomaticBuild(boolean value)           Tells this object to build (or not) automatically all lists at all times.
int	update(int operation)           Performs actual update in the table and, eventually, cascades.

 

Methods inherited from class javatools.db.DbConstraint

checkChildren, clear, clone, getAutomaticChecking, getConstraintEmulation, getTable, initLists, initStaticLists, setAutomaticChecking, setConstraintEmulation, setSelector, setValueLists, setWhere, updateThis

 

Methods inherited from class java.lang.Object

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

 

Field Detail

fatherTables

private java.util.LinkedList fatherTables

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sonTables

private java.util.LinkedList sonTables

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updateOperations

private java.util.LinkedList updateOperations

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deleteOperations

private java.util.LinkedList deleteOperations

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fatherTablesColumns

private java.util.LinkedList fatherTablesColumns

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refColumns

private java.util.LinkedList refColumns

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sonIndexes

private java.util.LinkedList sonIndexes

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automaticBuild

private boolean automaticBuild

Constructor Detail

DbDynamicConstraint

public DbDynamicConstraint(DbAbstractTable tbl)

Creates new DbDynamicConstraint

Method Detail

check

public void check(int operation)
           throws DbException

Performs checking in the table, after setting all dynamic and "static" data.

Specified by:

check in class DbConstraint

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update

public int update(int operation)
           throws DbException

Performs actual update in the table and, eventually, cascades. If automatic checking is set, it also checks before updating.

Specified by:

update in class DbConstraint

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addFatherTable

public void addFatherTable(DbAbstractTable fatherTable,
                           DbColumn[] fatherColumns,
                           DbColumn[] pRefColumns,
                           int updateOperation,
                           int deleteOperation)

Adds a new father table.

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addSonTable

public void addSonTable(DbAbstractTable sonTable,
                        int fatherIndex)

Adds a son table.

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getFatherTablesCount

public int getFatherTablesCount()

Returns the number of referenced father tables.

Overrides:

getFatherTablesCount in class DbConstraint

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getSonTablesCount

public int getSonTablesCount()

Returns the number of son tables.

Overrides:

getSonTablesCount in class DbConstraint

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getFatherTable

public DbAbstractTable getFatherTable(int index)
                               throws DbException

Returns a father table whose index is specified.

Overrides:

getFatherTable in class DbConstraint

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getSonTable

public DbAbstractTable getSonTable(int index)
                            throws DbException

Returns a son table whose index is specified.

Overrides:

getSonTable in class DbConstraint

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getSonFatherIndex

public int getSonFatherIndex(int index)
                      throws DbException

Returns the index that a son table uses to reference this table.

Overrides:

getSonFatherIndex in class DbConstraint

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getUpdateOperation

public int getUpdateOperation(int index)
                       throws DbException

Returns the update operation that should be done for the father table whose index is specified.

Overrides:

getUpdateOperation in class DbConstraint

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getDeleteOperation

public int getDeleteOperation(int index)
                       throws DbException

Returns the delete operation that should be done for the father table whose index is specified.

Overrides:

getDeleteOperation in class DbConstraint

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getFatherColumns

public DbColumn[] getFatherColumns(int index)
                            throws DbException

The referenced columns of father table whose index is specified.

Overrides:

getFatherColumns in class DbConstraint

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getRefColumns

public DbColumn[] getRefColumns(int index)
                         throws DbException

Returns the referencing columns of THIS table to the father table whose index is specified.

Overrides:

getRefColumns in class DbConstraint

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setAutomaticBuild

public void setAutomaticBuild(boolean value)

Tells this object to build (or not) automatically all lists at all times.

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build

public void build()
           throws DbException

Builds all static lists.

Overrides:

build in class DbConstraint

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checkThis

protected void checkThis(int operation)
                  throws DbException

Performs base checking.

Overrides:

checkThis in class DbConstraint

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checkFathers

protected void checkFathers()
                     throws DbException

Checks the fathers.

Overrides:

checkFathers in class DbConstraint

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createReferences

private void createReferences()

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getDefaultValues

public java.lang.Object[] getDefaultValues(int index)
                                    throws DbException

Returns the default values of referenced father table whose index is specified.

Overrides:

getDefaultValues in class DbConstraint

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buildArrays

private void buildArrays()

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Home >> All >> javatools >> [ db overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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