The base class for constraint checking.
| Methods |
| void |
checkExistingData(Session session)
Check the existing data.
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| void |
checkExistingData(Session session)
Check the existing data. This method is called if the constraint is added
after data has been inserted into the table.
Parameters:
session - the session
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| void |
checkRename()
|
| void |
checkRename()
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| void |
checkRow(Session session, Table t, Row oldRow, Row newRow)
Check if this row fulfils the constraint.
|
| void |
checkRow(Session session, Table t, Row oldRow, Row newRow)
Check if this row fulfils the constraint.
This method throws an exception if not.
Parameters:
session - the session
t - the table
oldRow - the old row
newRow - the new row
|
| int |
compareTo(Constraint other)
|
| int |
compareTo(Constraint other)
|
| Constraint.Type |
getConstraintType()
The constraint type name
|
| Constraint.Type |
getConstraintType()
The constraint type name
Returns:
the name
|
| String |
getCreateSQLWithoutIndexes()
Get the SQL statement to create this constraint.
|
| String |
getCreateSQLWithoutIndexes()
Get the SQL statement to create this constraint.
Returns:
the SQL statement
|
| String |
getDropSQL()
|
| String |
getDropSQL()
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| Table |
getRefTable()
|
| Table |
getRefTable()
|
| HashSet |
getReferencedColumns(Table table)
Get all referenced columns.
|
| HashSet |
getReferencedColumns(Table table)
Get all referenced columns.
Parameters:
table - the table
Returns:
the set of referenced columns
|
| Table |
getTable()
|
| Table |
getTable()
|
| int |
getType()
|
| int |
getType()
|
| Index |
getUniqueIndex()
Get the unique index used to enforce this constraint, or null if no index
is used.
|
| Index |
getUniqueIndex()
Get the unique index used to enforce this constraint, or null if no index
is used.
Returns:
the index
|
| boolean |
isBefore()
Check if this constraint needs to be checked before updating the data.
|
| boolean |
isBefore()
Check if this constraint needs to be checked before updating the data.
Returns:
true if it must be checked before updating
|
| boolean |
isEverything(ExpressionVisitor visitor)
Visit all elements in the constraint.
|
| boolean |
isEverything(ExpressionVisitor visitor)
Visit all elements in the constraint.
Parameters:
visitor - the visitor
Returns:
true if every visited expression returned true, or if there are
no expressions
|
| boolean |
isHidden()
|
| boolean |
isHidden()
|
| void |
rebuild()
This method is called after a related table has changed
(the table was renamed, or columns have been renamed).
|
| void |
rebuild()
This method is called after a related table has changed
(the table was renamed, or columns have been renamed).
|
| void |
setIndexOwner(Index index)
This index is now the owner of the specified index.
|
| void |
setIndexOwner(Index index)
This index is now the owner of the specified index.
Parameters:
index - the index
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| boolean |
usesIndex(Index index)
Check if this constraint needs the specified index.
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| boolean |
usesIndex(Index index)
Check if this constraint needs the specified index.
Parameters:
index - the index
Returns:
true if the index is used
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