ForeignKeyConstraint Leave feedback
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Inheritance: java.lang.Object, com.groupdocs.assembly.system.data.Constraint
public class ForeignKeyConstraint extends Constraint
Represents an action restriction enforced on a set of columns in a primary key/foreign key relationship when a value or row is either deleted or updated.
| Constructor | Description |
|---|---|
| ForeignKeyConstraint(String constraintName, DataColumn[] parentColumns, DataColumn[] childColumns) | Initializes a new instance of the ForeignKeyConstraint class with the specified name, and arrays of parent and child DataColumn objects. |
| ForeignKeyConstraint(DataColumn parentColumn, DataColumn childColumn) | Initializes a new instance of the ForeignKeyConstraint class, and arrays of parent and child DataColumn objects. |
| ForeignKeyConstraint(String constraintName, DataColumn parentColumn, DataColumn childColumn) | Initializes a new instance of the ForeignKeyConstraint class with the specified name, parent and child DataColumn objects. |
| Method | Description |
|---|---|
| getDeleteRule() | |
| getUpdateRule() | |
| hashCode() | |
| equals(Object key) | |
| getColumns() | |
| getRelatedColumns() | The parent columns of this constraint. |
| getTable() | |
| getRelatedTable() | |
| getAcceptRejectRule() |
public ForeignKeyConstraint(String constraintName, DataColumn[] parentColumns, DataColumn[] childColumns)
Initializes a new instance of the ForeignKeyConstraint class with the specified name, and arrays of parent and child DataColumn objects.
Parameters:
| Parameter | Type | Description |
|---|---|---|
| constraintName | java.lang.String | the specified constraint name |
| parentColumns | DataColumn[] | an array of parent DataColumn |
| childColumns | DataColumn[] | an array of child DataColumn |
public ForeignKeyConstraint(DataColumn parentColumn, DataColumn childColumn)
Initializes a new instance of the ForeignKeyConstraint class, and arrays of parent and child DataColumn objects.
Parameters:
| Parameter | Type | Description |
|---|---|---|
| parentColumn | DataColumn | an array of parent DataColumn |
| childColumn | DataColumn | an array of child DataColumn |
public ForeignKeyConstraint(String constraintName, DataColumn parentColumn, DataColumn childColumn)
Initializes a new instance of the ForeignKeyConstraint class with the specified name, parent and child DataColumn objects.
Parameters:
| Parameter | Type | Description |
|---|---|---|
| constraintName | java.lang.String | the specified constraint name |
| parentColumn | DataColumn | parent DataColumn |
| childColumn | DataColumn | child DataColumn |
public Rule getDeleteRule()
Returns: Rule - the action Rule that occurs across this constraint when a row is deleted.
public Rule getUpdateRule()
Returns: Rule - the action Rule that occurs across this constraint on when a row is updated.
public int hashCode()
Returns: int
public boolean equals(Object key)
Parameters:
| Parameter | Type | Description |
|---|---|---|
| key | java.lang.Object |
Returns: boolean
public DataColumn[] getColumns()
Returns: com.groupdocs.assembly.system.data.DataColumn[] - the child columns of this constraint.
public DataColumn[] getRelatedColumns()
The parent columns of this constraint.
Returns: com.groupdocs.assembly.system.data.DataColumn[] - parent columns of this constraint
public DataTable getTable()
Returns: DataTable - the child table of this constraint
public DataTable getRelatedTable()
Returns: DataTable - The parent columns of this constraint.
public AcceptRejectRule getAcceptRejectRule()
Returns: com.groupdocs.assembly.system.data.AcceptRejectRule - AcceptRejectRule but it is not implemented yet.
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