Package io.github.mfvanek.pg.model.constraint

Class Constraint

java.lang.Object

io.github.mfvanek.pg.model.constraint.Constraint

All Implemented Interfaces:

ConstraintNameAware, DbObject, TableNameAware

Direct Known Subclasses:

ForeignKey

@Immutable
public class Constraint
extends Object
implements DbObject, TableNameAware, ConstraintNameAware

A representation of constraint in a database.

Since:

0.11.0

See Also:

• TableNameAware

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	Constraint(String tableName, String constraintName, ConstraintType constraintType)	Constructs a Constraint object with given ConstraintType.

Method Summary

Modifier and Type	Method	Description
final boolean	equals(Object other)
String	getConstraintName()	Retrieves the name of the database constraint associated with this entity.
ConstraintType	getConstraintType()	Retrieves type of constraint.
final String	getName()	Retrieves database object name.
final PgObjectType	getObjectType()	Retrieves database object type.
String	getTableName()	Retrieves table name.
String	getValidateSql()	Builds and returns sql query to validate current constraint.
final int	hashCode()
static Constraint	ofType(String tableName, String constraintName, ConstraintType constraintType)	Constructs a Constraint object with given ConstraintType.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

Constraint

protected Constraint(@Nonnull
 String tableName,
 @Nonnull
 String constraintName,
 @Nonnull
 ConstraintType constraintType)

Constructs a Constraint object with given ConstraintType.

Parameters:

tableName - table name; should be non-blank.

constraintName - constraint name; should be non-blank.

constraintType - constraint type; should be non-null.

Method Details

getName

@Nonnull
public final String getName()

Retrieves database object name.

Specified by:

getName in interface DbObject

Returns:

database object name

getObjectType

@Nonnull
public final PgObjectType getObjectType()

Retrieves database object type.

Specified by:

getObjectType in interface DbObject

Returns:

database object type

getTableName

@Nonnull
public String getTableName()

Retrieves table name.

Specified by:

getTableName in interface TableNameAware

Returns:

table name

getConstraintName

@Nonnull
public String getConstraintName()

Retrieves the name of the database constraint associated with this entity.

Specified by:

getConstraintName in interface ConstraintNameAware

Returns:

the name of the constraint as a non-null String.

getConstraintType

@Nonnull
public ConstraintType getConstraintType()

Retrieves type of constraint.

Returns:

type of constraint

See Also:

• ConstraintType

equals

public final boolean equals(Object other)

Overrides:

equals in class Object

hashCode

public final int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object

getValidateSql

@Nonnull
public String getValidateSql()

Builds and returns sql query to validate current constraint.

Returns:

sql query to validate current constraint

See Also:

• VALIDATE CONSTRAINT

ofType

@Nonnull
public static Constraint ofType(@Nonnull
 String tableName,
 @Nonnull
 String constraintName,
 @Nonnull
 ConstraintType constraintType)

Constructs a Constraint object with given ConstraintType.

Parameters:

tableName - table name; should be non-blank.

constraintName - constraint name; should be non-blank.

constraintType - constraint type; should be non-null.

Returns:

Constraint