org.fastnate.generator.statements

Class SequenceValueExpression

java.lang.Object

org.fastnate.generator.statements.SequenceValueExpression

All Implemented Interfaces:

ColumnExpression

Direct Known Subclasses:

CurrentSequenceValueExpression, NextSequenceValueExpression

public abstract class SequenceValueExpression
extends Object
implements ColumnExpression

Base class for ColumnExpressions which reference an ID by using the value of a sequence.

Author:

Tobias Liefke

Constructor Summary

Constructors

Constructor and Description
SequenceValueExpression(GeneratorDialect dialect, String sequenceName, int incrementSize, long difference)

Method Summary

Modifier and Type	Method and Description
GeneratorDialect	getDialect() The dialect of the current database.
long	getDifference() The difference of the referenced ID to the sequence value.
int	getIncrementSize() The expected incrementSize, as given in the schema - used by some dialects to ensure that exactly that inrement is used.
String	getSequenceName() The name of the sequence.
protected String	toSql(String sql) Builds the SQL expression by using the given SQL and the current difference.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.fastnate.generator.statements.ColumnExpression

appendSql, toSql

Constructor Detail

SequenceValueExpression

@ConstructorProperties(value={"dialect","sequenceName","incrementSize","difference"})
 @Generated(value="lombok")
public SequenceValueExpression(GeneratorDialect dialect,
                                                                                                                                                   String sequenceName,
                                                                                                                                                   int incrementSize,
                                                                                                                                                   long difference)

Method Detail

toSql

protected String toSql(String sql)

Builds the SQL expression by using the given SQL and the current difference.

Parameters:

sql - the SQL expression that references the sequence

Returns:

the SQL expression that references the sequence and respects the difference

getDialect

@Generated(value="lombok")
public GeneratorDialect getDialect()

The dialect of the current database.

getSequenceName

@Generated(value="lombok")
public String getSequenceName()

The name of the sequence.

getIncrementSize

@Generated(value="lombok")
public int getIncrementSize()

The expected incrementSize, as given in the schema - used by some dialects to ensure that exactly that inrement is used.

getDifference

@Generated(value="lombok")
public long getDifference()

The difference of the referenced ID to the sequence value.