Module litebridge.db.spi

Package org.litebridgedb.db.spi.update

Record Class Update

java.lang.Object

java.lang.Record

org.litebridgedb.db.spi.update.Update

Record Components:

table - TableMetaData provides metadata about the table being updated, including its structure.

columnValues - The ColumnValue pairs a column with its new value, ensuring clear definition of updates.

where - The Condition objects define filter criteria that determine which rows of the table will be updated.

All Implemented Interfaces:

UpdateStatement

public record Update(Table table, List<ColumnValue> columnValues, List<Condition> where)
extends Record
implements UpdateStatement

A SQL UPDATE statement targeting a specific table, with associated column values and conditions.

This class is a record that combines: - A target TableMetaData representing the table to update. - A list of ColumnValue objects specifying the columns and their new values. - A list of Condition objects that define the WHERE clause conditions for the update operation.

This class is immutable and serves as part of the structure for creating and representing SQL UPDATE operations in a database context.

Constructor Summary

Constructors

Constructor	Description
Update(Table table, List<ColumnValue> columnValues, List<Condition> where)	Creates an instance of a Update record class.

Method Summary

Modifier and Type	Method	Description
List<ColumnValue>	columnValues()	Returns the value of the columnValues record component.
final boolean	equals(Object o)	Indicates whether some other object is "equal to" this one.
final int	hashCode()	Returns a hash code value for this object.
Table	table()	Returns the value of the table record component.
final String	toString()	Returns a string representation of this record class.
List<Condition>	where()	Returns the value of the where record component.

Methods inherited from class java.lang.Object

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

Constructor Details

Update

public Update(Table table,
 List<ColumnValue> columnValues,
 List<Condition> where)

Creates an instance of a Update record class.

Parameters:

table - the value for the table record component

columnValues - the value for the columnValues record component

where - the value for the where record component

Method Details

toString

public final String toString()

Returns a string representation of this record class. The representation contains the name of the class, followed by the name and value of each of the record components.

Specified by:

toString in class Record

Returns:

a string representation of this object

hashCode

public final int hashCode()

Returns a hash code value for this object. The value is derived from the hash code of each of the record components.

Specified by:

hashCode in class Record

Returns:

a hash code value for this object

equals

public final boolean equals(Object o)

Indicates whether some other object is "equal to" this one. The objects are equal if the other object is of the same class and if all the record components are equal. All components in this record class are compared with Objects::equals(Object,Object).

Specified by:

equals in class Record

Parameters:

o - the object with which to compare

Returns:

true if this object is the same as the o argument; false otherwise.

table

public Table table()

Returns the value of the table record component.

Specified by:

table in interface UpdateStatement

Returns:

the value of the table record component

columnValues

public List<ColumnValue> columnValues()

Returns the value of the columnValues record component.

Returns:

the value of the columnValues record component

where

public List<Condition> where()

Returns the value of the where record component.

Returns:

the value of the where record component