com.ninja_squad.dbsetup.operation
Class Truncate

java.lang.Object
  com.ninja_squad.dbsetup.operation.Truncate

All Implemented Interfaces:

Operation

@Immutable
public final class Truncate
extends java.lang.Object
implements Operation

An operation which deletes everything from a given database table using a TRUNCATE statement., which is sometimes faster that using a DELETE statement.

execute

public void execute(java.sql.Connection connection,
                    BinderConfiguration configuration)
             throws java.sql.SQLException

Description copied from interface: Operation

Executes the operation

Specified by:

execute in interface Operation

Parameters:

connection - the connection used to execute the operation

configuration - the binder configuration, used to get appropriate binders based on the metadata of the prepared statements

Throws:

java.sql.SQLException - if the execution throws a SQLException

table

public static Truncate table(@Nonnull
                             java.lang.String table)

Returns an operation which truncates the given table.

Parameters:

table - the table to delete everything from.

tables

public static Operation tables(java.lang.String... tables)

Returns a composite operation which truncates the given tables, in the same order as the tables. If A has a foreign key to B, which has a foreign key to C, tables should be listed in the following order: A, B, C. Otherwise, referential constraint will break. If there is a cycle in the dependencies, you might want to use a sequence of SqlOperation to disable the foreign key constraints, then truncate the tables, then use another sequence of SqlOperation to re-enable the foreign key constraints.

Parameters:

tables - the tables to truncate.

tables

public static Operation tables(java.util.List<java.lang.String> tables)

Returns a composite operation which truncates the given tables, in the same order as the tables. If A has a foreign key to B, which has a foreign key to C, tables should be listed in the following order: A, B, C. Otherwise, referential constraint will break. If there is a cycle in the dependencies, you might want to use a sequence of SqlOperation to disable the foreign key constraints, then truncate the tables, then use another sequence of SqlOperation to re-enable the foreign key constraints.

Parameters:

tables - the tables to truncate.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object