Package liquibase.sqlgenerator.core

Class CreateIndexGeneratorPostgres

java.lang.Object

liquibase.sqlgenerator.core.AbstractSqlGenerator<CreateIndexStatement>

liquibase.sqlgenerator.core.CreateIndexGenerator

liquibase.sqlgenerator.core.CreateIndexGeneratorPostgres

All Implemented Interfaces:

PrioritizedService, SqlGenerator<CreateIndexStatement>

public class CreateIndexGeneratorPostgres
extends CreateIndexGenerator

Field Summary

Fields inherited from interface liquibase.servicelocator.PrioritizedService

COMPARATOR

Fields inherited from interface liquibase.sqlgenerator.SqlGenerator

EMPTY_SQL, PRIORITY_DATABASE, PRIORITY_DEFAULT

Constructor Summary

Constructors

Constructor	Description
CreateIndexGeneratorPostgres()

Method Summary

Modifier and Type	Method	Description
Sql[]	generateSql(CreateIndexStatement statement, Database database, SqlGeneratorChain sqlGeneratorChain)	Generate a CREATE INDEX SQL statement.
int	getPriority()	Of all the SqlGenerators that "support" a given SqlStatement/Database, SqlGeneratorFactory will return the one with the highest priority.
boolean	supports(CreateIndexStatement statement, Database database)	Does this generator support the given statement/database combination? Do not validate the statement with this method, only return if it can support it.

Methods inherited from class liquibase.sqlgenerator.core.CreateIndexGenerator

getAffectedIndex, validate, warn

Methods inherited from class liquibase.sqlgenerator.core.AbstractSqlGenerator

generateRollbackStatementsIsVolatile, generateStatementsIsVolatile, looksLikeFunctionCall

Methods inherited from class java.lang.Object

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

Constructor Details

CreateIndexGeneratorPostgres

public CreateIndexGeneratorPostgres()

Method Details

getPriority

public int getPriority()

Description copied from interface: SqlGenerator

Of all the SqlGenerators that "support" a given SqlStatement/Database, SqlGeneratorFactory will return the one with the highest priority.

Specified by:

getPriority in interface PrioritizedService

Specified by:

getPriority in interface SqlGenerator<CreateIndexStatement>

Overrides:

getPriority in class AbstractSqlGenerator<CreateIndexStatement>

supports

public boolean supports(CreateIndexStatement statement,
 Database database)

Description copied from interface: SqlGenerator

Does this generator support the given statement/database combination? Do not validate the statement with this method, only return if it can support it.

Specified by:

supports in interface SqlGenerator<CreateIndexStatement>

Overrides:

supports in class AbstractSqlGenerator<CreateIndexStatement>

generateSql

public Sql[] generateSql(CreateIndexStatement statement,
 Database database,
 SqlGeneratorChain sqlGeneratorChain)

Description copied from class: CreateIndexGenerator

Generate a CREATE INDEX SQL statement. Here, we are walking on thin ice, because the SQL Foundation standard (ISO/IEC 9075-2) does not concern itself with indexes at all and leaves them as an implementation-specific detail at the discretion of each RDBMS vendor. However, there is some common ground to most RDBMS, and we try to make an educated guess on how a CREATE INDEX statement might look like if we have no specific handler for the DBMS.

Specified by:

generateSql in interface SqlGenerator<CreateIndexStatement>

Overrides:

generateSql in class CreateIndexGenerator

Parameters:

statement - A CreateIndexStatement with the desired properties of the SQL to be generated

database - The DBMS for whose SQL dialect the statement is to be made

sqlGeneratorChain - The other SQL generators in the same chain (but this method is not interested in them)

Returns:

An array of Sql objects containing the generated SQL statement(s).