Package org.pgcodekeeper.core.database.pg.schema

Class PgExtension

java.lang.Object

org.pgcodekeeper.core.database.base.schema.AbstractStatement

org.pgcodekeeper.core.database.pg.schema.PgAbstractStatement

org.pgcodekeeper.core.database.pg.schema.PgExtension

All Implemented Interfaces:

IStatement, IHashable

public class PgExtension
extends PgAbstractStatement

PostgreSQL extension implementation. Extensions are add-on modules that provide additional functionality to PostgreSQL databases, such as data types, functions, and operators.

Author:

Alexander Levsha

Constructor Summary

Constructors

Constructor	Description
PgExtension(String name)	Creates a new PostgreSQL extension.

Method Summary

Modifier and Type	Method	Description
ObjectState	appendAlterSQL(IStatement newCondition, SQLScript script)	Fill script with object changes and return change type
boolean	compare(IStatement obj)	This method does not account for nested child PgStatements.
void	computeHash(Hasher hasher)	Computes the hash of the implementing object using the provided hasher.
void	getCreationSQL(SQLScript script)	Generates the SQL statements needed to create this database object.
String	getSchema()	Gets the schema where this extension is installed.
DbObjType	getStatementType()	Gets the type of this database object.
void	setRelocatable(boolean relocatable)
void	setSchema(String schema)

Methods inherited from class org.pgcodekeeper.core.database.pg.schema.PgAbstractStatement

addPrivilege, appendDefaultPrivileges, appendOwnerSQL, formatSql, getQuoter, getRenameCommand, isOwned

Methods inherited from class org.pgcodekeeper.core.database.base.schema.AbstractStatement

addDependency, appendAlterComments, appendComments, appendPrivileges, canDrop, canDropBeforeCreate, checkComments, clearPrivileges, compareChildren, deepCopy, equals, fillChildrenList, fillDescendantsList, getAuthor, getBareName, getChildren, getComment, getDependencies, getDescendants, getDropSQL, getDropSQL, getLibName, getLocation, getName, getObjectState, getObjectState, getOwner, getParent, getPrivileges, getQualifiedName, getSeparator, getSQL, getTwin, hasChildren, hashCode, isLib, setAuthor, setComment, setLibName, setLocation, setOwner, setParent, shallowCopy, toString

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.pgcodekeeper.core.database.api.schema.IStatement

getDatabase, getQuotedName, getTypeName, quote, toObjectReference

Constructor Details

PgExtension

public PgExtension(String name)

Creates a new PostgreSQL extension.

Parameters:

name - extension name

Method Details

getStatementType

public DbObjType getStatementType()

Description copied from interface: IStatement

Gets the type of this database object.

Returns:

the database object type

getCreationSQL

public void getCreationSQL(SQLScript script)

Description copied from interface: IStatement

Generates the SQL statements needed to create this database object. This is an abstract method that must be implemented by subclasses to provide the specific CREATE SQL for each object type.

Parameters:

script - the SQL script to append creation statements to

appendAlterSQL

public ObjectState appendAlterSQL(IStatement newCondition,
 SQLScript script)

Description copied from interface: IStatement

Fill script with object changes and return change type

Parameters:

newCondition - new object state

script - script to collect changes

Returns:

object change type

getSchema

public String getSchema()

Gets the schema where this extension is installed.

Returns:

schema name or null if using default

setSchema

public void setSchema(String schema)

setRelocatable

public void setRelocatable(boolean relocatable)

computeHash

public void computeHash(Hasher hasher)

Description copied from interface: IHashable

Computes the hash of the implementing object using the provided hasher. The implementation should call appropriate put methods on the hasher for all fields that should contribute to the hash value.

Parameters:

hasher - the hasher instance to use for hash computation

compare

public boolean compare(IStatement obj)

Description copied from class: AbstractStatement

This method does not account for nested child PgStatements. Shallow version of AbstractStatement.equals(Object)

Specified by:

compare in interface IStatement

Overrides:

compare in class AbstractStatement