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

Class PgCast

java.lang.Object

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

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

org.pgcodekeeper.core.database.pg.schema.PgCast

All Implemented Interfaces:

ICast, IStatement, IHashable

public class PgCast
extends PgAbstractStatement
implements ICast

PostgreSQL type cast implementation. Represents a cast that specifies how to perform conversions between two data types.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	PgCast.CastMethod	Enumeration of cast methods

Nested classes/interfaces inherited from interface org.pgcodekeeper.core.database.api.schema.ICast

ICast.CastContext

Field Summary

Fields inherited from interface org.pgcodekeeper.core.database.api.schema.ICast

CAST_NAME

Constructor Summary

Constructors

Constructor	Description
PgCast(String source, String target)	Creates a new PostgreSQL cast.

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.
ICast.CastContext	getContext()	Gets the context in which this cast can be invoked.
void	getCreationSQL(SQLScript script)	Generates the SQL statements needed to create this database object.
String	getQualifiedName()	Gets the fully qualified name of this statement.
String	getQuotedName()
String	getSource()	Gets the source type of the cast.
DbObjType	getStatementType()	Gets the type of this database object.
String	getTarget()	Gets the target type of the cast.
void	setContext(ICast.CastContext context)
void	setFunction(String function)
void	setMethod(PgCast.CastMethod method)

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, 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.ICast

toObjectReference

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

addDependency, appendOwnerSQL, canDrop, canDropBeforeCreate, clearPrivileges, deepCopy, formatSql, getAuthor, getBareName, getChildren, getComment, getDatabase, getDependencies, getDescendants, getDropSQL, getLibName, getLocation, getName, getOwner, getParent, getPrivileges, getQuoter, getRenameCommand, getSeparator, getSQL, getTwin, getTypeName, hasChildren, isLib, isOwned, quote, setComment, setLibName, setLocation, setOwner, shallowCopy

Constructor Details

PgCast

public PgCast(String source,
 String target)

Creates a new PostgreSQL cast.

Parameters:

source - source data type

target - target data type

Method Details

getStatementType

public DbObjType getStatementType()

Description copied from interface: IStatement

Gets the type of this database object.

Specified by:

getStatementType in interface IStatement

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.

Specified by:

getCreationSQL in interface IStatement

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

Specified by:

appendAlterSQL in interface IStatement

Parameters:

newCondition - new object state

script - script to collect changes

Returns:

object change type

getContext

public ICast.CastContext getContext()

Description copied from interface: ICast

Gets the context in which this cast can be invoked.

Specified by:

getContext in interface ICast

Returns:

the cast context

setContext

public void setContext(ICast.CastContext context)

setMethod

public void setMethod(PgCast.CastMethod method)

setFunction

public void setFunction(String function)

getSource

public String getSource()

Description copied from interface: ICast

Gets the source type of the cast.

Specified by:

getSource in interface ICast

Returns:

the source type name

getTarget

public String getTarget()

Description copied from interface: ICast

Gets the target type of the cast.

Specified by:

getTarget in interface ICast

Returns:

the target type name

getQualifiedName

public String getQualifiedName()

Description copied from interface: IStatement

Gets the fully qualified name of this statement.

Specified by:

getQualifiedName in interface IStatement

Overrides:

getQualifiedName in class AbstractStatement

Returns:

fully qualified (up to schema) dot-delimited object name. Identifiers are quoted.

getQuotedName

public String getQuotedName()

Specified by:

getQuotedName in interface IStatement

Returns:

the quoted name

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.

Specified by:

computeHash in interface IHashable

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