Package org.pgcodekeeper.core.schema.ch

Class ChColumn

java.lang.Object

org.pgcodekeeper.core.schema.PgStatement

org.pgcodekeeper.core.schema.AbstractColumn

org.pgcodekeeper.core.schema.ch.ChColumn

All Implemented Interfaces:

IHashable, ISearchPath, IStatement

public final class ChColumn
extends AbstractColumn

Represents a ClickHouse database column with ClickHouse-specific properties. Extends the base AbstractColumn with support for ClickHouse-specific features like TTL, codecs, and different default types.

Field Summary

Fields inherited from class org.pgcodekeeper.core.schema.PgStatement

GO

Constructor Summary

Constructors

Constructor	Description
ChColumn(String name)	Creates a new ClickHouse column with the specified name.

Method Summary

Modifier and Type	Method	Description
void	addCodec(String codec)
ObjectState	appendAlterSQL(PgStatement newCondition, SQLScript script)	Fill script with object changes and return change type
void	appendComments(SQLScript script)	Appends comment SQL to the script if this statement has comments.
boolean	compare(PgStatement 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.
DatabaseType	getDbType()
void	getDropSQL(SQLScript script, boolean optionExists)	Generates DROP SQL for this statement.
String	getFullDefinition()	Returns the complete column definition including type, constraints, and other attributes.
void	setDefaultType(String defaultType)
void	setOption(String option)
void	setTtl(String ttl)

Methods inherited from class org.pgcodekeeper.core.schema.AbstractColumn

getCollation, getContainingSchema, getDefaultValue, getLocation, getNullValue, getStatementType, getType, isSubElement, setCollation, setDefaultValue, setNullValue, setType, shallowCopy

Methods inherited from class org.pgcodekeeper.core.schema.PgStatement

addAllDeps, addDep, addPrivilege, appendAlterComments, appendOwnerSQL, canDrop, canDropBeforeCreate, checkComments, clearPrivileges, compareChildren, deepCopy, equals, getAuthor, getBareName, getChildren, getComment, getDeps, getDescendants, getDropSQL, getLibName, getName, getObjectState, getObjectState, getOwner, getParent, getPrivileges, getQualifiedName, getSQL, getTwin, getTypeName, hasChildren, hashCode, isLib, isOwned, setAuthor, setComment, setLibName, setLocation, setOwner, setParent, toString

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.pgcodekeeper.core.schema.ISearchPath

getDatabase, getSchemaName

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

getBareName, getComment, getName, getParent, getQualifiedName

Constructor Details

ChColumn

public ChColumn(String name)

Creates a new ClickHouse column with the specified name.

Parameters:

name - the name of the column

Method Details

setDefaultType

public void setDefaultType(String defaultType)

setTtl

public void setTtl(String ttl)

addCodec

public void addCodec(String codec)

setOption

public void setOption(String option)

getFullDefinition

public String getFullDefinition()

Description copied from class: AbstractColumn

Returns the complete column definition including type, constraints, and other attributes.

Specified by:

getFullDefinition in class AbstractColumn

Returns:

the full column definition as SQL string

getCreationSQL

public void getCreationSQL(SQLScript script)

Description copied from class: PgStatement

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 class PgStatement

Parameters:

script - the SQL script to append creation statements to

appendAlterSQL

public ObjectState appendAlterSQL(PgStatement newCondition,
 SQLScript script)

Description copied from class: PgStatement

Fill script with object changes and return change type

Specified by:

appendAlterSQL in class PgStatement

Parameters:

newCondition - new object state

script - script to collect changes

Returns:

object change type

getDropSQL

public void getDropSQL(SQLScript script,
 boolean optionExists)

Description copied from class: PgStatement

Generates DROP SQL for this statement.

Overrides:

getDropSQL in class PgStatement

Parameters:

script - the SQL script to append the DROP statement to

optionExists - whether to include "IF EXISTS" in the DROP statement

getDbType

public DatabaseType getDbType()

Overrides:

getDbType in class PgStatement

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

Overrides:

computeHash in class AbstractColumn

Parameters:

hasher - the hasher instance to use for hash computation

compare

public boolean compare(PgStatement obj)

Description copied from class: PgStatement

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

Overrides:

compare in class AbstractColumn

appendComments

public void appendComments(SQLScript script)

Description copied from class: PgStatement

Appends comment SQL to the script if this statement has comments.

Overrides:

appendComments in class PgStatement

Parameters:

script - the SQL script to append comments to