Package org.pgcodekeeper.core.schema.ch

Class ChConstraint

java.lang.Object

org.pgcodekeeper.core.schema.PgStatement

org.pgcodekeeper.core.schema.AbstractConstraint

org.pgcodekeeper.core.schema.ch.ChConstraint

All Implemented Interfaces:

IHashable, IConstraint, ISearchPath, IStatement

public final class ChConstraint
extends AbstractConstraint

Represents a ClickHouse table constraint (CHECK or ASSUME).

Field Summary

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

GO

Constructor Summary

Constructors

Constructor	Description
ChConstraint(String name, boolean isAssume)	Creates a new ClickHouse constraint.

Method Summary

Modifier and Type	Method	Description
ObjectState	appendAlterSQL(PgStatement newCondition, SQLScript script)	Fill script with object changes and return change type
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()
String	getDefinition()	Gets the SQL definition of this constraint.
void	getDropSQL(SQLScript script, boolean optionExists)	Generates DROP SQL for this statement.
void	setExpr(String expr)

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

containsColumn, getColumns, getContainingSchema, getLocation, getStatementType, getTableName, isNotValid, isSubElement, setNotValid, shallowCopy

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

addAllDeps, addDep, addPrivilege, appendAlterComments, appendComments, 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.IConstraint

isPrimaryKey

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

ChConstraint

public ChConstraint(String name,
 boolean isAssume)

Creates a new ClickHouse constraint.

Parameters:

name - the name of the constraint

isAssume - true if this is an ASSUME constraint, false for CHECK constraint

Method Details

setExpr

public void setExpr(String expr)

getDefinition

public String getDefinition()

Description copied from interface: IConstraint

Gets the SQL definition of this constraint.

Returns:

the constraint definition

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 AbstractConstraint

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 AbstractConstraint