Package org.pgcodekeeper.core.database.ms.schema

Class MsStatistics

java.lang.Object

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

org.pgcodekeeper.core.database.ms.schema.MsAbstractStatement

org.pgcodekeeper.core.database.ms.schema.MsStatistics

All Implemented Interfaces:

ISearchPath, IStatement, IStatistics, ISubElement, IHashable

public class MsStatistics
extends MsAbstractStatement
implements IStatistics, ISubElement

Represents Microsoft SQL table statistics. Statistics are used by the query optimizer to create efficient query execution plans.

Constructor Summary

Constructors

Constructor	Description
MsStatistics(String name)	Creates a new Microsoft SQL statistics object.

Method Summary

Modifier and Type	Method	Description
void	addCol(String col)	Adds a column to this statistics object.
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.
void	putOption(String key, String value)	Adds an option to this statistics object.
void	setFilter(String filter)
void	setParentHasData(boolean parentHasData)
void	setSamplePercent(String samplePercent)

Methods inherited from class org.pgcodekeeper.core.database.ms.schema.MsAbstractStatement

appendOwnerSQL, formatSql, getQuoter, getRenameCommand, getSeparator, isOwned

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

addDependency, addPrivilege, 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, 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.ISearchPath

getDatabase, getSchemaName

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

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

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

getStatementType

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

getContainingSchema, toObjectReference

Constructor Details

MsStatistics

public MsStatistics(String name)

Creates a new Microsoft SQL statistics object.

Parameters:

name - the statistics name

Method Details

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

setFilter

public void setFilter(String filter)

setSamplePercent

public void setSamplePercent(String samplePercent)

setParentHasData

public void setParentHasData(boolean parentHasData)

addCol

public void addCol(String col)

Adds a column to this statistics object.

Parameters:

col - the column name to add

putOption

public void putOption(String key,
 String value)

Adds an option to this statistics object.

Parameters:

key - the option name

value - the option value

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