Package net.ontopia.persistence.proxy

Class QueryDescriptor

java.lang.Object

net.ontopia.persistence.proxy.QueryDescriptor

public class QueryDescriptor
extends Object

INTERNAL: Class used for loading and managing SQL query declarations. It is used by the rdbms proxy implementation, but should implement a query factory interface in the future.

Field Summary

Fields

Modifier and Type	Field	Description
protected int	fetchSize
protected boolean	lookup_identities
protected String	name
protected Class[]	params
protected net.ontopia.persistence.proxy.QueryDescriptor.SelectField[]	selects
protected Map<String,String>	statements
protected String	type

Constructor Summary

Constructors

Constructor	Description
QueryDescriptor(String name, String type, boolean lookup_identities)

Method Summary

Modifier and Type	Method	Description
void	addStatement(String[] platforms, String statement)	INTERNAL: Registers the query statement for the specified platforms.
protected DetachedQueryIF	createDetachedQuery(SQLStatementIF stm, String type, boolean lookup_identities)
QueryIF	createQuery(RDBMSAccess access, ObjectAccessIF oaccess, AccessRegistrarIF registrar, String[] platforms)	INTERNAL: Creates a QueryIF instance that uses the specified storage access, object access, access registrar and platform settings for this query descriptor.
DetachedQueryIF	createSharedQuery(StorageIF storage, AccessRegistrarIF registrar, String[] platforms)	INTERNAL: Creates a QueryIF instance that uses the specified storage access and platform settings.
protected SQLStatement	createSQLStatement(StorageIF storage, String[] platforms)
int	getFetchSize()	INTERNAL: Gets the default fetch size.
protected FieldHandlerIF	getFieldHandler(ObjectRelationalMappingIF mapping, Class klass)
String	getName()	INTERNAL: Returns the name of the query.
protected FieldHandlerIF[]	getParameterHandlers(ObjectRelationalMappingIF mapping, Class[] params)
protected FieldHandlerIF	getSelectFieldHandler(ObjectRelationalMappingIF mapping, net.ontopia.persistence.proxy.QueryDescriptor.SelectField select)
protected FieldHandlerIF[]	getSelectFieldHandlers(ObjectRelationalMappingIF mapping, net.ontopia.persistence.proxy.QueryDescriptor.SelectField[] selects)
String	getStatement(String[] platforms)	INTERNAL: Gets the class type of the query parameters.
String	getType()	INTERNAL: Gets the query result type name.
void	setFetchSize(int fetchSize)	INTERNAL: Sets the default fetch size.
void	setParameters(List<Class<?>> params)	INTERNAL: Sets the class type of the query parameters.
void	setSelects(List<net.ontopia.persistence.proxy.QueryDescriptor.SelectField> selects)	INTERNAL: Sets the selected fields.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

name

protected String name

type

protected String type

fetchSize

protected int fetchSize

selects

protected net.ontopia.persistence.proxy.QueryDescriptor.SelectField[] selects

params

protected Class[] params

statements

protected Map<String,String> statements

lookup_identities

protected boolean lookup_identities

Constructor Detail

QueryDescriptor

public QueryDescriptor(String name,
                       String type,
                       boolean lookup_identities)

Method Detail

getName

public String getName()

INTERNAL: Returns the name of the query. This field is used together with named query execution.

getType

public String getType()

INTERNAL: Gets the query result type name.

getFetchSize

public int getFetchSize()

INTERNAL: Gets the default fetch size.

setFetchSize

public void setFetchSize(int fetchSize)

INTERNAL: Sets the default fetch size.

setSelects

public void setSelects(List<net.ontopia.persistence.proxy.QueryDescriptor.SelectField> selects)

INTERNAL: Sets the selected fields.

setParameters

public void setParameters(List<Class<?>> params)

INTERNAL: Sets the class type of the query parameters.

getStatement

public String getStatement(String[] platforms)

INTERNAL: Gets the class type of the query parameters.

addStatement

public void addStatement(String[] platforms,
                         String statement)

INTERNAL: Registers the query statement for the specified platforms.

createSharedQuery

public DetachedQueryIF createSharedQuery(StorageIF storage,
                                         AccessRegistrarIF registrar,
                                         String[] platforms)

INTERNAL: Creates a QueryIF instance that uses the specified storage access and platform settings.

createQuery

public QueryIF createQuery(RDBMSAccess access,
                           ObjectAccessIF oaccess,
                           AccessRegistrarIF registrar,
                           String[] platforms)

INTERNAL: Creates a QueryIF instance that uses the specified storage access, object access, access registrar and platform settings for this query descriptor.

createSQLStatement

protected SQLStatement createSQLStatement(StorageIF storage,
                                          String[] platforms)

createDetachedQuery

protected DetachedQueryIF createDetachedQuery(SQLStatementIF stm,
                                              String type,
                                              boolean lookup_identities)

getSelectFieldHandlers

protected FieldHandlerIF[] getSelectFieldHandlers(ObjectRelationalMappingIF mapping,
                                                  net.ontopia.persistence.proxy.QueryDescriptor.SelectField[] selects)

getSelectFieldHandler

protected FieldHandlerIF getSelectFieldHandler(ObjectRelationalMappingIF mapping,
                                               net.ontopia.persistence.proxy.QueryDescriptor.SelectField select)

getParameterHandlers

protected FieldHandlerIF[] getParameterHandlers(ObjectRelationalMappingIF mapping,
                                                Class[] params)

getFieldHandler

protected FieldHandlerIF getFieldHandler(ObjectRelationalMappingIF mapping,
                                         Class klass)