Package org.datanucleus.store.rdbms.table

Class ProbeTable

java.lang.Object

org.datanucleus.store.rdbms.table.AbstractTable

org.datanucleus.store.rdbms.table.TableImpl

org.datanucleus.store.rdbms.table.ProbeTable

All Implemented Interfaces:

Table, org.datanucleus.store.schema.table.Table

public class ProbeTable
extends TableImpl

Utility class used for detecting database schema existence and provides means of determining the schema name.

Field Summary

Fields inherited from class org.datanucleus.store.rdbms.table.AbstractTable

columns, columnsByIdentifier, dba, existsInDatastore, identifier, state, storeMgr, TABLE_STATE_INITIALIZED, TABLE_STATE_INITIALIZED_MODIFIED, TABLE_STATE_NEW, TABLE_STATE_PK_INITIALIZED, TABLE_STATE_VALIDATED

Constructor Summary

Constructors

Constructor	Description
ProbeTable(RDBMSStoreManager storeMgr)	Constructor

Method Summary

Modifier and Type	Method	Description
protected boolean	allowDDLOutput()	Override to always really create ProbeTables in the DB.
String[]	findSchemaDetails(Connection conn)	Accessor for the Schema details.
JavaTypeMapping	getIdMapping()	Accessor for a mapping for the ID (persistable) for this table.
JavaTypeMapping	getMemberMapping(org.datanucleus.metadata.AbstractMemberMetaData mmd)	Accessor the for the mapping for a field/property stored in this table.
void	initialize(org.datanucleus.ClassLoaderResolver clr)	Method to initialise the table.

Methods inherited from class org.datanucleus.store.rdbms.table.TableImpl

createConstraints, dropConstraints, getExpectedCandidateKeys, getExpectedForeignKeys, getExpectedIndices, getPrimaryKey, getSQLAddCandidateKeyStatements, getSQLAddFKStatements, getSQLCreateIndexStatements, getSQLCreateStatements, getSQLDropStatements, initializeColumnInfoForPrimaryKeyColumns, initializeColumnInfoFromDatastore, logMapping, validate, validateColumns, validateConstraints, validatePrimaryKey

Methods inherited from class org.datanucleus.store.rdbms.table.AbstractTable

addColumn, addColumnInternal, assertIsInitialized, assertIsInitializedModified, assertIsPKInitialized, assertIsPKUninitialized, assertIsUninitialized, assertIsValidated, create, drop, equals, executeDdlStatement, executeDdlStatementList, exists, getCatalogName, getClassMetaData, getColumn, getColumnForName, getColumnForPosition, getColumns, getDatastoreIdentifierFullyQualified, getDiscriminatorMetaData, getIdentifier, getMemberColumnMappingForEmbeddedMember, getMemberColumnMappingForMember, getMemberColumnMappings, getName, getNumberOfColumns, getSchemaName, getStoreManager, getSurrogateColumn, getSurrogateMapping, getVersionMetaData, hasColumn, hasColumnName, hashCode, isInitialized, isInitializedModified, isPKInitialized, isValidated, postInitialize, preInitialize, tableExistsInDatastore, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

ProbeTable

public ProbeTable(RDBMSStoreManager storeMgr)

Constructor

Parameters:

storeMgr - The RDBMSManager for this datastore

Method Detail

initialize

public void initialize(org.datanucleus.ClassLoaderResolver clr)

Method to initialise the table.

Parameters:

clr - The ClassLoaderResolver

getIdMapping

public JavaTypeMapping getIdMapping()

Accessor for a mapping for the ID (persistable) for this table.

Returns:

The (persistable) ID mapping.

findSchemaDetails

public String[] findSchemaDetails(Connection conn)
                           throws SQLException

Accessor for the Schema details. This will return a String array with 2 elements. The first is the Catalog name, and the second the Schema name.

Parameters:

conn - Connection for this datastore.

Returns:

The Schema details

Throws:

SQLException - Thrown when an error occurs in the process.

allowDDLOutput

protected boolean allowDDLOutput()

Override to always really create ProbeTables in the DB. Needed to determine schema name.

Overrides:

allowDDLOutput in class AbstractTable

Returns:

Whether it allows DDL outputting

getMemberMapping

public JavaTypeMapping getMemberMapping(org.datanucleus.metadata.AbstractMemberMetaData mmd)

Accessor the for the mapping for a field/property stored in this table.

Parameters:

mmd - MetaData for the field whose mapping we want

Returns:

The mapping