org.apache.openjpa.jdbc.sql
Class InformixDictionary

java.lang.Object
  org.apache.openjpa.jdbc.sql.DBDictionary
      org.apache.openjpa.jdbc.sql.InformixDictionary

All Implemented Interfaces:

JoinSyntaxes, Configurable, ConnectionDecorator, LoggingConnectionDecorator.SQLWarningHandler

public class InformixDictionary
extends DBDictionary

Dictionary for Informix database. Notable features:

• Informix does not allow pessimistic locking on scrollable result sets.
• SET LOCK MODE TO WAIT N statements are issued to wait on locks. See lockWaitSeconds and lockModeEnabled.
• LOCK MODE ROW is used by default for table creation to allow the maximum concurrency.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.openjpa.jdbc.sql.DBDictionary

DBDictionary.SerializedData

Field Summary

boolean	lockModeEnabled If true, then we will issue a "SET LOCK MODE TO WAIT N" statement whenever we create a Connection, in order allow waiting on locks.
int	lockWaitSeconds If lockModeEnabled is true, then this parameter specifies the number of seconds we will wait to obtain a lock for inserts and pessimistic locking.
boolean	swapSchemaAndCatalog Informix JDBC metadata for all known drivers returns with the table catalog and the table schema name swapped.

Fields inherited from class org.apache.openjpa.jdbc.sql.DBDictionary

_loc, allowsAliasInBulkClause, arrayTypeName, autoAssignClause, autoAssignTypeName, bigintTypeName, binaryTypeName, bitLengthFunction, bitTypeName, blobTypeName, booleanTypeName, castFunction, catalogSeparator, CENTI, characterColumnSize, charTypeName, clobTypeName, closePoolSQL, concatenateDelimiter, concatenateFunction, conf, connected, CONS_NAME_AFTER, CONS_NAME_BEFORE, CONS_NAME_MID, constraintNameMode, createPrimaryKeys, crossJoinClause, currentDateFunction, currentTimeFunction, currentTimestampFunction, datePrecision, dateTypeName, DECI, decimalTypeName, distinctCountColumnSeparator, distinctTypeName, doubleTypeName, driverVendor, dropTableSQL, fixedSizeTypeNames, fixedSizeTypeNameSet, floatTypeName, forUpdateClause, getStringVal, ignoreSQLExceptionOnSetQueryTimeout, inClauseLimit, initializationSQL, innerJoinClause, integerTypeName, isJDBC3, javaObjectTypeName, joinSyntax, lastGeneratedKeyQuery, log, longVarbinaryTypeName, longVarcharTypeName, maxAutoAssignNameLength, maxColumnNameLength, maxConstraintNameLength, maxEmbeddedBlobSize, maxEmbeddedClobSize, maxIndexesPerTable, maxIndexNameLength, maxTableNameLength, MICRO, MILLI, NAME_ANY, NAME_SEQUENCE, NAME_TABLE, NANO, nextSequenceQuery, nullTypeName, numericTypeName, otherTypeName, outerJoinClause, platform, RANGE_POST_DISTINCT, RANGE_POST_LOCK, RANGE_POST_SELECT, RANGE_PRE_DISTINCT, rangePosition, realTypeName, refTypeName, requiresAliasForSubselect, requiresAutoCommitForMetaData, requiresCastForComparisons, requiresCastForMathFunctions, requiresConditionForCrossJoin, requiresSearchStringEscapeForLike, reservedWords, reservedWordSet, SCHEMA_CASE_LOWER, SCHEMA_CASE_PRESERVE, SCHEMA_CASE_UPPER, schemaCase, searchStringEscape, SEC, selectWords, selectWordSet, sequenceNameSQL, sequenceSchemaSQL, sequenceSQL, simulateLocking, smallintTypeName, storageLimitationsFatal, storeCharsAsNumbers, storeLargeNumbersAsStrings, stringLengthFunction, structTypeName, substringFunctionName, supportsAlterTableWithAddColumn, supportsAlterTableWithDropColumn, supportsAutoAssign, supportsCascadeDeleteAction, supportsCascadeUpdateAction, supportsCaseConversionForLob, supportsCorrelatedSubselect, supportsDefaultDeleteAction, supportsDefaultUpdateAction, supportsDeferredConstraints, supportsForeignKeys, supportsHaving, supportsLockingWithDistinctClause, supportsLockingWithInnerJoin, supportsLockingWithMultipleTables, supportsLockingWithOrderClause, supportsLockingWithOuterJoin, supportsLockingWithSelectRange, supportsModOperator, supportsMultipleNontransactionalResultSets, supportsNullDeleteAction, supportsNullTableForGetColumns, supportsNullTableForGetImportedKeys, supportsNullTableForGetIndexInfo, supportsNullTableForGetPrimaryKeys, supportsNullUpdateAction, supportsQueryTimeout, supportsRestrictDeleteAction, supportsRestrictUpdateAction, supportsSchemaForGetColumns, supportsSchemaForGetTables, supportsSelectEndIndex, supportsSelectForUpdate, supportsSelectStartIndex, supportsSubselect, supportsUniqueConstraints, supportsXMLColumn, systemSchemas, systemSchemaSet, systemTables, systemTableSet, tableForUpdateClause, tableTypes, timestampTypeName, timeTypeName, tinyintTypeName, toLowerCaseFunction, toUpperCaseFunction, trimBothFunction, trimLeadingFunction, trimSchemaName, trimTrailingFunction, useGetBestRowIdentifierForPrimaryKeys, useGetBytesForBlobs, useGetObjectForBlobs, useGetStringForClobs, useSchemaName, useSetBytesForBlobs, useSetStringForClobs, validationSQL, varbinaryTypeName, varcharTypeName, VENDOR_DATADIRECT, VENDOR_OTHER, xmlTypeName

Fields inherited from interface org.apache.openjpa.jdbc.sql.JoinSyntaxes

SYNTAX_DATABASE, SYNTAX_SQL92, SYNTAX_TRADITIONAL

Constructor Summary

InformixDictionary()

Method Summary

void	connectedConfiguration(Connection conn) This method is called when the dictionary first sees any connection.
Connection	decorate(Connection conn) Decorate the given connection if needed.
String[]	getAddForeignKeySQL(ForeignKey fk) Return a series of SQL statements to add the given foreign key to its table.
String[]	getAddPrimaryKeySQL(PrimaryKey pk) Return a series of SQL statements to add the given primary key to its table.
Column[]	getColumns(DatabaseMetaData meta, String catalog, String schemaName, String tableName, String columnName, Connection conn) Reflect on the schema to find columns matching the given table and column patterns.
String[]	getCreateTableSQL(Table table) Return a series of SQL statements to create the given table, complete with columns.
void	indexOf(SQLBuffer buf, FilterValue str, FilterValue find, FilterValue start) Invoke this database's indexOf function.
boolean	needsToCreateIndex(Index idx, Table table)
Column	newColumn(ResultSet colMeta) Create a new column from the information in the schema metadata.
Index	newIndex(ResultSet idxMeta) Create a new index from the information in the schema metadata.
PrimaryKey	newPrimaryKey(ResultSet pkMeta) Create a new primary key from the information in the schema metadata.
void	setBoolean(PreparedStatement stmnt, int idx, boolean val, Column col) Set the given value as a parameter to the statement.
boolean	supportsRandomAccessResultSet(Select sel, boolean forUpdate) Return false if the given select requires a forward-only result set.

Methods inherited from class org.apache.openjpa.jdbc.sql.DBDictionary

addCastAsType, appendCast, appendLength, appendNumericCast, appendSelectRange, appendSize, appendUpdates, appendXmlComparison, assertSupport, canOuterJoin, closeDataSource, comparison, convertSchemaCase, createIndexIfNecessary, endConfiguration, getAddColumnSQL, getArray, getAsciiStream, getBigDecimal, getBigInteger, getBinaryStream, getBlob, getBlobObject, getBoolean, getByte, getBytes, getCalendar, getCastFunction, getCastFunction, getCatalogNameForMetadata, getChar, getCharacterStream, getClob, getClobString, getColumnNameForMetadata, getCreateIndexSQL, getCreateSequenceSQL, getDate, getDate, getDeclareColumnSQL, getDeleteTableContentsSQL, getDouble, getDropColumnSQL, getDropForeignKeySQL, getDropIndexSQL, getDropPrimaryKeySQL, getDropSequenceSQL, getDropTableSQL, getFloat, getForeignKeyConstraintSQL, getForUpdateClause, getFrom, getFromSelect, getFullName, getFullName, getFullName, getGeneratedKey, getGeneratedKeySequenceName, getImportedKeys, getIndexInfo, getInt, getJDBCType, getLocale, getLong, getNumber, getObject, getPlaceholderValueString, getPreferredType, getPrimaryKeyConstraintSQL, getPrimaryKeys, getPrimaryKeysFromBestRowIdentifier, getPrimaryKeysFromGetPrimaryKeys, getRef, getSchemaCase, getSchemaNameForMetadata, getSelectOperation, getSelects, getSequences, getSequencesSQL, getShort, getString, getTableNameForMetadata, getTables, getTime, getTimestamp, getTrimSchemaName, getTypeName, getTypeName, getUniqueConstraintSQL, getValidColumnName, getValidForeignKeyName, getValidIndexName, getValidPrimaryKeyName, getValidSequenceName, getValidTableName, getValidUniqueName, getVersionColumn, getWhere, handleWarning, isSelect, isSystemIndex, isSystemSequence, isSystemTable, makeNameValid, mathFunction, newForeignKey, newSequence, newStoreException, newTable, putBytes, putChars, putString, refSchemaComponents, serialize, setArray, setAsciiStream, setBigDecimal, setBigInteger, setBinaryStream, setBlob, setBlobObject, setByte, setBytes, setCalendar, setChar, setCharacterStream, setClob, setClobString, setConfiguration, setDate, setDate, setDouble, setFloat, setInt, setJoinSyntax, setLocale, setLong, setNull, setNumber, setObject, setRef, setShort, setString, setTime, setTimestamp, setTrimSchemaName, setTyped, setUnknown, shorten, startConfiguration, storageWarning, substring, supportsDeferredForeignKeyConstraints, supportsDeferredUniqueConstraints, supportsDeleteAction, supportsLocking, supportsUpdateAction, toBulkOperation, toDelete, toNativeJoin, toOperation, toOperation, toSelect, toSelect, toSelect, toSelect, toSelect, toSelectCount, toSQL92Join, toTraditionalJoin, toUpdate

Methods inherited from class java.lang.Object

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

Field Detail

lockModeEnabled

public boolean lockModeEnabled

If true, then we will issue a "SET LOCK MODE TO WAIT N" statement whenever we create a Connection, in order allow waiting on locks.

lockWaitSeconds

public int lockWaitSeconds

If lockModeEnabled is true, then this parameter specifies the number of seconds we will wait to obtain a lock for inserts and pessimistic locking.

swapSchemaAndCatalog

public boolean swapSchemaAndCatalog

Informix JDBC metadata for all known drivers returns with the table catalog and the table schema name swapped. A true value for this property indicates that they should be reversed.

Constructor Detail

InformixDictionary

public InformixDictionary()

Method Detail

connectedConfiguration

public void connectedConfiguration(Connection conn)
                            throws SQLException

Description copied from class: DBDictionary

This method is called when the dictionary first sees any connection. It is used to initialize dictionary metadata if needed. If you override this method, be sure to call super.connectedConfiguration.

Overrides:

connectedConfiguration in class DBDictionary

Throws:

SQLException

getColumns

public Column[] getColumns(DatabaseMetaData meta,
                           String catalog,
                           String schemaName,
                           String tableName,
                           String columnName,
                           Connection conn)
                    throws SQLException

Description copied from class: DBDictionary

Reflect on the schema to find columns matching the given table and column patterns.

Overrides:

getColumns in class DBDictionary

Throws:

SQLException

newColumn

public Column newColumn(ResultSet colMeta)
                 throws SQLException

Description copied from class: DBDictionary

Create a new column from the information in the schema metadata.

Overrides:

newColumn in class DBDictionary

Throws:

SQLException

newPrimaryKey

public PrimaryKey newPrimaryKey(ResultSet pkMeta)
                         throws SQLException

Description copied from class: DBDictionary

Create a new primary key from the information in the schema metadata.

Overrides:

newPrimaryKey in class DBDictionary

Throws:

SQLException

newIndex

public Index newIndex(ResultSet idxMeta)
               throws SQLException

Description copied from class: DBDictionary

Create a new index from the information in the schema metadata.

Overrides:

newIndex in class DBDictionary

Throws:

SQLException

setBoolean

public void setBoolean(PreparedStatement stmnt,
                       int idx,
                       boolean val,
                       Column col)
                throws SQLException

Description copied from class: DBDictionary

Set the given value as a parameter to the statement.

Overrides:

setBoolean in class DBDictionary

Throws:

SQLException

getCreateTableSQL

public String[] getCreateTableSQL(Table table)

Description copied from class: DBDictionary

Return a series of SQL statements to create the given table, complete with columns. Indexes and constraints will be created separately.

Overrides:

getCreateTableSQL in class DBDictionary

getAddPrimaryKeySQL

public String[] getAddPrimaryKeySQL(PrimaryKey pk)

Description copied from class: DBDictionary

Return a series of SQL statements to add the given primary key to its table. Return an empty array if operation not supported. Returns ALTER TABLE <table name> ADD <pk cons sql > by default.

Overrides:

getAddPrimaryKeySQL in class DBDictionary

getAddForeignKeySQL

public String[] getAddForeignKeySQL(ForeignKey fk)

Description copied from class: DBDictionary

Return a series of SQL statements to add the given foreign key to its table. Return an empty array if operation not supported. Returns ALTER TABLE <table name> ADD <fk cons sql > by default.

Overrides:

getAddForeignKeySQL in class DBDictionary

supportsRandomAccessResultSet

public boolean supportsRandomAccessResultSet(Select sel,
                                             boolean forUpdate)

Description copied from class: DBDictionary

Return false if the given select requires a forward-only result set.

Overrides:

supportsRandomAccessResultSet in class DBDictionary

decorate

public Connection decorate(Connection conn)
                    throws SQLException

Description copied from class: DBDictionary

Decorate the given connection if needed. Some databases require special handling for JDBC bugs. This implementation issues any DBDictionary.initializationSQL that has been set for the dictionary but does not decoreate the connection.

Specified by:

decorate in interface ConnectionDecorator

Overrides:

decorate in class DBDictionary

Throws:

SQLException

indexOf

public void indexOf(SQLBuffer buf,
                    FilterValue str,
                    FilterValue find,
                    FilterValue start)

Description copied from class: DBDictionary

Invoke this database's indexOf function.

Overrides:

indexOf in class DBDictionary

Parameters:

buf - the SQL buffer to write the indexOf invocation to

str - a query value representing the target string

find - a query value representing the search string

start - a query value representing the start index, or null to start at the beginning

needsToCreateIndex

public boolean needsToCreateIndex(Index idx,
                                  Table table)

Overrides:

needsToCreateIndex in class DBDictionary