com.j256.ormlite.db
Class DerbyEmbeddedDatabaseType

java.lang.Object
  com.j256.ormlite.db.BaseDatabaseType
      com.j256.ormlite.db.DerbyEmbeddedDatabaseType

All Implemented Interfaces:

DatabaseType

Direct Known Subclasses:

DerbyClientServerDatabaseType

public class DerbyEmbeddedDatabaseType
extends BaseDatabaseType
implements DatabaseType

Derby database type information used to create the tables, etc.. This is for an embedded Derby databse. For client connections to a remote Derby server, you should use DerbyClientServerDatabaseType.

Author:

graywatson

Nested Class Summary

Nested classes/interfaces inherited from class com.j256.ormlite.db.BaseDatabaseType

BaseDatabaseType.BooleanNumberFieldConverter

Field Summary

Fields inherited from class com.j256.ormlite.db.BaseDatabaseType

booleanConverter

Constructor Summary

DerbyEmbeddedDatabaseType()

Method Summary

protected void	appendBooleanType(StringBuilder sb) Output the SQL type for a Java boolean.
protected void	appendByteType(StringBuilder sb) Output the SQL type for a Java byte.
void	appendEscapedEntityName(StringBuilder sb, String word) Add a entity-name word to the string builder wrapped in the proper characters to escape it.
protected void	appendObjectType(StringBuilder sb) Output the SQL type for a Java object.
protected void	configureGeneratedId(StringBuilder sb, FieldType fieldType, List<String> statementsBefore, List<String> additionalArgs, List<String> queriesAfter) Output the SQL necessary to configure a generated-id column.
String	getDriverClassName() Return the class name of the database driver.
String	getDriverUrlPart() Return the part in the database URI which identifies the particular database.
FieldConverter	getFieldConverter(FieldType fieldType) Return the FieldConverter to associate with the FieldType.
boolean	isEntityNamesMustBeUpCase() Returns true if table and field names should be made uppercase.
boolean	isLimitSqlSupported() Return true if the database supports the LIMIT SQL command.

Methods inherited from class com.j256.ormlite.db.BaseDatabaseType

appendCanBeNull, appendColumnArg, appendCreateTableSuffix, appendDateType, appendDefaultValue, appendDoubleType, appendEnumIntType, appendEnumStringType, appendEscapedWord, appendFloatType, appendIntegerType, appendLimitValue, appendLongType, appendSelectNextValFromSequence, appendShortType, appendStringType, buildDatabaseAccess, configureGeneratedIdSequence, configureId, convertColumnName, dropColumnArg, generateIdSequenceName, getCommentLinePrefix, getDefaultVarcharWidth, isCreateTableReturnsZero, isIdSequenceNeeded, isLimitAfterSelect, isVarcharFieldWidthSupported, loadDriver

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.j256.ormlite.db.DatabaseType

appendColumnArg, appendCreateTableSuffix, appendEscapedWord, appendLimitValue, appendSelectNextValFromSequence, buildDatabaseAccess, convertColumnName, dropColumnArg, generateIdSequenceName, getCommentLinePrefix, isCreateTableReturnsZero, isIdSequenceNeeded, isLimitAfterSelect, isVarcharFieldWidthSupported, loadDriver

Constructor Detail

DerbyEmbeddedDatabaseType

public DerbyEmbeddedDatabaseType()

Method Detail

getDriverUrlPart

public String getDriverUrlPart()

Description copied from interface: DatabaseType

Return the part in the database URI which identifies the particular database. Usually the URI is in the form jdbc:ddd:... where ddd is the driver url part.

Specified by:

getDriverUrlPart in interface DatabaseType

getDriverClassName

public String getDriverClassName()

Description copied from interface: DatabaseType

Return the class name of the database driver.

Specified by:

getDriverClassName in interface DatabaseType

getFieldConverter

public FieldConverter getFieldConverter(FieldType fieldType)

Description copied from interface: DatabaseType

Return the FieldConverter to associate with the FieldType. This allows the database instance to convert a field as necessary before it goes to the database.

Specified by:

getFieldConverter in interface DatabaseType

Overrides:

getFieldConverter in class BaseDatabaseType

appendBooleanType

protected void appendBooleanType(StringBuilder sb)

Description copied from class: BaseDatabaseType

Output the SQL type for a Java boolean.

Overrides:

appendBooleanType in class BaseDatabaseType

appendByteType

protected void appendByteType(StringBuilder sb)

Description copied from class: BaseDatabaseType

Output the SQL type for a Java byte.

Overrides:

appendByteType in class BaseDatabaseType

appendObjectType

protected void appendObjectType(StringBuilder sb)

Description copied from class: BaseDatabaseType

Output the SQL type for a Java object.

Overrides:

appendObjectType in class BaseDatabaseType

configureGeneratedId

protected void configureGeneratedId(StringBuilder sb,
                                    FieldType fieldType,
                                    List<String> statementsBefore,
                                    List<String> additionalArgs,
                                    List<String> queriesAfter)

Description copied from class: BaseDatabaseType

Output the SQL necessary to configure a generated-id column. This may add to the before statements list or additional arguments later. NOTE: Only one of configureGeneratedIdSequence, configureGeneratedId, or configureId will be called.

Overrides:

configureGeneratedId in class BaseDatabaseType

appendEscapedEntityName

public void appendEscapedEntityName(StringBuilder sb,
                                    String word)

Description copied from interface: DatabaseType

Add a entity-name word to the string builder wrapped in the proper characters to escape it. This avoids problems with table, column, and sequence-names being reserved words.

Specified by:

appendEscapedEntityName in interface DatabaseType

Overrides:

appendEscapedEntityName in class BaseDatabaseType

isLimitSqlSupported

public boolean isLimitSqlSupported()

Description copied from interface: DatabaseType

Return true if the database supports the LIMIT SQL command. Otherwise we have to use the Statement.setMaxRows(int) instead. See prepareSqlStatement in MappedPreparedQuery.

Specified by:

isLimitSqlSupported in interface DatabaseType

Overrides:

isLimitSqlSupported in class BaseDatabaseType

isEntityNamesMustBeUpCase

public boolean isEntityNamesMustBeUpCase()

Description copied from interface: DatabaseType

Returns true if table and field names should be made uppercase.

Turns out that Derby and Hsqldb are doing something wrong (IMO) with entity names. If you create a table with the name "footable" (with the quotes) then it will be created as lowercase footable, case sensitive. However, if you then issue the query 'select * from footable' it won't find the table because it gets promoted to be FOOTABLE and is searched in a case sensitive manner. So for these databases, entity names have to be forced to be uppercase so external queries will also work.

Specified by:

isEntityNamesMustBeUpCase in interface DatabaseType

Overrides:

isEntityNamesMustBeUpCase in class BaseDatabaseType