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•	org.apache.derby.catalog.types.* (12)

• org.apache.derby.catalog: Javadoc index of package org.apache.derby.catalog.


Package Samples:

• org.apache.derby.catalog.types

Classes:

• GetProcedureColumns: Use of VirtualTableInterface to provide support for DatabaseMetaData.getProcedureColumns(). This class is called from a Query constructed in java/org.apache.derby.impl.jdbc/metadata.properties: The VTI will return columns 3-14, an extra column to the specification METHOD_ID is returned to distinguish between overloaded methods. PROCEDURE_CAT String => procedure catalog (may be null) PROCEDURE_SCHEM String => procedure schema (may be null) PROCEDURE_NAME String => procedure name COLUMN_NAME String => column/parameter name COLUMN_TYPE Short => kind of column/parameter: procedureColumnUnknown - nobody ...
• Dependable: A Dependable is an in-memory representation of an object managed by the Dependency System. There are two kinds of Dependables: Providers and Dependents. Dependents depend on Providers and are responsible for executing compensating logic when their Providers change. The fields represent the known Dependables. Persistent dependencies (those between database objects) are stored in SYS.SYSDEPENDS.
• TriggerNewTransitionRows: Provides information about about a a set of new rows created by a trigger action. This class implements only JDBC 1.2, not JDBC 2.0. You cannot compile this class with JDK1.2, since it implements only the JDBC 1.2 ResultSet interface and not the JDBC 2.0 ResultSet interface. You can only use this class in a JDK 1.2 runtime environment if no JDBC 2.0 calls are made against it.
• TriggerOldTransitionRows: Provides information about a set of rows before a trigger action changed them. This class implements only JDBC 1.2, not JDBC 2.0. You cannot compile this class with JDK1.2, since it implements only the JDBC 1.2 ResultSet interface and not the JDBC 2.0 ResultSet interface. You can only use this class in a JDK 1.2 runtime environment if no JDBC 2.0 calls are made against it.
• DependableFinder: A DependableFinder is an object that can find an in-memory Dependable, given the Dependable's ID. The DependableFinder is able to write itself to disk and, once read back into memory, locate the in-memory Dependable that it represents. DependableFinder objects are stored in SYS.SYSDEPENDS to record dependencies between database objects.
• SystemProcedures: Some system built-in procedures, and help routines. Now used for network server. These procedures are built-in to the SYSIBM schema which match the DB2 SYSIBM procedures. Currently information on those can be found at url: ftp://ftp.software.ibm.com/ps/products/db2/info/vr8/pdf/letter/db2l2e80.pdf
• IndexDescriptor: This interface describes an index. It is used in the column SYS.SYSCONGLOMERATES.DESCRIPTOR and describes everything about an index except the index name and the table on which the index is defined. That information is available in the columns NAME and TABLEID of the table SYS.SYSCONGLOMERATES.
• UUID: An interface for accessing Cloudscape UUIDs, unique identifiers. The values in the system catalog held in ID columns with a type of CHAR(36) are the string representations of these UUIDs. A UUID implements equals() and hashCode based on value equality.
• Statistics: This interface is used in the column SYS.SYSSTATISTICS.STATISTICS. It encapsulates information collected by the UPDATE STATISTICS command and is used internally by the Cloudscape optimizer to estimate cost and selectivity of different query plans.
• AliasInfo: An interface for describing an alias in Cloudscape systems. In a Cloudscape system, an alias can be one of the following: method alias class alias synonym user-defined aggregate
• ReferencedColumns: Provides information about the columns that are referenced by a CHECK CONSTRAINT definition. It is used in the column SYS.SYSCHECKS.REFERENCEDCOLUMNSDESCRIPTOR.
• TypeDescriptor: An interface for describing types in Cloudscape systems. The values in system catalog DATATYPE columns are of type TypeDescriptor.
• DefaultInfo: An interface for describing a default for a column or parameter in Cloudscape systems.
• BaseTypeIdImpl: This class is the base class for all type ids that are written to the system tables.
• RoutineAliasInfo: Describe a r (procedure or function) alias.
• SynonymAliasInfo: Describe an S (Synonym) alias.
• MethodAliasInfo: Describe a method alias.
• DecimalTypeIdImpl
• DefaultInfoImpl
• IndexDescriptorImpl
• ReferencedColumnsDescriptorImpl
• StatisticsImpl
• TypeDescriptorImpl
• TypesImplInstanceGetter
• UserDefinedTypeIdImpl

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