org.apache.calcite.avatica

Class MetaImpl

java.lang.Object

org.apache.calcite.avatica.MetaImpl

All Implemented Interfaces:

Meta

public abstract class MetaImpl
extends Object
implements Meta

Basic implementation of Meta.

Each sub-class must implement the two remaining abstract methods, Meta.prepare(org.apache.calcite.avatica.Meta.ConnectionHandle, java.lang.String, long) and Meta.prepareAndExecute(org.apache.calcite.avatica.Meta.StatementHandle, java.lang.String, long, org.apache.calcite.avatica.Meta.PrepareCallback). It should also override metadata methods such as getCatalogs(Meta.ConnectionHandle) and getTables(org.apache.calcite.avatica.Meta.ConnectionHandle, java.lang.String, org.apache.calcite.avatica.Meta.Pat, org.apache.calcite.avatica.Meta.Pat, java.util.List<java.lang.String>) for the element types for which it has instances; the default metadata methods return empty collections.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	MetaImpl.ColumnNoNulls Annotation that indicates that a meta field may not contain null values.
static interface	MetaImpl.ColumnNullable Annotation that indicates that a meta field may contain null values.
static interface	MetaImpl.ColumnNullableUnknown Annotation that indicates that it is unknown whether a meta field may contain null values.
static class	MetaImpl.MetaAttribute Metadata describing an attribute.
static class	MetaImpl.MetaBestRowIdentifier Metadata describing the best identifier for a row.
static class	MetaImpl.MetaCatalog Metadata describing a catalog.
static class	MetaImpl.MetaClientInfoProperty Metadata describing a client info property.
static class	MetaImpl.MetaColumn Metadata describing a column.
static class	MetaImpl.MetaColumnPrivilege Metadata describing a column privilege.
static class	MetaImpl.MetaCrossReference Metadata describing a cross reference.
static class	MetaImpl.MetaExportedKey Metadata describing an exported key.
static class	MetaImpl.MetaFunction Metadata describing a function.
static class	MetaImpl.MetaFunctionColumn Metadata describing a function column.
static class	MetaImpl.MetaImportedKey Metadata describing an imported key.
static class	MetaImpl.MetaIndexInfo Metadata describing index info.
static class	MetaImpl.MetaPrimaryKey Metadata describing a primary key.
static class	MetaImpl.MetaProcedure Metadata describing a procedure.
static class	MetaImpl.MetaProcedureColumn Metadata describing a procedure column.
static class	MetaImpl.MetaPseudoColumn Metadata describing a pseudo column.
static class	MetaImpl.MetaSchema Metadata describing a schema.
static class	MetaImpl.MetaSuperTable Metadata describing a super-table.
static class	MetaImpl.MetaSuperType Metadata describing a super-type.
static class	MetaImpl.MetaTable Metadata describing a table.
static class	MetaImpl.MetaTablePrivilege Metadata describing a table privilege.
static class	MetaImpl.MetaTableType Metadata describing a table type.
static class	MetaImpl.MetaTypeInfo Metadata describing type info.
static class	MetaImpl.MetaUdt Metadata describing a user-defined type.
static class	MetaImpl.MetaVersionColumn Metadata describing a version column.
static interface	MetaImpl.Named An object that has a name.

Nested classes/interfaces inherited from interface org.apache.calcite.avatica.Meta

Meta.ConnectionHandle, Meta.ConnectionProperties, Meta.CursorFactory, Meta.DatabaseProperty, Meta.ExecuteBatchResult, Meta.ExecuteResult, Meta.Factory, Meta.Frame, Meta.MetaResultSet, Meta.Pat, Meta.PrepareCallback, Meta.Signature, Meta.StatementHandle, Meta.StatementType, Meta.Style

Field Summary

Fields

Modifier and Type	Field and Description
protected AvaticaConnection	connection The AvaticaConnection backing this.
protected ConnectionPropertiesImpl	connProps Represents the various states specific to connection.

Constructor Summary

Constructors

Constructor and Description
MetaImpl(AvaticaConnection connection)

Method Summary

Modifier and Type	Method and Description
static boolean	checkParameterValueHasNull(List<TypedValue> parameterValues) Returns whether a list of parameter values has any null elements.
void	closeConnection(Meta.ConnectionHandle ch) Closes a connection
static List<List<Object>>	collect(Meta.CursorFactory cursorFactory, Iterable<Object> iterable, List<List<Object>> list)
static List<List<Object>>	collect(Meta.CursorFactory cursorFactory, Iterator<Object> iterator, List<List<Object>> list)
static ColumnMetaData	columnMetaData(String name, int index, Class<?> type, boolean columnNullable)
static ColumnMetaData	columnMetaData(String name, int index, Class<?> type, int columnNullable)
static ColumnMetaData	columnMetaData(String name, int index, ColumnMetaData.AvaticaType type, boolean columnNullable)
static ColumnMetaData	columnMetaData(String name, int index, ColumnMetaData.AvaticaType type, boolean columnNullable, boolean signed)
static ColumnMetaData	columnMetaData(String name, int index, ColumnMetaData.AvaticaType type, int columnNullable)
static ColumnMetaData	columnMetaData(String name, int index, ColumnMetaData.AvaticaType type, int columnNullable, boolean signed)
Meta.ConnectionProperties	connectionSync(Meta.ConnectionHandle ch, Meta.ConnectionProperties connProps) Synchronizes client and server view of connection properties.
static Cursor	createCursor(Meta.CursorFactory cursorFactory, Iterable<Object> iterable) Uses a Meta.CursorFactory to convert an Iterable into a Cursor.
protected <E> Meta.MetaResultSet	createEmptyResultSet(Class<E> clazz) Creates an empty result set.
Iterable<Object>	createIterable(Meta.StatementHandle handle, QueryState state, Meta.Signature signature, List<TypedValue> parameterValues, Meta.Frame firstFrame) Creates an iterable for a result set.
protected Meta.MetaResultSet	createResultSet(Map<String,Object> internalParameters, List<ColumnMetaData> columns, Meta.CursorFactory cursorFactory, Meta.Frame firstFrame)
Meta.StatementHandle	createStatement(Meta.ConnectionHandle ch) Called during the creation of a statement to allocate a new handle.
Meta.Frame	fetch(AvaticaStatement stmt, List<TypedValue> parameterValues, long offset, int fetchMaxRowCount)
protected static ColumnMetaData.StructType	fieldMetaData(Class<?> clazz)
Meta.MetaResultSet	getAttributes(Meta.ConnectionHandle ch, String catalog, Meta.Pat schemaPattern, Meta.Pat typeNamePattern, Meta.Pat attributeNamePattern) Per DatabaseMetaData.getAttributes(String, String, String, String).
Meta.MetaResultSet	getBestRowIdentifier(Meta.ConnectionHandle ch, String catalog, String schema, String table, int scope, boolean nullable) Per DatabaseMetaData.getBestRowIdentifier(String, String, String, int, boolean).
Meta.MetaResultSet	getCatalogs(Meta.ConnectionHandle ch) Per DatabaseMetaData.getCatalogs().
Meta.MetaResultSet	getClientInfoProperties(Meta.ConnectionHandle ch) Per DatabaseMetaData.getClientInfoProperties().
protected static int	getColumnNullability(Field field)
Meta.MetaResultSet	getColumnPrivileges(Meta.ConnectionHandle ch, String catalog, String schema, String table, Meta.Pat columnNamePattern) Per DatabaseMetaData.getColumnPrivileges(String, String, String, String).
Meta.MetaResultSet	getColumns(Meta.ConnectionHandle ch, String catalog, Meta.Pat schemaPattern, Meta.Pat tableNamePattern, Meta.Pat columnNamePattern) Per DatabaseMetaData.getColumns(String, String, String, String).
Meta.MetaResultSet	getCrossReference(Meta.ConnectionHandle ch, String parentCatalog, String parentSchema, String parentTable, String foreignCatalog, String foreignSchema, String foreignTable) Per DatabaseMetaData.getCrossReference(String, String, String, String, String, String).
Map<Meta.DatabaseProperty,Object>	getDatabaseProperties(Meta.ConnectionHandle ch) Returns a map of static database properties.
Meta.MetaResultSet	getExportedKeys(Meta.ConnectionHandle ch, String catalog, String schema, String table) Per DatabaseMetaData.getExportedKeys(String, String, String).
Meta.MetaResultSet	getFunctionColumns(Meta.ConnectionHandle ch, String catalog, Meta.Pat schemaPattern, Meta.Pat functionNamePattern, Meta.Pat columnNamePattern) Per DatabaseMetaData.getFunctionColumns(String, String, String, String).
Meta.MetaResultSet	getFunctions(Meta.ConnectionHandle ch, String catalog, Meta.Pat schemaPattern, Meta.Pat functionNamePattern) Per DatabaseMetaData.getFunctions(String, String, String).
Meta.MetaResultSet	getImportedKeys(Meta.ConnectionHandle ch, String catalog, String schema, String table) Per DatabaseMetaData.getImportedKeys(String, String, String).
Meta.MetaResultSet	getIndexInfo(Meta.ConnectionHandle ch, String catalog, String schema, String table, boolean unique, boolean approximate) Per DatabaseMetaData.getIndexInfo(String, String, String, boolean, boolean).
Meta.MetaResultSet	getPrimaryKeys(Meta.ConnectionHandle ch, String catalog, String schema, String table) Per DatabaseMetaData.getPrimaryKeys(String, String, String).
Meta.MetaResultSet	getProcedureColumns(Meta.ConnectionHandle ch, String catalog, Meta.Pat schemaPattern, Meta.Pat procedureNamePattern, Meta.Pat columnNamePattern) Per DatabaseMetaData.getProcedureColumns(String, String, String, String).
Meta.MetaResultSet	getProcedures(Meta.ConnectionHandle ch, String catalog, Meta.Pat schemaPattern, Meta.Pat procedureNamePattern) Per DatabaseMetaData.getProcedures(String, String, String).
Meta.MetaResultSet	getPseudoColumns(Meta.ConnectionHandle ch, String catalog, Meta.Pat schemaPattern, Meta.Pat tableNamePattern, Meta.Pat columnNamePattern) Per DatabaseMetaData.getPseudoColumns(String, String, String, String).
Meta.MetaResultSet	getSchemas(Meta.ConnectionHandle ch, String catalog, Meta.Pat schemaPattern)
Meta.MetaResultSet	getSuperTables(Meta.ConnectionHandle ch, String catalog, Meta.Pat schemaPattern, Meta.Pat tableNamePattern) Per DatabaseMetaData.getSuperTables(String, String, String).
Meta.MetaResultSet	getSuperTypes(Meta.ConnectionHandle ch, String catalog, Meta.Pat schemaPattern, Meta.Pat typeNamePattern) Per DatabaseMetaData.getSuperTypes(String, String, String).
Meta.MetaResultSet	getTablePrivileges(Meta.ConnectionHandle ch, String catalog, Meta.Pat schemaPattern, Meta.Pat tableNamePattern) Per DatabaseMetaData.getTablePrivileges(String, String, String).
Meta.MetaResultSet	getTables(Meta.ConnectionHandle ch, String catalog, Meta.Pat schemaPattern, Meta.Pat tableNamePattern, List<String> typeList) Per DatabaseMetaData.getTables(String, String, String, String[]).
Meta.MetaResultSet	getTableTypes(Meta.ConnectionHandle ch) Per DatabaseMetaData.getTableTypes().
Meta.MetaResultSet	getTypeInfo(Meta.ConnectionHandle ch) Per DatabaseMetaData.getTypeInfo().
Meta.MetaResultSet	getUDTs(Meta.ConnectionHandle ch, String catalog, Meta.Pat schemaPattern, Meta.Pat typeNamePattern, int[] types) Per DatabaseMetaData.getUDTs(String, String, String, int[]).
Meta.MetaResultSet	getVersionColumns(Meta.ConnectionHandle ch, String catalog, String schema, String table) Per DatabaseMetaData.getVersionColumns(String, String, String).
void	openConnection(Meta.ConnectionHandle ch, Map<String,String> info) Opens (creates) a connection.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.calcite.avatica.Meta

closeStatement, commit, execute, execute, executeBatch, fetch, prepare, prepareAndExecute, prepareAndExecute, prepareAndExecuteBatch, rollback, syncResults

Field Detail

connection

protected final AvaticaConnection connection

The AvaticaConnection backing this.

connProps

protected final ConnectionPropertiesImpl connProps

Represents the various states specific to connection.

Note: this instance is used recursively with connection's getter and setter methods.

Constructor Detail

MetaImpl

public MetaImpl(AvaticaConnection connection)

Method Detail

createCursor

public static Cursor createCursor(Meta.CursorFactory cursorFactory,
                                  Iterable<Object> iterable)

Uses a Meta.CursorFactory to convert an Iterable into a Cursor.

collect

public static List<List<Object>> collect(Meta.CursorFactory cursorFactory,
                                         Iterator<Object> iterator,
                                         List<List<Object>> list)

collect

public static List<List<Object>> collect(Meta.CursorFactory cursorFactory,
                                         Iterable<Object> iterable,
                                         List<List<Object>> list)

openConnection

public void openConnection(Meta.ConnectionHandle ch,
                           Map<String,String> info)

Description copied from interface: Meta

Opens (creates) a connection. The client allocates its own connection ID which the server is then made aware of through the Meta.ConnectionHandle. The Map info argument is analogous to the Properties typically passed to a "normal" JDBC Driver. Avatica specific properties should not be included -- only properties for the underlying driver.

Specified by:

openConnection in interface Meta

Parameters:

ch - A ConnectionHandle encapsulates information about the connection to be opened as provided by the client.

info - A Map corresponding to the Properties typically passed to a JDBC Driver.

closeConnection

public void closeConnection(Meta.ConnectionHandle ch)

Description copied from interface: Meta

Closes a connection

Specified by:

closeConnection in interface Meta

connectionSync

public Meta.ConnectionProperties connectionSync(Meta.ConnectionHandle ch,
                                                Meta.ConnectionProperties connProps)

Description copied from interface: Meta

Synchronizes client and server view of connection properties.

Note: this interface is considered "experimental" and may undergo further changes as this functionality is extended to other aspects of state management for Connection, Statement, and ResultSet.

Specified by:

connectionSync in interface Meta

createStatement

public Meta.StatementHandle createStatement(Meta.ConnectionHandle ch)

Description copied from interface: Meta

Called during the creation of a statement to allocate a new handle.

Specified by:

createStatement in interface Meta

Parameters:

ch - Connection handle

createEmptyResultSet

protected <E> Meta.MetaResultSet createEmptyResultSet(Class<E> clazz)

Creates an empty result set. Useful for JDBC metadata methods that are not implemented or which query entities that are not supported (e.g. triggers in Lingual).

columnMetaData

public static ColumnMetaData columnMetaData(String name,
                                            int index,
                                            Class<?> type,
                                            boolean columnNullable)

columnMetaData

public static ColumnMetaData columnMetaData(String name,
                                            int index,
                                            ColumnMetaData.AvaticaType type,
                                            boolean columnNullable)

columnMetaData

public static ColumnMetaData columnMetaData(String name,
                                            int index,
                                            ColumnMetaData.AvaticaType type,
                                            boolean columnNullable,
                                            boolean signed)

columnMetaData

public static ColumnMetaData columnMetaData(String name,
                                            int index,
                                            Class<?> type,
                                            int columnNullable)

columnMetaData

public static ColumnMetaData columnMetaData(String name,
                                            int index,
                                            ColumnMetaData.AvaticaType type,
                                            int columnNullable)

columnMetaData

public static ColumnMetaData columnMetaData(String name,
                                            int index,
                                            ColumnMetaData.AvaticaType type,
                                            int columnNullable,
                                            boolean signed)

fieldMetaData

protected static ColumnMetaData.StructType fieldMetaData(Class<?> clazz)

getColumnNullability

protected static int getColumnNullability(Field field)

createResultSet

protected Meta.MetaResultSet createResultSet(Map<String,Object> internalParameters,
                                             List<ColumnMetaData> columns,
                                             Meta.CursorFactory cursorFactory,
                                             Meta.Frame firstFrame)

getDatabaseProperties

public Map<Meta.DatabaseProperty,Object> getDatabaseProperties(Meta.ConnectionHandle ch)

Description copied from interface: Meta

Returns a map of static database properties.

The provider can omit properties whose value is the same as the default.

Specified by:

getDatabaseProperties in interface Meta

getTables

public Meta.MetaResultSet getTables(Meta.ConnectionHandle ch,
                                    String catalog,
                                    Meta.Pat schemaPattern,
                                    Meta.Pat tableNamePattern,
                                    List<String> typeList)

Description copied from interface: Meta

Per DatabaseMetaData.getTables(String, String, String, String[]).

Specified by:

getTables in interface Meta

getColumns

public Meta.MetaResultSet getColumns(Meta.ConnectionHandle ch,
                                     String catalog,
                                     Meta.Pat schemaPattern,
                                     Meta.Pat tableNamePattern,
                                     Meta.Pat columnNamePattern)

Description copied from interface: Meta

Per DatabaseMetaData.getColumns(String, String, String, String).

Specified by:

getColumns in interface Meta

getSchemas

public Meta.MetaResultSet getSchemas(Meta.ConnectionHandle ch,
                                     String catalog,
                                     Meta.Pat schemaPattern)

Specified by:

getSchemas in interface Meta

getCatalogs

public Meta.MetaResultSet getCatalogs(Meta.ConnectionHandle ch)

Description copied from interface: Meta

Per DatabaseMetaData.getCatalogs().

Specified by:

getCatalogs in interface Meta

getTableTypes

public Meta.MetaResultSet getTableTypes(Meta.ConnectionHandle ch)

Description copied from interface: Meta

Per DatabaseMetaData.getTableTypes().

Specified by:

getTableTypes in interface Meta

getProcedures

public Meta.MetaResultSet getProcedures(Meta.ConnectionHandle ch,
                                        String catalog,
                                        Meta.Pat schemaPattern,
                                        Meta.Pat procedureNamePattern)

Description copied from interface: Meta

Per DatabaseMetaData.getProcedures(String, String, String).

Specified by:

getProcedures in interface Meta

getProcedureColumns

public Meta.MetaResultSet getProcedureColumns(Meta.ConnectionHandle ch,
                                              String catalog,
                                              Meta.Pat schemaPattern,
                                              Meta.Pat procedureNamePattern,
                                              Meta.Pat columnNamePattern)

Description copied from interface: Meta

Per DatabaseMetaData.getProcedureColumns(String, String, String, String).

Specified by:

getProcedureColumns in interface Meta

getColumnPrivileges

public Meta.MetaResultSet getColumnPrivileges(Meta.ConnectionHandle ch,
                                              String catalog,
                                              String schema,
                                              String table,
                                              Meta.Pat columnNamePattern)

Description copied from interface: Meta

Per DatabaseMetaData.getColumnPrivileges(String, String, String, String).

Specified by:

getColumnPrivileges in interface Meta

getTablePrivileges

public Meta.MetaResultSet getTablePrivileges(Meta.ConnectionHandle ch,
                                             String catalog,
                                             Meta.Pat schemaPattern,
                                             Meta.Pat tableNamePattern)

Description copied from interface: Meta

Per DatabaseMetaData.getTablePrivileges(String, String, String).

Specified by:

getTablePrivileges in interface Meta

getBestRowIdentifier

public Meta.MetaResultSet getBestRowIdentifier(Meta.ConnectionHandle ch,
                                               String catalog,
                                               String schema,
                                               String table,
                                               int scope,
                                               boolean nullable)

Description copied from interface: Meta

Per DatabaseMetaData.getBestRowIdentifier(String, String, String, int, boolean).

Specified by:

getBestRowIdentifier in interface Meta

getVersionColumns

public Meta.MetaResultSet getVersionColumns(Meta.ConnectionHandle ch,
                                            String catalog,
                                            String schema,
                                            String table)

Description copied from interface: Meta

Per DatabaseMetaData.getVersionColumns(String, String, String).

Specified by:

getVersionColumns in interface Meta

getPrimaryKeys

public Meta.MetaResultSet getPrimaryKeys(Meta.ConnectionHandle ch,
                                         String catalog,
                                         String schema,
                                         String table)

Description copied from interface: Meta

Per DatabaseMetaData.getPrimaryKeys(String, String, String).

Specified by:

getPrimaryKeys in interface Meta

getImportedKeys

public Meta.MetaResultSet getImportedKeys(Meta.ConnectionHandle ch,
                                          String catalog,
                                          String schema,
                                          String table)

Description copied from interface: Meta

Per DatabaseMetaData.getImportedKeys(String, String, String).

Specified by:

getImportedKeys in interface Meta

getExportedKeys

public Meta.MetaResultSet getExportedKeys(Meta.ConnectionHandle ch,
                                          String catalog,
                                          String schema,
                                          String table)

Description copied from interface: Meta

Per DatabaseMetaData.getExportedKeys(String, String, String).

Specified by:

getExportedKeys in interface Meta

getCrossReference

public Meta.MetaResultSet getCrossReference(Meta.ConnectionHandle ch,
                                            String parentCatalog,
                                            String parentSchema,
                                            String parentTable,
                                            String foreignCatalog,
                                            String foreignSchema,
                                            String foreignTable)

Description copied from interface: Meta

Per DatabaseMetaData.getCrossReference(String, String, String, String, String, String).

Specified by:

getCrossReference in interface Meta

getTypeInfo

public Meta.MetaResultSet getTypeInfo(Meta.ConnectionHandle ch)

Description copied from interface: Meta

Per DatabaseMetaData.getTypeInfo().

Specified by:

getTypeInfo in interface Meta

getIndexInfo

public Meta.MetaResultSet getIndexInfo(Meta.ConnectionHandle ch,
                                       String catalog,
                                       String schema,
                                       String table,
                                       boolean unique,
                                       boolean approximate)

Description copied from interface: Meta

Per DatabaseMetaData.getIndexInfo(String, String, String, boolean, boolean).

Specified by:

getIndexInfo in interface Meta

getUDTs

public Meta.MetaResultSet getUDTs(Meta.ConnectionHandle ch,
                                  String catalog,
                                  Meta.Pat schemaPattern,
                                  Meta.Pat typeNamePattern,
                                  int[] types)

Description copied from interface: Meta

Per DatabaseMetaData.getUDTs(String, String, String, int[]).

Specified by:

getUDTs in interface Meta

getSuperTypes

public Meta.MetaResultSet getSuperTypes(Meta.ConnectionHandle ch,
                                        String catalog,
                                        Meta.Pat schemaPattern,
                                        Meta.Pat typeNamePattern)

Description copied from interface: Meta

Per DatabaseMetaData.getSuperTypes(String, String, String).

Specified by:

getSuperTypes in interface Meta

getSuperTables

public Meta.MetaResultSet getSuperTables(Meta.ConnectionHandle ch,
                                         String catalog,
                                         Meta.Pat schemaPattern,
                                         Meta.Pat tableNamePattern)

Description copied from interface: Meta

Per DatabaseMetaData.getSuperTables(String, String, String).

Specified by:

getSuperTables in interface Meta

getAttributes

public Meta.MetaResultSet getAttributes(Meta.ConnectionHandle ch,
                                        String catalog,
                                        Meta.Pat schemaPattern,
                                        Meta.Pat typeNamePattern,
                                        Meta.Pat attributeNamePattern)

Description copied from interface: Meta

Per DatabaseMetaData.getAttributes(String, String, String, String).

Specified by:

getAttributes in interface Meta

getClientInfoProperties

public Meta.MetaResultSet getClientInfoProperties(Meta.ConnectionHandle ch)

Description copied from interface: Meta

Per DatabaseMetaData.getClientInfoProperties().

Specified by:

getClientInfoProperties in interface Meta

getFunctions

public Meta.MetaResultSet getFunctions(Meta.ConnectionHandle ch,
                                       String catalog,
                                       Meta.Pat schemaPattern,
                                       Meta.Pat functionNamePattern)

Description copied from interface: Meta

Per DatabaseMetaData.getFunctions(String, String, String).

Specified by:

getFunctions in interface Meta

getFunctionColumns

public Meta.MetaResultSet getFunctionColumns(Meta.ConnectionHandle ch,
                                             String catalog,
                                             Meta.Pat schemaPattern,
                                             Meta.Pat functionNamePattern,
                                             Meta.Pat columnNamePattern)

Description copied from interface: Meta

Per DatabaseMetaData.getFunctionColumns(String, String, String, String).

Specified by:

getFunctionColumns in interface Meta

getPseudoColumns

public Meta.MetaResultSet getPseudoColumns(Meta.ConnectionHandle ch,
                                           String catalog,
                                           Meta.Pat schemaPattern,
                                           Meta.Pat tableNamePattern,
                                           Meta.Pat columnNamePattern)

Description copied from interface: Meta

Per DatabaseMetaData.getPseudoColumns(String, String, String, String).

Specified by:

getPseudoColumns in interface Meta

createIterable

public Iterable<Object> createIterable(Meta.StatementHandle handle,
                                       QueryState state,
                                       Meta.Signature signature,
                                       List<TypedValue> parameterValues,
                                       Meta.Frame firstFrame)

Description copied from interface: Meta

Creates an iterable for a result set.

The default implementation just returns iterable, which it requires to be not null; derived classes may instead choose to execute the relational expression in signature.

Specified by:

createIterable in interface Meta

fetch

public Meta.Frame fetch(AvaticaStatement stmt,
                        List<TypedValue> parameterValues,
                        long offset,
                        int fetchMaxRowCount)
                 throws NoSuchStatementException,
                        MissingResultsException

Throws:

NoSuchStatementException

MissingResultsException

checkParameterValueHasNull

public static boolean checkParameterValueHasNull(List<TypedValue> parameterValues)

Returns whether a list of parameter values has any null elements.