org.apache.nifi.queryrecord

Class FlowFileTable

java.lang.Object

org.apache.calcite.schema.impl.AbstractTable

org.apache.nifi.queryrecord.FlowFileTable

All Implemented Interfaces:

Closeable, AutoCloseable, org.apache.calcite.schema.QueryableTable, org.apache.calcite.schema.Table, org.apache.calcite.schema.TranslatableTable, org.apache.calcite.schema.Wrapper

public class FlowFileTable
extends org.apache.calcite.schema.impl.AbstractTable
implements org.apache.calcite.schema.QueryableTable, org.apache.calcite.schema.TranslatableTable, Closeable

Field Summary

Fields

Modifier and Type	Field and Description
private Set<FlowFileEnumerator>	enumerators
private FlowFile	flowFile
private ComponentLog	logger
private int	maxRecordsRead
private RecordReaderFactory	recordReaderFactory
private RecordSchema	recordSchema
private org.apache.calcite.rel.type.RelDataType	relDataType
private ProcessSession	session

Constructor Summary

Constructors

Constructor and Description
FlowFileTable(ProcessSession session, FlowFile flowFile, RecordSchema schema, RecordReaderFactory recordReaderFactory, ComponentLog logger) Creates a FlowFile table.

Method Summary

Modifier and Type	Method and Description
<T> org.apache.calcite.linq4j.Queryable<T>	asQueryable(org.apache.calcite.linq4j.QueryProvider queryProvider, org.apache.calcite.schema.SchemaPlus schema, String tableName)
void	close()
Type	getElementType()
org.apache.calcite.linq4j.tree.Expression	getExpression(org.apache.calcite.schema.SchemaPlus schema, String tableName, Class clazz)
org.apache.calcite.schema.Schema.TableType	getJdbcTableType()
int	getRecordsRead()
private org.apache.calcite.rel.type.RelDataType	getRelDataType(DataType fieldType, org.apache.calcite.adapter.java.JavaTypeFactory typeFactory)
org.apache.calcite.rel.type.RelDataType	getRowType(org.apache.calcite.rel.type.RelDataTypeFactory typeFactory)
private boolean	isNumeric(DataType dataType)
org.apache.calcite.linq4j.Enumerable<Object>	project(int[] fields) Returns an enumerable over a given projection of the fields.
void	setFlowFile(ProcessSession session, FlowFile flowFile)
org.apache.calcite.rel.RelNode	toRel(org.apache.calcite.plan.RelOptTable.ToRelContext context, org.apache.calcite.plan.RelOptTable relOptTable)
String	toString()

Methods inherited from class org.apache.calcite.schema.impl.AbstractTable

getStatistic, isRolledUp, rolledUpColumnValidInsideAgg, unwrap

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.calcite.schema.Table

getStatistic, isRolledUp, rolledUpColumnValidInsideAgg

Methods inherited from interface org.apache.calcite.schema.Wrapper

maybeUnwrap, unwrapOrThrow

Field Detail

recordReaderFactory

private final RecordReaderFactory recordReaderFactory

logger

private final ComponentLog logger

recordSchema

private RecordSchema recordSchema

relDataType

private org.apache.calcite.rel.type.RelDataType relDataType

session

private volatile ProcessSession session

flowFile

private volatile FlowFile flowFile

maxRecordsRead

private volatile int maxRecordsRead

enumerators

private final Set<FlowFileEnumerator> enumerators

Constructor Detail

FlowFileTable

public FlowFileTable(ProcessSession session,
                     FlowFile flowFile,
                     RecordSchema schema,
                     RecordReaderFactory recordReaderFactory,
                     ComponentLog logger)

Creates a FlowFile table.

Method Detail

setFlowFile

public void setFlowFile(ProcessSession session,
                        FlowFile flowFile)

toString

public String toString()

Overrides:

toString in class Object

close

public void close()

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

project

public org.apache.calcite.linq4j.Enumerable<Object> project(int[] fields)

Returns an enumerable over a given projection of the fields.

Called from generated code.

getRecordsRead

public int getRecordsRead()

getExpression

public org.apache.calcite.linq4j.tree.Expression getExpression(org.apache.calcite.schema.SchemaPlus schema,
                                                               String tableName,
                                                               Class clazz)

Specified by:

getExpression in interface org.apache.calcite.schema.QueryableTable

getElementType

public Type getElementType()

Specified by:

getElementType in interface org.apache.calcite.schema.QueryableTable

asQueryable

public <T> org.apache.calcite.linq4j.Queryable<T> asQueryable(org.apache.calcite.linq4j.QueryProvider queryProvider,
                                                              org.apache.calcite.schema.SchemaPlus schema,
                                                              String tableName)

Specified by:

asQueryable in interface org.apache.calcite.schema.QueryableTable

toRel

public org.apache.calcite.rel.RelNode toRel(org.apache.calcite.plan.RelOptTable.ToRelContext context,
                                            org.apache.calcite.plan.RelOptTable relOptTable)

Specified by:

toRel in interface org.apache.calcite.schema.TranslatableTable

getRowType

public org.apache.calcite.rel.type.RelDataType getRowType(org.apache.calcite.rel.type.RelDataTypeFactory typeFactory)

Specified by:

getRowType in interface org.apache.calcite.schema.Table

getRelDataType

private org.apache.calcite.rel.type.RelDataType getRelDataType(DataType fieldType,
                                                               org.apache.calcite.adapter.java.JavaTypeFactory typeFactory)

isNumeric

private boolean isNumeric(DataType dataType)

getJdbcTableType

public org.apache.calcite.schema.Schema.TableType getJdbcTableType()

Specified by:

getJdbcTableType in interface org.apache.calcite.schema.Table

Overrides:

getJdbcTableType in class org.apache.calcite.schema.impl.AbstractTable