org.apache.nifi.serialization.record

Class ResultSetRecordSet

java.lang.Object

org.apache.nifi.serialization.record.ResultSetRecordSet

All Implemented Interfaces:

Closeable, AutoCloseable, RecordSet

public class ResultSetRecordSet
extends Object
implements RecordSet, Closeable

Field Summary

Fields

Modifier and Type	Field and Description
private static String	BIGDECIMAL_CLASS_NAME
private static String	DATE_CLASS_NAME
private int	defaultPrecision
private int	defaultScale
private static String	DOUBLE_CLASS_NAME
private static String	FLOAT_CLASS_NAME
private static String	INT_CLASS_NAME
private static int	JDBC_DEFAULT_PRECISION_VALUE
private static int	JDBC_DEFAULT_SCALE_VALUE
private static org.slf4j.Logger	logger
private static String	LONG_CLASS_NAME
private boolean	moreRows
private ResultSet	rs
private Set<String>	rsColumnNames
private RecordSchema	schema
private static String	STRING_CLASS_NAME

Constructor Summary

Constructors

Constructor and Description
ResultSetRecordSet(ResultSet rs, RecordSchema readerSchema)
ResultSetRecordSet(ResultSet rs, RecordSchema readerSchema, int defaultPrecision, int defaultScale)

Method Summary

Modifier and Type	Method and Description
void	close()
protected Record	createRecord(ResultSet rs)
private RecordSchema	createSchema(ResultSet rs, RecordSchema readerSchema)
private static DataType	getArrayBaseType(Array array)
private DataType	getDataType(int sqlType, ResultSet rs, int columnIndex, RecordSchema readerSchema)
private static RecordFieldType	getFieldType(int sqlType, String valueClassName)
protected ResultSet	getResultSet()
RecordSchema	getSchema()
protected boolean	hasMoreRows()
Record	next()
private Object	normalizeValue(Object value)
protected void	setMoreRows(boolean moreRows)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.nifi.serialization.record.RecordSet

limit, of

Field Detail

logger

private static final org.slf4j.Logger logger

JDBC_DEFAULT_PRECISION_VALUE

private static final int JDBC_DEFAULT_PRECISION_VALUE

See Also:

Constant Field Values

JDBC_DEFAULT_SCALE_VALUE

private static final int JDBC_DEFAULT_SCALE_VALUE

See Also:

Constant Field Values

rs

private final ResultSet rs

schema

private final RecordSchema schema

rsColumnNames

private final Set<String> rsColumnNames

defaultPrecision

private final int defaultPrecision

defaultScale

private final int defaultScale

moreRows

private boolean moreRows

STRING_CLASS_NAME

private static final String STRING_CLASS_NAME

INT_CLASS_NAME

private static final String INT_CLASS_NAME

LONG_CLASS_NAME

private static final String LONG_CLASS_NAME

DATE_CLASS_NAME

private static final String DATE_CLASS_NAME

DOUBLE_CLASS_NAME

private static final String DOUBLE_CLASS_NAME

FLOAT_CLASS_NAME

private static final String FLOAT_CLASS_NAME

BIGDECIMAL_CLASS_NAME

private static final String BIGDECIMAL_CLASS_NAME

Constructor Detail

ResultSetRecordSet

public ResultSetRecordSet(ResultSet rs,
                          RecordSchema readerSchema)
                   throws SQLException

Throws:

SQLException

ResultSetRecordSet

public ResultSetRecordSet(ResultSet rs,
                          RecordSchema readerSchema,
                          int defaultPrecision,
                          int defaultScale)
                   throws SQLException

Throws:

SQLException

Method Detail

getSchema

public RecordSchema getSchema()

Specified by:

getSchema in interface RecordSet

Returns:

the RecordSchema that applies to the records in this RecordSet

getResultSet

protected ResultSet getResultSet()

hasMoreRows

protected boolean hasMoreRows()

setMoreRows

protected void setMoreRows(boolean moreRows)

next

public Record next()
            throws IOException

Specified by:

next in interface RecordSet

Returns:

the next Record in the set or null if there are no more records

Throws:

IOException

close

public void close()

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

createRecord

protected Record createRecord(ResultSet rs)
                       throws SQLException

Throws:

SQLException

normalizeValue

private Object normalizeValue(Object value)
                       throws SQLException

Throws:

SQLException

createSchema

private RecordSchema createSchema(ResultSet rs,
                                  RecordSchema readerSchema)
                           throws SQLException

Throws:

SQLException

getDataType

private DataType getDataType(int sqlType,
                             ResultSet rs,
                             int columnIndex,
                             RecordSchema readerSchema)
                      throws SQLException

Throws:

SQLException

getArrayBaseType

private static DataType getArrayBaseType(Array array)
                                  throws SQLException

Throws:

SQLException

getFieldType

private static RecordFieldType getFieldType(int sqlType,
                                            String valueClassName)