Package com.illumon.iris.db.v2.locations.parquet.topage

Class ToPage.Wrap<ATTR extends Attributes.Any,INNER_RESULT,OUTER_RESULT>

java.lang.Object

com.illumon.iris.db.v2.locations.parquet.topage.ToPage.Wrap<ATTR,INNER_RESULT,OUTER_RESULT>

All Implemented Interfaces:

ToPage<ATTR,OUTER_RESULT>

Direct Known Subclasses:

ToArrayPage, ToDbArrayPage, ToStringSetPage

Enclosing interface:

ToPage<ATTR extends Attributes.Any,RESULT>

public abstract static class ToPage.Wrap<ATTR extends Attributes.Any,INNER_RESULT,OUTER_RESULT>
extends Object
implements ToPage<ATTR,OUTER_RESULT>

Nested Class Summary

Nested classes/interfaces inherited from interface com.illumon.iris.db.v2.locations.parquet.topage.ToPage

ToPage.Wrap<ATTR extends Attributes.Any,INNER_RESULT,OUTER_RESULT>

Method Summary

Modifier and Type	Method	Description
abstract OUTER_RESULT	convertResult(Object object)
Chunk<ATTR>	getDictionaryChunk()
ToPage<Attributes.DictionaryKeys,int[]>	getDictionaryKeysToPage()
Object	getResult(io.deephaven.parquet.base.ColumnPageReader columnPageReader)
StringSetImpl.ReversibleLookup	getReversibleLookup()
Object	nullValue()

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.illumon.iris.db.v2.locations.parquet.topage.ToPage

getChunkType, getNativeComponentType, getNativeType, makeDbArray, toPage

Method Details

nullValue

public Object nullValue()

Specified by:

nullValue in interface ToPage<ATTR extends Attributes.Any,INNER_RESULT>

Returns:

The null value stored in the elements of the arrays produced by thus object.

getResult

@NotNull public Object getResult(io.deephaven.parquet.base.ColumnPageReader columnPageReader) throws IOException

Specified by:

getResult in interface ToPage<ATTR extends Attributes.Any,INNER_RESULT>

Returns:

Gets the result from the columnPageReader.

Throws:

IOException

convertResult

public abstract OUTER_RESULT convertResult(Object object)

Specified by:

convertResult in interface ToPage<ATTR extends Attributes.Any,INNER_RESULT>

Returns:

Produce the array of values from the result

getDictionaryChunk

public Chunk<ATTR> getDictionaryChunk()

Specified by:

getDictionaryChunk in interface ToPage<ATTR extends Attributes.Any,INNER_RESULT>

Returns:

the dictionary stored for this column, if one exists, otherwise null.

getDictionaryKeysToPage

public ToPage<Attributes.DictionaryKeys,int[]> getDictionaryKeysToPage()

Specified by:

getDictionaryKeysToPage in interface ToPage<ATTR extends Attributes.Any,INNER_RESULT>

Returns:

an object implementing ToPage which will read the integral Dictionary Indices when there's a dictionary for this column (as opposed to the values, which this object's toPage will return). This will return null iff ToPage.getDictionaryChunk() returns null.

getReversibleLookup

public StringSetImpl.ReversibleLookup getReversibleLookup()

Specified by:

getReversibleLookup in interface ToPage<ATTR extends Attributes.Any,INNER_RESULT>

Returns:

an reverse lookup map of the dictionary.