WritableColumnVector¶

WritableColumnVector is the <> of the ColumnVector contract for <>.

[[contract]] .WritableColumnVector Contract (Abstract Methods Only) [cols="1m,3",options="header",width="100%"] |=== | Method | Description

| getArrayLength a| [[getArrayLength]]

[source, java]¶

int getArrayLength(int rowId)¶

Used when...FIXME

| getArrayOffset a| [[getArrayOffset]]

[source, java]¶

int getArrayOffset(int rowId)¶

Used when...FIXME

| getBytesAsUTF8String a| [[getBytesAsUTF8String]]

[source, java]¶

UTF8String getBytesAsUTF8String( int rowId, int count)

Used when...FIXME

| getDictId a| [[getDictId]]

[source, java]¶

int getDictId(int rowId)¶

Used when...FIXME

| putArray a| [[putArray]]

[source, java]¶

void putArray( int rowId, int offset, int length)

Used when...FIXME

| putBoolean a| [[putBoolean]]

[source, java]¶

void putBoolean( int rowId, boolean value)

Used when...FIXME

| putBooleans a| [[putBooleans]]

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void putBooleans( int rowId, int count, boolean value)

Used when...FIXME

| putByte a| [[putByte]]

[source, java]¶

void putByte( int rowId, byte value)

Used when...FIXME

| putByteArray a| [[putByteArray]]

[source, java]¶

int putByteArray( int rowId, byte[] value, int offset, int count)

Used when...FIXME

| putBytes a| [[putBytes]]

[source, java]¶

void putBytes( int rowId, int count, byte value) void putBytes( int rowId, int count, byte[] src, int srcIndex)

Used when...FIXME

| putDouble a| [[putDouble]]

[source, java]¶

void putDouble( int rowId, double value)

Used when...FIXME

| putDoubles a| [[putDoubles]]

[source, java]¶

void putDoubles( int rowId, int count, byte[] src, int srcIndex) void putDoubles( int rowId, int count, double value) void putDoubles( int rowId, int count, double[] src, int srcIndex)

Used when...FIXME

| putFloat a| [[putFloat]]

[source, java]¶

void putFloat( int rowId, float value)

Used when...FIXME

| putFloats a| [[putFloats]]

[source, java]¶

void putFloats( int rowId, int count, byte[] src, int srcIndex) void putFloats( int rowId, int count, float value) void putFloats( int rowId, int count, float[] src, int srcIndex)

Used when...FIXME

| putInt a| [[putInt]]

[source, java]¶

void putInt( int rowId, int value)

Used when...FIXME

| putInts a| [[putInts]]

[source, java]¶

void putInts( int rowId, int count, byte[] src, int srcIndex) void putInts( int rowId, int count, int value) void putInts( int rowId, int count, int[] src, int srcIndex)

Used when...FIXME

| putIntsLittleEndian a| [[putIntsLittleEndian]]

[source, java]¶

void putIntsLittleEndian( int rowId, int count, byte[] src, int srcIndex)

Used when...FIXME

| putLong a| [[putLong]]

[source, java]¶

void putLong( int rowId, long value)

Used when...FIXME

| putLongs a| [[putLongs]]

[source, java]¶

void putLongs( int rowId, int count, byte[] src, int srcIndex) void putLongs( int rowId, int count, long value) void putLongs( int rowId, int count, long[] src, int srcIndex)

Used when...FIXME

| putLongsLittleEndian a| [[putLongsLittleEndian]]

[source, java]¶

void putLongsLittleEndian( int rowId, int count, byte[] src, int srcIndex)

Used when...FIXME

| putNotNull a| [[putNotNull]]

[source, java]¶

void putNotNull(int rowId)¶

Used when WritableColumnVector is requested to <> and <>

| putNotNulls a| [[putNotNulls]]

[source, java]¶

void putNotNulls( int rowId, int count)

Used when...FIXME

| putNull a| [[putNull]]

[source, java]¶

void putNull(int rowId)¶

Used when...FIXME

| putNulls a| [[putNulls]]

[source, java]¶

void putNulls( int rowId, int count)

Used when...FIXME

| putShort a| [[putShort]]

[source, java]¶

void putShort( int rowId, short value)

Used when...FIXME

| putShorts a| [[putShorts]]

[source, java]¶

void putShorts( int rowId, int count, byte[] src, int srcIndex) void putShorts( int rowId, int count, short value) void putShorts( int rowId, int count, short[] src, int srcIndex)

Used when...FIXME

| reserveInternal a| [[reserveInternal]]

[source, java]¶

void reserveInternal(int capacity)¶

Used when:

OffHeapColumnVector and OnHeapColumnVector are created
WritableColumnVector is requested to <>

| reserveNewColumn a| [[reserveNewColumn]]

[source, java]¶

WritableColumnVector reserveNewColumn( int capacity, DataType type)

Used when...FIXME

|===

[[implementations]] .WritableColumnVectors [cols="1,3",options="header",width="100%"] |=== | WritableColumnVector | Description

| OffHeapColumnVector | [[OffHeapColumnVector]]

| OnHeapColumnVector | [[OnHeapColumnVector]]

|===

[[creating-instance]] WritableColumnVector takes the following to be created:

[[capacity]] Number of rows to hold in a vector (aka capacity)
[[type]] Data type of the rows stored

NOTE: WritableColumnVector is a Java abstract class and cannot be <> directly. It is created indirectly for the <>.

=== [[reset]] reset Method

[source, java]¶

void reset()¶

reset...FIXME

[NOTE]¶

reset is used when:

OrcColumnarBatchReader is requested to nextBatch
VectorizedParquetRecordReader is requested to read next rows into a columnar batch
OffHeapColumnVector and OnHeapColumnVector are created

* `WritableColumnVector` is requested to <>¶

=== [[reserve]] Reserving Memory Of Required Capacity -- reserve Method

[source, java]¶

void reserve(int requiredCapacity)¶

reserve...FIXME

[NOTE]¶

reserve is used when:

OrcColumnarBatchReader is requested to putRepeatingValues, putNonNullValues, putValues, and putDecimalWritables

* `WritableColumnVector` is requested to append values¶

=== [[reserveDictionaryIds]] reserveDictionaryIds Method

[source, java]¶