Uses of Class
org.apache.arrow.vector.VectorSchemaRoot

Packages that use VectorSchemaRoot

Package	Description
org.apache.arrow.vector
org.apache.arrow.vector.ipc
org.apache.arrow.vector.util

Uses of VectorSchemaRoot in org.apache.arrow.vector

Methods in org.apache.arrow.vector that return VectorSchemaRoot

Modifier and Type	Method and Description
VectorSchemaRoot	VectorSchemaRoot.addVector(int index, FieldVector vector) Add vector to the record batch, producing a new VectorSchemaRoot.
static VectorSchemaRoot	VectorSchemaRoot.create(Schema schema, BufferAllocator allocator) Creates a new set of empty vectors corresponding to the given schema.
static VectorSchemaRoot	VectorSchemaRoot.of(FieldVector... vectors) Constructs a new instance from vectors.
VectorSchemaRoot	VectorSchemaRoot.removeVector(int index) Remove vector from the record batch, producing a new VectorSchemaRoot.
VectorSchemaRoot	VectorSchemaRoot.slice(int index) Slice this root from desired index.
VectorSchemaRoot	VectorSchemaRoot.slice(int index, int length) Slice this root at desired index and length.

Methods in org.apache.arrow.vector with parameters of type VectorSchemaRoot

Modifier and Type	Method and Description
boolean	VectorSchemaRoot.approxEquals(VectorSchemaRoot other) Determine if two VectorSchemaRoots are approximately equal using default functions to calculate difference between float/double values.
boolean	VectorSchemaRoot.approxEquals(VectorSchemaRoot other, VectorValueEqualizer<Float4Vector> floatDiffFunction, VectorValueEqualizer<Float8Vector> doubleDiffFunction) Determine if two VectorSchemaRoots are approximately equal using the given functions to calculate difference between float/double values.
boolean	VectorSchemaRoot.equals(VectorSchemaRoot other) Determine if two VectorSchemaRoots are exactly equal.

Constructors in org.apache.arrow.vector with parameters of type VectorSchemaRoot

Constructor and Description
VectorLoader(VectorSchemaRoot root) Construct with a root to load and will create children in root based on schema.
VectorLoader(VectorSchemaRoot root, CompressionCodec.Factory factory) Construct with a root to load and will create children in root based on schema.
VectorUnloader(VectorSchemaRoot root) Constructs a new instance of the given set of vectors.
VectorUnloader(VectorSchemaRoot root, boolean includeNullCount, boolean alignBuffers) Constructs a new instance.
VectorUnloader(VectorSchemaRoot root, boolean includeNullCount, CompressionCodec codec, boolean alignBuffers) Constructs a new instance.

Uses of VectorSchemaRoot in org.apache.arrow.vector.ipc

Methods in org.apache.arrow.vector.ipc that return VectorSchemaRoot

Modifier and Type	Method and Description
VectorSchemaRoot	ArrowReader.getVectorSchemaRoot() Returns the vector schema root.
VectorSchemaRoot	JsonFileReader.read() Returns the next record batch from the file.

Methods in org.apache.arrow.vector.ipc with parameters of type VectorSchemaRoot

Modifier and Type	Method and Description
boolean	JsonFileReader.read(VectorSchemaRoot root) Reads the next record batch from the file into root.
void	JsonFileWriter.write(VectorSchemaRoot recordBatch) Writes the record batch to the JSON file.

Constructors in org.apache.arrow.vector.ipc with parameters of type VectorSchemaRoot

Constructor and Description
ArrowFileWriter(VectorSchemaRoot root, DictionaryProvider provider, WritableByteChannel out)
ArrowFileWriter(VectorSchemaRoot root, DictionaryProvider provider, WritableByteChannel out, IpcOption option)
ArrowFileWriter(VectorSchemaRoot root, DictionaryProvider provider, WritableByteChannel out, Map<String,String> metaData)
ArrowFileWriter(VectorSchemaRoot root, DictionaryProvider provider, WritableByteChannel out, Map<String,String> metaData, IpcOption option)
ArrowStreamWriter(VectorSchemaRoot root, DictionaryProvider provider, OutputStream out) Construct an ArrowStreamWriter with an optional DictionaryProvider for the OutputStream.
ArrowStreamWriter(VectorSchemaRoot root, DictionaryProvider provider, WritableByteChannel out) Construct an ArrowStreamWriter with an optional DictionaryProvider for the WritableByteChannel.
ArrowStreamWriter(VectorSchemaRoot root, DictionaryProvider provider, WritableByteChannel out, IpcOption option) Construct an ArrowStreamWriter with an optional DictionaryProvider for the WritableByteChannel.
ArrowWriter(VectorSchemaRoot root, DictionaryProvider provider, WritableByteChannel out)
ArrowWriter(VectorSchemaRoot root, DictionaryProvider provider, WritableByteChannel out, IpcOption option) Note: fields are not closed when the writer is closed.

Uses of VectorSchemaRoot in org.apache.arrow.vector.util

Methods in org.apache.arrow.vector.util with parameters of type VectorSchemaRoot

Modifier and Type	Method and Description
static void	VectorSchemaRootAppender.append(boolean checkSchema, VectorSchemaRoot targetRoot, VectorSchemaRoot... rootsToAppend) Appends a number of VectorSchemaRoots.
static void	VectorSchemaRootAppender.append(boolean checkSchema, VectorSchemaRoot targetRoot, VectorSchemaRoot... rootsToAppend) Appends a number of VectorSchemaRoots.
static void	VectorSchemaRootAppender.append(VectorSchemaRoot targetRoot, VectorSchemaRoot... rootsToAppend) Appends a number of VectorSchemaRoots.
static void	VectorSchemaRootAppender.append(VectorSchemaRoot targetRoot, VectorSchemaRoot... rootsToAppend) Appends a number of VectorSchemaRoots.
static void	Validator.compareVectorSchemaRoot(VectorSchemaRoot root1, VectorSchemaRoot root2) Validate two arrow vectorSchemaRoot are equal.
static void	ValueVectorUtility.ensureCapacity(VectorSchemaRoot root, int targetCapacity) Ensure capacity for BaseFixedWidthVector.
static void	ValueVectorUtility.preAllocate(VectorSchemaRoot root, int targetSize) Pre allocate memory for BaseFixedWidthVector.
static void	ValueVectorUtility.validate(VectorSchemaRoot root) Utility to validate vector schema root in O(1) time.
static void	ValueVectorUtility.validateFull(VectorSchemaRoot root) Utility to validate vector in O(n) time, where n is the value count.