Package | Description |
---|---|
org.apache.arrow.vector | |
org.apache.arrow.vector.ipc | |
org.apache.arrow.vector.ipc.message | |
org.apache.arrow.vector.types.pojo | |
org.apache.arrow.vector.util |
Modifier and Type | Method and Description |
---|---|
Schema |
VectorSchemaRoot.getSchema() |
Modifier and Type | Method and Description |
---|---|
static VectorSchemaRoot |
VectorSchemaRoot.create(Schema schema,
BufferAllocator allocator)
Creates a new set of empty vectors corresponding to the given schema.
|
Constructor and Description |
---|
VectorSchemaRoot(Schema schema,
List<FieldVector> fieldVectors,
int rowCount)
Constructs a new instance.
|
Modifier and Type | Field and Description |
---|---|
protected Schema |
ArrowWriter.schema |
Modifier and Type | Method and Description |
---|---|
protected Schema |
ArrowFileReader.readSchema() |
protected abstract Schema |
ArrowReader.readSchema()
Read the Schema from the source, will be invoked at the beginning the initialization.
|
protected Schema |
ArrowStreamReader.readSchema()
Reads the schema message from the beginning of the stream.
|
Schema |
JsonFileReader.start()
Reads the beginning (schema section) of the json file and returns it.
|
Modifier and Type | Method and Description |
---|---|
void |
JsonFileWriter.start(Schema schema,
DictionaryProvider provider)
Writes out the "header" of the file including the schema and any dictionaries required.
|
Modifier and Type | Method and Description |
---|---|
static Schema |
MessageSerializer.deserializeSchema(Message schemaMessage)
Deserializes an Arrow Schema object from a schema message.
|
static Schema |
MessageSerializer.deserializeSchema(ReadChannel in)
Deserializes an Arrow Schema read from the input channel.
|
Schema |
ArrowFooter.getSchema() |
Modifier and Type | Method and Description |
---|---|
static long |
MessageSerializer.serialize(WriteChannel out,
Schema schema)
Serialize a schema object.
|
Constructor and Description |
---|
ArrowFooter(Schema schema,
List<ArrowBlock> dictionaries,
List<ArrowBlock> recordBatches)
Constructs a new instance.
|
Modifier and Type | Method and Description |
---|---|
static Schema |
Schema.convertSchema(Schema schema)
Converts a flatbuffer schema to its POJO representation.
|
static Schema |
Schema.deserialize(ByteBuffer buffer) |
static Schema |
Schema.fromJSON(String json) |
Modifier and Type | Method and Description |
---|---|
static void |
Validator.compareSchemas(Schema schema1,
Schema schema2)
Validate two arrow schemas are equal.
|
Copyright © 2019 The Apache Software Foundation. All rights reserved.