Apache Avro 1.11.3 · org.apache.avro.generic.GenericData

Modifier and Type	Class and Description
public static class	GenericData.Array<T> Default implementation of an array.
public static class	GenericData.EnumSymbol Default implementation of `GenericEnumSymbol`.
public static class	GenericData.Fixed Default implementation of `GenericFixed`.
public static interface	GenericData.InstanceSupplier
public static class	GenericData.Record Default implementation of `GenericRecord`.
public static enum	GenericData.StringType Used to specify the Java type for a string schema.

Modifier and Type	Field and Description
private final ClassLoader	classLoader
private Map<String, Conversion<?>>	conversions
private Map<Class<?>, Map<String, Conversion<?>>>	conversionsByClass
private final ConcurrentMap<Schema.Field, Object>	defaultValueCache
public static final String	FAST_READER_PROP
private FastReaderBuilder	fastReaderBuilder
private boolean	fastReaderEnabled
private static final GenericData	INSTANCE
private static final Map<Class<?>, String>	PRIMITIVE_DATUM_TYPES
public static final String	STRING_PROP
protected static final String	STRING_TYPE_STRING
private static final Schema	STRINGS
private static final String	TOSTRING_CIRCULAR_REFERENCE_ERROR_TEXT

Access	Constructor and Description
public	GenericData() For subclasses.
public	GenericData(ClassLoader classLoader) For subclasses.

Method Summary

Modifier and Type	Method and Description
public void	addLogicalTypeConversion(Conversion<?> a logical type Conversion. conversion) Registers the given conversion to be used when reading and writing with this data model.
public int	compare(Object o1, Object o2, Schema s) Compare objects according to their schema.
protected int	compare(Object o1, Object o2, Schema s, boolean equals) Comparison implementation.
protected int	compareMaps(final Map<?, ?> m1, final Map<?, ?> m2)
public DatumReader<D>	createDatumReader(Schema schema) Returns a `DatumReader` for this kind of data.
public DatumReader<D>	createDatumReader(Schema writer, Schema reader) Returns a `DatumReader` for this kind of data.
public DatumWriter<D>	createDatumWriter(Schema schema) Returns a `DatumWriter` for this kind of data.
public Object	createEnum(String symbol, Schema schema) Called to create an enum value.
public Object	createFixed(Object old, Schema schema) Called to create an fixed value.
public Object	createFixed(Object old, byte[] bytes, Schema schema) Called to create an fixed value.
public Object	createString(Object value) Called to create an string value.
public <T> T	Returns: a deep copy of the given value. deepCopy(Schema the schema of the value to deep copy. schema, T the value to deep copy. value) Makes a deep copy of a value given its schema.
private Object	deepCopyRaw(Schema schema, Object value)
public static GenericData	get() Return the singleton instance.
protected Collection<E>	getArrayAsCollection(Object datum) Called to access an array as a collection.
public ClassLoader	getClassLoader() Return the class loader that's used (by subclasses).
public <T> Conversion<T>	Returns: the first registered conversion for the class, or null getConversionByClass(Class<T> a Class datumClass) Returns the first conversion found for the given class.
public <T> Conversion<T>	Returns: the conversion for the class and logical type, or null getConversionByClass(Class<T> a Class datumClass, LogicalType a LogicalType logicalType) Returns the conversion for the given class and logical type.
public <T> Conversion<T>	Returns: the conversion for the logical type, or null getConversionFor(LogicalType a logical type logicalType) Returns the Conversion for the given logical type.
public Collection<Conversion<?>>	getConversions()
public Object	Returns: the default value associated with the given field, or null if none is specified in the schema. getDefaultValue(Schema.Field the field whose default value should be retrieved. field) Gets the default value of the given field, if any.
protected Schema	getEnumSchema(Object enu) Called to obtain the schema of a enum.
public FastReaderBuilder	getFastReaderBuilder()
public Object	getField(Object record, String name, int position) Called by `GenericDatumReader#readRecord` to retrieve a record field value from a reused instance.
protected Object	getField(Object record, String name, int pos, Object state) Version of `getField` that has state.
protected Schema	getFixedSchema(Object fixed) Called to obtain the schema of a fixed.
public GenericData.InstanceSupplier	getNewRecordSupplier(Schema schema) create a supplier that allows to get new record instances for a given schema in an optimized way
protected Map<Class<?>, String>	getPrimitiveTypeCache() Called to obtain the primitive type cache.
protected Schema	getRecordSchema(Object record) Called to obtain the schema of a record.
protected Object	getRecordState(Object record, Schema schema) Produce state for repeated calls to `getField(Object, String, int, Object)` and `setField(Object, String, int, Object, Object)` on the same record.
protected String	getSchemaName(Object datum) Return the schema full name for a datum.
public int	hashCode(Object o, Schema s) Compute a hash code according to a schema, consistent with `compare(Object, Object, Schema)`.
protected int	hashCodeAdd(int hashCode, Object o, Schema s) Add the hash code for an object into an accumulated hash code.
public Schema	induce(Object datum) Create a schema given an example datum.
protected boolean	instanceOf(Schema schema, Object datum) Called by `resolveUnion(Schema, Object)`.
protected boolean	isArray(Object datum) Called by the default implementation of `instanceOf`.
protected boolean	isBoolean(Object datum) Called by the default implementation of `instanceOf`.
protected boolean	isBytes(Object datum) Called by the default implementation of `instanceOf`.
protected boolean	isDouble(Object datum) Called by the default implementation of `instanceOf`.
protected boolean	isEnum(Object datum) Called by the default implementation of `instanceOf`.
public boolean	isFastReaderEnabled()
protected boolean	isFixed(Object datum) Called by the default implementation of `instanceOf`.
protected boolean	isFloat(Object datum) Called by the default implementation of `instanceOf`.
protected boolean	isInteger(Object datum) Called by the default implementation of `instanceOf`.
protected boolean	isLong(Object datum) Called by the default implementation of `instanceOf`.
protected boolean	isMap(Object datum) Called by the default implementation of `instanceOf`.
private boolean	isNanOrInfinity(Object datum)
protected boolean	isRecord(Object datum) Called by the default implementation of `instanceOf`.
protected boolean	isString(Object datum) Called by the default implementation of `instanceOf`.
private boolean	isTemporal(Object datum)
private void	loadConversions() Use the Java 6 ServiceLoader to load conversions.
public Object	newArray(Object old, int size, Schema schema)
public Object	newMap(Object old, int size) Called to create new array instances.
public Object	newRecord(Object old, Schema schema) Called to create new record instances.
public int	resolveUnion(Schema union, Object datum) Return the index for a datum within a union.
public GenericData	setFastReaderEnabled(boolean flag)
public void	setField(Object record, String name, int position, Object value) Called by `GenericDatumReader#readRecord` to set a record fields value to a record instance.
protected void	setField(Object record, String name, int position, Object value, Object state) Version of `setField` that has state.
public static void	setStringType(Schema s, GenericData.StringType stringType) Set the Java type to be used when reading this schema.
public String	toString(Object datum) Renders a Java datum as JSON.
protected void	toString(Object datum, StringBuilder buffer, IdentityHashMap<Object, Object> seenObjects) Renders a Java datum as JSON.
public boolean	validate(Schema schema, Object datum) Returns true if a Java datum matches a schema.
private static void	writeEscapedString(CharSequence string, StringBuilder builder)

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

public Class GenericData

Nested and Inner Type Summary

Field Summary

Constructor Summary

Method Summary