Package org.apache.calcite.util

Provides utility classes.

See: Description

Interface Summary

Interface	Description
BasicDatetime	BasicDatetime is an interface for dates, times, or timestamps that can be assigned from a long value.
CalciteParserException	Tagging interface to allow a SqlParseException to be identified without adding a dependency on it from client-side code.
CalciteValidatorException	Tagging interface to allow a SqlValidatorException to be identified without adding a dependency on it from client-side code.
ClosableAllocation	ClosableAllocation represents an object which requires a call in order to release resources early rather than waiting for finalization.
ClosableAllocationOwner	ClosableAllocationOwner represents an object which can take ownership of ClosableAllocations and guarantee that they will be cleaned up correctly when its own closeAllocation() is called.
Compatible	Compatibility layer.
Glossary	A collection of terms.
Litmus	Callback to be called when a test for validity succeeds or fails.
PartiallyOrderedSet.Ordering<E>	Ordering relation.
ReflectiveVisitDispatcher<R extends ReflectiveVisitor,E>	Interface for looking up methods relating to reflective visitation.
ReflectiveVisitor	Object which can be a target for a reflective visitation (see ReflectUtil.invokeVisitor(ReflectiveVisitor, Object, Class, String).
ReflectUtil.MethodDispatcher<T>	Can invoke a method on an object of type E with return type T.

Class Summary

Class	Description
BarfingInvocationHandler	A class derived from BarfingInvocationHandler handles a method call by looking for a method in itself with identical parameters.
Benchmark	Helps to run benchmarks by running the same task repeatedly and averaging the running times.
Benchmark.Statistician	Collects statistics for a test that is run multiple times.
BitSets	Utility functions for BitSet.
BitString	String of bits.
Bug	Holder for a list of constants describing which bugs which have not been fixed.
CancelFlag	CancelFlag is used to post and check cancellation requests.
CastingList<E>	Converts a list whose members are automatically down-cast to a given type.
ChunkList<E>	Implementation of list similar to LinkedList, but stores elements in chunks of 32 elements.
Compatible.Factory	Creates the implementation of Compatible suitable for the current environment.
CompositeList<T>	Read-only list that is the concatenation of sub-lists.
CompositeMap<K,V>	Unmodifiable view onto multiple backing maps.
CompoundClosableAllocation	CompoundClosableAllocation represents a collection of ClosableAllocations which share a common lifecycle.
ConversionUtil	Utility functions for converting from one type to another
DelegatingInvocationHandler	A class derived from DelegatingInvocationHandler handles a method call by looking for a method in itself with identical parameters.
Filterator<E>	Filtered iterator class: an iterator that includes only elements that are instanceof a specified class.
Holder<E>	A mutable slot that can contain one object.
ImmutableBitSet	An immutable list of bits.
ImmutableBitSet.Builder	Builder.
ImmutableIntList	An immutable list of Integer values backed by an array of ints.
ImmutableNullableList<E>	An immutable list that may contain null values.
ImmutableNullableList.Builder<E>	A builder for creating immutable nullable list instances.
IntegerIntervalSet	A set of non-negative integers defined by a sequence of points, intervals, and exclusions.
IntList	Extension to ArrayList to help build an array of int values.
JsonBuilder	Builder for JSON documents (represented as List, Map, String, Boolean, Long).
NlsString	A string, optionally with character set and SqlCollation.
NumberUtil	Utility functions for working with numbers This class is JDK 1.4 compatible.
Pair<T1,T2>	Pair of objects.
PartiallyOrderedSet<E>	Partially-ordered set.
Permutation	Represents a mapping which reorders elements in an array.
ReflectUtil	Static utilities for Java reflection.
RhBase64	Encodes and decodes to and from Base64 notation.
RhBase64.InputStream	A RhBase64.InputStream will read data from another InputStream, given in the constructor, and encode/decode to/from Base64 notation on the fly.
RhBase64.OutputStream	A RhBase64.OutputStream will write data to another OutputStream, given in the constructor, and encode/decode to/from Base64 notation on the fly.
SaffronProperties	Provides an environment for debugging information, et cetera, used by saffron.
SerializableCharset	Serializable wrapper around a Charset.
Stacks	Utilities to make vanilla lists look like stacks.
StackWriter	A helper class for generating formatted text.
Static	Definitions of objects to be statically imported.
Template	String template.
UnmodifiableArrayList<E>	A view onto an array that cannot be modified by the client.
Util	Miscellaneous utility functions.
XmlOutput	Streaming XML output.
ZonelessDate	ZonelessDate is a date value without a time zone.
ZonelessDatetime	ZonelessDatetime is an abstract class for dates, times, or timestamps that contain a zoneless time value.
ZonelessTime	ZonelessTime is a time value without a time zone.
ZonelessTimestamp	ZonelessTimestamp is a timestamp value without a time zone.

Enum Summary

Enum	Description
BuiltInMethod	Built-in methods.

Exception Summary

Exception	Description
ControlFlowException	Exception intended to be used for control flow, as opposed to the usual use of exceptions which is to signal an error condition.
Util.FoundOne	Exception used to interrupt a tree walk of any kind.

Package org.apache.calcite.util Description

Provides utility classes.