Molecule0.22.5 < Back

Packages

package root
Documentation/API for the Molecule library - a meta DSL for the Datomic database.
Manual | scalamolecule.org | Github | Forum
Definition Classes
root

package molecule

Molecule library - a Scala meta-DSL for the Datomic database.

Molecule library - a Scala meta-DSL for the Datomic database.

See api package for various api imports to start using Molecule.

Sub-packages

api		Molecule API.
ast		Internal Molecule ASTs.
boilerplate		Internal interfaces for auto-generated DSL boilerplate code.
composition		Builder methods to compose molecules.
exceptions		Exceptions thrown by Molecule.
expression		Attribute expressions and operations.
facade		Molecule facades to Datomic.
factory		Implicit macro methods `m` to instantiate molecules from custom DSL molecule constructs.
input		Input molecules awaiting input.
macros		Internal macros generating molecule code from custom DSL molecule constructs.
generic		Interfaces to generic information about datoms and Datomic database.
ops		Internal operational helpers for transforming DSL to molecule.
schema		Schema definition DSL.
transform		Internal transformers from DSL to Model/Query/Transaction.
util		Internal Java database functions for Datomic.

Definition Classes: root

package api
Definition Classes
molecule
package exception
Definition Classes
api
package get
Synchronous getter methods to retrieve data from Datomic.
Synchronous getter methods to retrieve data from Datomic.
The Datomic On-Prem(ises) server model provides a Peer that returns data synchronously. The Peer which lives in application memory caches data aggressively and for data fitting in memory latency can be extremely low and queries return very fast. And even when access to disk is needed, clever branching is used. Memcached is also an option.
The Datomic Cloud model data returns data asynchronously. If Datomic creates a Java API for the Cloud model, Molecule could relatively easy adapt to this model too. In the meanwhile, Future-wrapped methods in this package can be used.
Molecule has 5 groups of synchronous getters, each returning data in various formats:
- GetArray - fastest retrieved typed data set. Can be traversed with a fast while loop
- GetIterable - for lazily traversing row by row
- GetJson - data formatted as Json string
- GetList - default getter returning Lists of tuples. Convenient typed data, suitable for smaller data sets
- GetRaw - fastest retrieved raw un-typed data from Datomic
Getters in each of the 5 groups come with 5 time-dependent variations:
- get [current data]
- getAsOf
- getSince
- getWith
- getHistory
Each time variation has various overloads taking different parameters (see each group for more info).
Definition Classes
api
See also
equivalent asynchronous getters in the getAsync package.
package getAsync
Asynchronous getter methods to retrieve data from Datomic.
Asynchronous getter methods to retrieve data from Datomic.
For convenience, all synchronous getter methods from the get package are here wrapped in Futures.
The Datomic On-Prem(ises) server model provides a Peer that returns data synchronously. The Peer which lives in application memory caches data aggressively and for data fitting in memory latency can be extremely low and queries return very fast. And even when access to disk is needed, clever branching is used. Memcached is also an option.
The Datomic Cloud model data returns data asynchronously. If Datomic creates a Java API for the Cloud model, Molecule could relatively easy adapt to this model too. In the meanwhile, Future-wrapped methods in this package can be used.
Molecule has 5 groups of asynchronous getters, each returning Futures of data in various formats:
- GetAsyncArray - fastest retrieved typed data set. Can be traversed with a fast while loop
- GetAsyncIterable - for lazily traversing row by row
- GetAsyncJson - data formatted as Json string
- GetAsyncList - default getter returning Lists of tuples. Convenient typed data, suitable for smaller data sets
- GetAsyncRaw - fastest retrieved raw un-typed data from Datomic
Getters in each of the 5 groups come with 5 time-dependent variations:
- getAsync [current data]
- getAsyncAsOf
- getAsyncSince
- getAsyncWith
- getAsyncHistory
Each time variation has various overloads taking different parameters (see each group for more info).
Definition Classes
api
See also
equivalent synchronous getters in the get package.
Entity
EntityOps
Molecule
OptionalMapOps
ShowDebug
TxMethods
core
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TxMethods

Companion trait TxMethods

object TxMethods extends Helpers with BridgeDatomicFuture

Source: TxMethods.scala

Linear Supertypes

BridgeDatomicFuture, Helpers, DateHandling, RegexMatching, AnyRef, Any

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TxMethods
BridgeDatomicFuture
Helpers
DateHandling
RegexMatching
AnyRef
Any

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Type Members

implicit class Regex extends AnyRef
Definition Classes
RegexMatching

Value Members

final def !=(arg0: Any): Boolean
Definition Classes
AnyRef → Any
final def ##: Int
Definition Classes
AnyRef → Any
final def ==(arg0: Any): Boolean
Definition Classes
AnyRef → Any
final def asInstanceOf[T0]: T0
Definition Classes
Any
def buildTxFnInstall(txFn: String, args: Seq[Any]): Map[_, _]
def cast(value: Any): String
Attributes
protected
Definition Classes
Helpers
def clean(attr: String): String
Definition Classes
Helpers
def clone(): AnyRef
Attributes
protected[lang]
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.CloneNotSupportedException]) @native()
def date2datomicStr(date: Date, zoneOffset: ZoneOffset = localZoneOffset): String
Definition Classes
DateHandling
def date2str(date: Date, zoneOffset: ZoneOffset = localZoneOffset): String
Definition Classes
DateHandling
def daylight(ms: Long): Int
Definition Classes
DateHandling
final def eq(arg0: AnyRef): Boolean
Definition Classes
AnyRef
def equals(arg0: AnyRef): Boolean
Definition Classes
AnyRef → Any
def escStr(s: String): String
Definition Classes
Helpers
def excMissingMoleculeClass(e: Throwable): String
def excMissingMoleculeMethod(e: Throwable): String
def excMissingScalaJar(e: Throwable): String
def expandDateStr(dateStr: String): String
Definition Classes
DateHandling
final def f(a: Any): Any
Attributes
protected
Definition Classes
Helpers
def finalize(): Unit
Attributes
protected[lang]
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.Throwable])
final def getClass(): Class[_ <: AnyRef]
Definition Classes
AnyRef → Any
Annotations
@native()
def hashCode(): Int
Definition Classes
AnyRef → Any
Annotations
@native()
final def isInstanceOf[T0]: Boolean
Definition Classes
Any
lazy val localOffset: String
Definition Classes
DateHandling
lazy val localZoneOffset: ZoneOffset
Definition Classes
DateHandling
final def ne(arg0: AnyRef): Boolean
Definition Classes
AnyRef
final def notify(): Unit
Definition Classes
AnyRef
Annotations
@native()
final def notifyAll(): Unit
Definition Classes
AnyRef
Annotations
@native()
final def o(opt: Option[Any]): String
Attributes
protected
Definition Classes
Helpers
final def os(opt: Option[Set[_]]): String
Attributes
protected
Definition Classes
Helpers
final def seq[T](values: Seq[T]): String
Attributes
protected
Definition Classes
Helpers
def str2date(s: String, zoneOffset: ZoneOffset = localZoneOffset): Date
Definition Classes
DateHandling
def str2zdt(s: String, zoneOffset: ZoneOffset = localZoneOffset): ZonedDateTime
Definition Classes
DateHandling
final def synchronized[T0](arg0: => T0): T0
Definition Classes
AnyRef
final def time(n: Int, prev: Int = 0): Unit
Attributes
protected
Definition Classes
Helpers
def toString(): String
Definition Classes
AnyRef → Any
def truncateDateStr(dateStr: String): String
Definition Classes
DateHandling
def tryTransactTxFn(body: => TxReport): TxReport
final def tupleToSeq(arg: Any): Seq[Any]
Attributes
protected
Definition Classes
Helpers
def txFnException(e: Throwable): String
def unescStr(s: String): String
Definition Classes
Helpers
final def wait(): Unit
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.InterruptedException])
final def wait(arg0: Long, arg1: Int): Unit
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.InterruptedException])
final def wait(arg0: Long): Unit
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.InterruptedException]) @native()
lazy val zone: ZoneId
Definition Classes
DateHandling
object mkDate
Attributes
protected
Definition Classes
Helpers

Inherited from BridgeDatomicFuture

Inherited from Helpers

Inherited from DateHandling

Inherited from RegexMatching

Inherited from AnyRef

Inherited from Any

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