forked from apache/spark
-
Notifications
You must be signed in to change notification settings - Fork 1
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
34 changed files
with
1,135 additions
and
1,007 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
210 changes: 210 additions & 0 deletions
210
sql/core/src/main/scala/org/apache/spark/sql/Column.scala
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,210 @@ | ||
| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one or more | ||
| * contributor license agreements. See the NOTICE file distributed with | ||
| * this work for additional information regarding copyright ownership. | ||
| * The ASF licenses this file to You under the Apache License, Version 2.0 | ||
| * (the "License"); you may not use this file except in compliance with | ||
| * the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| package org.apache.spark.sql | ||
|
|
||
| import org.apache.spark.sql.catalyst.analysis | ||
| import org.apache.spark.sql.catalyst.analysis.Star | ||
|
|
||
| import scala.language.implicitConversions | ||
|
|
||
| import org.apache.spark.sql.catalyst.expressions._ | ||
| import org.apache.spark.sql.catalyst.expressions.{Literal => LiteralExpr} | ||
| import org.apache.spark.sql.catalyst.plans.logical.{Project, LogicalPlan} | ||
| import org.apache.spark.sql.types._ | ||
|
|
||
|
|
||
| object Literal { | ||
| def apply(literal: Boolean): Column = new Column(LiteralExpr(literal)) | ||
| def apply(literal: Byte): Column = new Column(LiteralExpr(literal)) | ||
| def apply(literal: Short): Column = new Column(LiteralExpr(literal)) | ||
| def apply(literal: Int): Column = new Column(LiteralExpr(literal)) | ||
| def apply(literal: Long): Column = new Column(LiteralExpr(literal)) | ||
| def apply(literal: Float): Column = new Column(LiteralExpr(literal)) | ||
| def apply(literal: Double): Column = new Column(LiteralExpr(literal)) | ||
| def apply(literal: String): Column = new Column(LiteralExpr(literal)) | ||
| def apply(literal: BigDecimal): Column = new Column(LiteralExpr(literal)) | ||
| def apply(literal: java.math.BigDecimal): Column = new Column(LiteralExpr(literal)) | ||
| def apply(literal: java.sql.Timestamp): Column = new Column(LiteralExpr(literal)) | ||
| def apply(literal: java.sql.Date): Column = new Column(LiteralExpr(literal)) | ||
| def apply(literal: Array[Byte]): Column = new Column(LiteralExpr(literal)) | ||
| def apply(literal: Null): Column = new Column(LiteralExpr(null)) | ||
| } | ||
|
|
||
|
|
||
| object Column { | ||
| def unapply(col: Column): Option[Expression] = Some(col.expr) | ||
| } | ||
|
|
||
|
|
||
| class Column( | ||
| sqlContext: Option[SQLContext], | ||
| plan: Option[LogicalPlan], | ||
| val expr: Expression) | ||
| extends DataFrame(sqlContext, plan) with ExpressionApi[Column] { | ||
|
|
||
| def this(expr: Expression) = this(None, None, expr) | ||
|
|
||
| def this(name: String) = this(name match { | ||
| case "*" => Star(None) | ||
| case _ if name.endsWith(".*") => Star(Some(name.substring(0, name.length - 2))) | ||
| case _ => analysis.UnresolvedAttribute(name) | ||
| }) | ||
|
|
||
| private[this] implicit def toColumn(expr: Expression): Column = { | ||
| val projectedPlan = plan.map { p => | ||
| Project(Seq(expr match { | ||
| case named: NamedExpression => named | ||
| case unnamed: Expression => Alias(unnamed, "col")() | ||
| }), p) | ||
| } | ||
| new Column(sqlContext, projectedPlan, expr) | ||
| } | ||
|
|
||
| override def unary_- : Column = UnaryMinus(expr) | ||
|
|
||
| override def ||(other: Column): Column = Or(expr, other.expr) | ||
|
|
||
| override def unary_~ : Column = BitwiseNot(expr) | ||
|
|
||
| override def !==(other: Column): Column = Not(EqualTo(expr, other.expr)) | ||
|
|
||
| override def >(other: Column): Column = GreaterThan(expr, other.expr) | ||
|
|
||
| override def unary_! : Column = Not(expr) | ||
|
|
||
| override def &(other: Column): Column = BitwiseAnd(expr, other.expr) | ||
|
|
||
| override def /(other: Column): Column = Divide(expr, other.expr) | ||
|
|
||
| override def &&(other: Column): Column = And(expr, other.expr) | ||
|
|
||
| override def |(other: Column): Column = BitwiseOr(expr, other.expr) | ||
|
|
||
| override def ^(other: Column): Column = BitwiseXor(expr, other.expr) | ||
|
|
||
| override def <=>(other: Column): Column = EqualNullSafe(expr, other.expr) | ||
|
|
||
| override def ===(other: Column): Column = EqualTo(expr, other.expr) | ||
|
|
||
| override def equalTo(other: Column): Column = this === other | ||
|
|
||
| override def +(other: Column): Column = Add(expr, other.expr) | ||
|
|
||
| override def rlike(other: Column): Column = RLike(expr, other.expr) | ||
|
|
||
| override def %(other: Column): Column = Remainder(expr, other.expr) | ||
|
|
||
| override def in(list: Column*): Column = In(expr, list.map(_.expr)) | ||
|
|
||
| override def getItem(ordinal: Int): Column = GetItem(expr, LiteralExpr(ordinal)) | ||
|
|
||
| override def getItem(ordinal: Column): Column = GetItem(expr, ordinal.expr) | ||
|
|
||
| override def <=(other: Column): Column = LessThanOrEqual(expr, other.expr) | ||
|
|
||
| override def like(other: Column): Column = Like(expr, other.expr) | ||
|
|
||
| override def getField(fieldName: String): Column = GetField(expr, fieldName) | ||
|
|
||
| override def isNotNull: Column = IsNotNull(expr) | ||
|
|
||
| override def substr(startPos: Column, len: Column): Column = | ||
| Substring(expr, startPos.expr, len.expr) | ||
|
|
||
| override def <(other: Column): Column = LessThan(expr, other.expr) | ||
|
|
||
| override def isNull: Column = IsNull(expr) | ||
|
|
||
| override def contains(other: Column): Column = Contains(expr, other.expr) | ||
|
|
||
| override def -(other: Column): Column = Subtract(expr, other.expr) | ||
|
|
||
| override def desc: Column = SortOrder(expr, Descending) | ||
|
|
||
| override def >=(other: Column): Column = GreaterThanOrEqual(expr, other.expr) | ||
|
|
||
| override def asc: Column = SortOrder(expr, Ascending) | ||
|
|
||
| override def endsWith(other: Column): Column = EndsWith(expr, other.expr) | ||
|
|
||
| override def *(other: Column): Column = Multiply(expr, other.expr) | ||
|
|
||
| override def startsWith(other: Column): Column = StartsWith(expr, other.expr) | ||
|
|
||
| override def as(alias: String): Column = Alias(expr, alias)() | ||
|
|
||
| override def cast(to: DataType): Column = Cast(expr, to) | ||
| } | ||
|
|
||
|
|
||
| class ColumnName(name: String) extends Column(name) { | ||
|
|
||
| /** Creates a new AttributeReference of type boolean */ | ||
| def boolean: StructField = StructField(name, BooleanType) | ||
|
|
||
| /** Creates a new AttributeReference of type byte */ | ||
| def byte: StructField = StructField(name, ByteType) | ||
|
|
||
| /** Creates a new AttributeReference of type short */ | ||
| def short: StructField = StructField(name, ShortType) | ||
|
|
||
| /** Creates a new AttributeReference of type int */ | ||
| def int: StructField = StructField(name, IntegerType) | ||
|
|
||
| /** Creates a new AttributeReference of type long */ | ||
| def long: StructField = StructField(name, LongType) | ||
|
|
||
| /** Creates a new AttributeReference of type float */ | ||
| def float: StructField = StructField(name, FloatType) | ||
|
|
||
| /** Creates a new AttributeReference of type double */ | ||
| def double: StructField = StructField(name, DoubleType) | ||
|
|
||
| /** Creates a new AttributeReference of type string */ | ||
| def string: StructField = StructField(name, StringType) | ||
|
|
||
| /** Creates a new AttributeReference of type date */ | ||
| def date: StructField = StructField(name, DateType) | ||
|
|
||
| /** Creates a new AttributeReference of type decimal */ | ||
| def decimal: StructField = StructField(name, DecimalType.Unlimited) | ||
|
|
||
| /** Creates a new AttributeReference of type decimal */ | ||
| def decimal(precision: Int, scale: Int): StructField = | ||
| StructField(name, DecimalType(precision, scale)) | ||
|
|
||
| /** Creates a new AttributeReference of type timestamp */ | ||
| def timestamp: StructField = StructField(name, TimestampType) | ||
|
|
||
| /** Creates a new AttributeReference of type binary */ | ||
| def binary: StructField = StructField(name, BinaryType) | ||
|
|
||
| /** Creates a new AttributeReference of type array */ | ||
| def array(dataType: DataType): StructField = StructField(name, ArrayType(dataType)) | ||
|
|
||
| /** Creates a new AttributeReference of type map */ | ||
| def map(keyType: DataType, valueType: DataType): StructField = | ||
| map(MapType(keyType, valueType)) | ||
|
|
||
| def map(mapType: MapType): StructField = StructField(name, mapType) | ||
|
|
||
| /** Creates a new AttributeReference of type struct */ | ||
| def struct(fields: StructField*): StructField = struct(StructType(fields)) | ||
|
|
||
| def struct(structType: StructType): StructField = StructField(name, structType) | ||
| } |
Oops, something went wrong.