class VariantGet extends ExpressionWithToString
A DSv2 connector expression that extracts a value from a variant column. It reads the value at
the JSON path from the variant child and casts it to targetType. This is
the connector-facing form of the variant_get / try_variant_get SQL functions:
#failOnError() selects between them (throw vs. return null on a cast failure), and
#timeZoneId() binds the time zone used for timestamp casts. V2ExpressionBuilder
produces it so data sources can push variant extractions down (for example into filters).
- Annotations
- @Evolving()
- Source
- VariantGet.java
- Since
4.3.0
- Alphabetic
- By Inheritance
- VariantGet
- ExpressionWithToString
- Serializable
- Expression
- AnyRef
- Any
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- Public
- Protected
Instance Constructors
- new VariantGet(child: Expression, path: String, targetType: DataType, failOnError: Boolean, timeZoneId: String)
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 child(): Expression
- def children(): Array[Expression]
Returns an array of the children of this node.
Returns an array of the children of this node. Children should not change.
- Definition Classes
- VariantGet → Expression
- Annotations
- @Override()
- def clone(): AnyRef
- Attributes
- protected[lang]
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.CloneNotSupportedException]) @IntrinsicCandidate() @native()
- def describe(): String
Format the expression as a human readable SQL-like string.
Format the expression as a human readable SQL-like string.
- Definition Classes
- Expression
- final def eq(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
- def equals(o: AnyRef): Boolean
- Definition Classes
- VariantGet → AnyRef → Any
- Annotations
- @Override()
- def failOnError(): Boolean
- final def getClass(): Class[_ <: AnyRef]
- Definition Classes
- AnyRef → Any
- Annotations
- @IntrinsicCandidate() @native()
- def hashCode(): Int
- Definition Classes
- VariantGet → AnyRef → Any
- Annotations
- @Override()
- final def isInstanceOf[T0]: Boolean
- Definition Classes
- Any
- final def ne(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
- final def notify(): Unit
- Definition Classes
- AnyRef
- Annotations
- @IntrinsicCandidate() @native()
- final def notifyAll(): Unit
- Definition Classes
- AnyRef
- Annotations
- @IntrinsicCandidate() @native()
- def path(): String
- def references(): Array[NamedReference]
List of fields or columns that are referenced by this expression.
List of fields or columns that are referenced by this expression.
- Definition Classes
- Expression
- final def synchronized[T0](arg0: => T0): T0
- Definition Classes
- AnyRef
- def targetType(): DataType
- def timeZoneId(): String
- def toString(): String
- Definition Classes
- ExpressionWithToString → AnyRef → Any
- 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()
- final def wait(): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException])
Deprecated Value Members
- def finalize(): Unit
- Attributes
- protected[lang]
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.Throwable]) @Deprecated
- Deprecated
(Since version 9)