Class ParameterizedQuery

All Implemented Interfaces:
NamedWriteable, Writeable, Resolvable

public class ParameterizedQuery extends LeafPlan
Logical plan node representing a parameterized lookup query source. This replaces EsRelation in the lookup node's logical plan, representing a source that receives input pages (match keys) from the exchange and generates parameterized queries against the lookup index.
  • Field Details

  • Constructor Details

  • Method Details

    • output

      public List<Attribute> output()
      Description copied from class: QueryPlan
      The ordered list of attributes (i.e. columns) this plan produces when executed. Must be called only on resolved plans, otherwise may throw an exception or return wrong results.
      Specified by:
      output in class QueryPlan<LogicalPlan>
    • matchFields

      public List<MatchConfig> matchFields()
    • joinOnConditions

      @Nullable public Expression joinOnConditions()
    • emptyResult

      public boolean emptyResult()
    • writeTo

      public void writeTo(StreamOutput out) throws IOException
      Throws:
      IOException
    • getWriteableName

      public String getWriteableName()
    • expressionsResolved

      public boolean expressionsResolved()
      Specified by:
      expressionsResolved in class LogicalPlan
    • info

      protected NodeInfo<ParameterizedQuery> info()
      Description copied from class: Node
      Normally, you want to use one of the static create methods to implement this.

      For QueryPlans, it is very important that the properties contain all of the expressions and references relevant to this node, and that all the properties are used in the provided constructor; otherwise query plan transformations like QueryPlan#transformExpressionsOnly(Function) will not have an effect.

      Specified by:
      info in class Node<LogicalPlan>
    • hashCode

      public int hashCode()
      Specified by:
      hashCode in class LogicalPlan
    • equals

      public boolean equals(Object obj)
      Specified by:
      equals in class LogicalPlan