Package com.orientechnologies.orient.core.sql.operator

Class OQueryOperatorMajor

java.lang.Object
com.orientechnologies.orient.core.sql.operator.OQueryOperator
com.orientechnologies.orient.core.sql.operator.OQueryOperatorEquality
com.orientechnologies.orient.core.sql.operator.OQueryOperatorEqualityNotNulls
com.orientechnologies.orient.core.sql.operator.OQueryOperatorMajor
public class OQueryOperatorMajor extends OQueryOperatorEqualityNotNulls
MAJOR operator.
Author:
Luca Garulli (l.garulli--(at)--orientdb.com)

  • Constructor Details

    • OQueryOperatorMajor

      public OQueryOperatorMajor()

  • Method Details

    • evaluateExpression

      protected boolean evaluateExpression(OIdentifiable iRecord, OSQLFilterCondition iCondition, Object iLeft, Object iRight, OCommandContext iContext)
      Specified by:
      evaluateExpression in class OQueryOperatorEquality

    • getIndexReuseType

      public OIndexReuseType getIndexReuseType(Object iLeft, Object iRight)
      Description copied from class: OQueryOperator
      Returns hint how index can be used to calculate result of operator execution.
      Specified by:
      getIndexReuseType in class OQueryOperator
      Parameters:
      iLeft - Value of left query parameter.
      iRight - Value of right query parameter.
      Returns:
      Hint how index can be used to calculate result of operator execution.

    • executeIndexQuery

      public Stream<ORawPair<Object,ORID>> executeIndexQuery(OCommandContext iContext, OIndex index, List<Object> keyParams, boolean ascSortOrder)
      Description copied from class: OQueryOperator
      Performs index query and returns index stream which presents subset of index data which corresponds to result of execution of given operator.

      Query that should be executed can be presented like: [[property0 = keyParam0] and [property1 = keyParam1] and] propertyN operator keyParamN.

      It is supped that index which passed in as parameter is used to index properties listed above and responsibility of given method execute query using given parameters.

      Multiple parameters are passed in to implement composite indexes support.

      Overrides:
      executeIndexQuery in class OQueryOperator
      Parameters:
      iContext -
      index - Instance of index that will be used to calculate result of operator execution.
      keyParams - Parameters of query is used to calculate query result.
      ascSortOrder - Data returned by cursors should be sorted in ascending or descending order.
      Returns:
      Cursor instance if index can be used to evaluate result of execution of given operator and null otherwise.

    • getBeginRidRange

      public ORID getBeginRidRange(Object iLeft, Object iRight)
      Specified by:
      getBeginRidRange in class OQueryOperator

    • getEndRidRange

      public ORID getEndRidRange(Object iLeft, Object iRight)
      Specified by:
      getEndRidRange in class OQueryOperator

    • evaluate

      public boolean evaluate(OBinaryField iFirstField, OBinaryField iSecondField, OCommandContext iContext, ODocumentSerializer serializer)
      Overrides:
      evaluate in class OQueryOperatorEquality

    • isSupportingBinaryEvaluate

      public boolean isSupportingBinaryEvaluate()
      Overrides:
      isSupportingBinaryEvaluate in class OQueryOperator