Package org.apache.shardingsphere.sql.parser.sql.common.util

Class SafeNumberOperationUtils

  • public final class SafeNumberOperationUtils
extends Object
    Safe number operation utility class.

    • Constructor Detail

      • SafeNumberOperationUtils

        public SafeNumberOperationUtils()

    • Method Detail

      • safeIntersection

        public static com.google.common.collect.Range<Comparable<?>> safeIntersection​(com.google.common.collect.Range<Comparable<?>> range,
                                                                              com.google.common.collect.Range<Comparable<?>> connectedRange)
        Execute range intersection method by safe mode.
        Parameters:
        range - range
        connectedRange - connected range
        Returns:
        the intersection result of two ranges

      • safeClosed

        public static com.google.common.collect.Range<Comparable<?>> safeClosed​(Comparable<?> lowerEndpoint,
                                                                        Comparable<?> upperEndpoint)
        Execute range closed method by safe mode.
        Parameters:
        lowerEndpoint - lower endpoint
        upperEndpoint - upper endpoint
        Returns:
        new range

      • safeContains

        public static boolean safeContains​(com.google.common.collect.Range<Comparable<?>> range,
                                   Comparable<?> endpoint)
        Execute range contains method by safe mode.
        Parameters:
        range - range
        endpoint - endpoint
        Returns:
        whether the endpoint is included in the range

      • safeRangeEquals

        public static boolean safeRangeEquals​(com.google.common.collect.Range<Comparable<?>> sourceRange,
                                      com.google.common.collect.Range<Comparable<?>> targetRange)
        Execute range equals method by safe mode.
        Parameters:
        sourceRange - source range
        targetRange - target range
        Returns:
        whether the source range and target range are same

      • safeCollectionEquals

        public static boolean safeCollectionEquals​(Collection<Comparable<?>> sources,
                                           Collection<Comparable<?>> targets)
        Execute collection equals method by safe mode.
        Parameters:
        sources - source collection
        targets - target collection
        Returns:
        whether the element in source collection and target collection are all same