Package org.opensaml.storage.impl.memcached

Class MemcachedStorageCapabilities

java.lang.Object
org.opensaml.storage.impl.memcached.MemcachedStorageCapabilities
All Implemented Interfaces:
StorageCapabilities
public class MemcachedStorageCapabilities extends Object implements StorageCapabilities
Provides a description of memcached capabilities. Note that only value size is configurable since memcached supports increasing the maximum slab size via the -I flag. MemcachedStorageService supports arbitrarily large context names and keys by hashing values longer than 250 bytes, which is the maximum size allowed.

  • Field Details

    • defaultMaxValue

      private static long defaultMaxValue
      Memcached supports 1M slabs (i.e. values) by default and issues warning on increase.

    • valueSize

      @Positive private final long valueSize
      Maximum size of memcached values.

  • Constructor Details

    • MemcachedStorageCapabilities

      public MemcachedStorageCapabilities()
      Constructor.

    • MemcachedStorageCapabilities

      public MemcachedStorageCapabilities(@Positive long maxValueSize)
      Constructor.
      Parameters:
      maxValueSize - maximum value size

  • Method Details

    • getContextSize

      public int getContextSize()
      Gets max size of context labels in characters.
      Specified by:
      getContextSize in interface StorageCapabilities
      Returns:
      max size of context labels in characters

    • getKeySize

      public int getKeySize()
      Gets max size of keys in characters.
      Specified by:
      getKeySize in interface StorageCapabilities
      Returns:
      max size of keys in characters

    • getValueSize

      public long getValueSize()
      Gets max size of values in characters.
      Specified by:
      getValueSize in interface StorageCapabilities
      Returns:
      max size of values in characters

    • isServerSide

      public boolean isServerSide()
      Returns true iff the storage implementation manages data independent of the client.
      Specified by:
      isServerSide in interface StorageCapabilities
      Returns:
      true iff the storage implementation manages data independent of the client

    • isClustered

      public boolean isClustered()
      Returns true iff the storage implementation manages data independent of a single server node.
      Specified by:
      isClustered in interface StorageCapabilities
      Returns:
      true iff the storage implementation manages data independent of a single server node