Package org.springframework.data.mongodb.core.aggregation

Class AggregationOptions

java.lang.Object
org.springframework.data.mongodb.core.aggregation.AggregationOptions
All Implemented Interfaces:
ReadConcernAware, ReadPreferenceAware
public class AggregationOptions extends Object implements ReadConcernAware, ReadPreferenceAware
Holds a set of configurable aggregation options that can be used within an aggregation pipeline. A list of support aggregation options can be found in the MongoDB reference documentation.
Since:
1.6
Author:
Thomas Darimont, Oliver Gierke, Christoph Strobl, Mark Paluch, Yadhukrishna S Pai, Soumya Prakash Behera
See Also:

  • Constructor Details

    • AggregationOptions

      public AggregationOptions(boolean allowDiskUse, boolean explain, @Nullable org.bson.Document cursor)
      Creates a new AggregationOptions.
      Parameters:
      allowDiskUse - whether to off-load intensive sort-operations to disk.
      explain - whether to get the execution plan for the aggregation instead of the actual results.
      cursor - can be null, used to pass additional options to the aggregation.

    • AggregationOptions

      public AggregationOptions(boolean allowDiskUse, boolean explain, @Nullable org.bson.Document cursor, @Nullable Collation collation)
      Creates a new AggregationOptions.
      Parameters:
      allowDiskUse - whether to off-load intensive sort-operations to disk.
      explain - whether to get the execution plan for the aggregation instead of the actual results.
      cursor - can be null, used to pass additional options (such as batchSize) to the aggregation.
      collation - collation for string comparison. Can be null.
      Since:
      2.0

    • AggregationOptions

      public AggregationOptions(boolean allowDiskUse, boolean explain, @Nullable org.bson.Document cursor, @Nullable Collation collation, @Nullable String comment)
      Creates a new AggregationOptions.
      Parameters:
      allowDiskUse - whether to off-load intensive sort-operations to disk.
      explain - whether to get the execution plan for the aggregation instead of the actual results.
      cursor - can be null, used to pass additional options (such as batchSize) to the aggregation.
      collation - collation for string comparison. Can be null.
      comment - execution comment. Can be null.
      Since:
      2.2

    • AggregationOptions

      public AggregationOptions(boolean allowDiskUse, boolean explain, int cursorBatchSize)
      Creates a new AggregationOptions.
      Parameters:
      allowDiskUse - whether to off-load intensive sort-operations to disk.
      explain - whether to get the execution plan for the aggregation instead of the actual results.
      cursorBatchSize - initial cursor batch size.
      Since:
      2.0

  • Method Details

    • fromDocument

      public static AggregationOptions fromDocument(org.bson.Document document)
      Creates new AggregationOptions given Document containing aggregation options.
      Parameters:
      document - must not be null.
      Returns:
      the AggregationOptions.
      Since:
      2.0

    • builder

      public static AggregationOptions.Builder builder()
      Obtain a new AggregationOptions.Builder for constructing AggregationOptions.
      Returns:
      never null.
      Since:
      2.0

    • isAllowDiskUse

      public boolean isAllowDiskUse()
      Enables writing to temporary files. When set to true, aggregation stages can write data to the _tmp subdirectory in the dbPath directory.
      Returns:
      true if enabled.

    • isExplain

      public boolean isExplain()
      Specifies to return the information on the processing of the pipeline.
      Returns:
      true if enabled.

    • getCursorBatchSize

      @Nullable public Integer getCursorBatchSize()
      The initial cursor batch size, if available, otherwise null.
      Returns:
      the batch size or null.
      Since:
      2.0

    • getCursor

      public Optional<org.bson.Document> getCursor()
      Specify a document that contains options that control the creation of the cursor object.
      Returns:
      never null.

    • getCollation

      public Optional<Collation> getCollation()
      Get collation settings for string comparison.
      Returns:
      never null.
      Since:
      2.0

    • getComment

      public Optional<String> getComment()
      Get the comment for the aggregation.
      Returns:
      never null.
      Since:
      2.2

    • getHint

      public Optional<org.bson.Document> getHint()
      Deprecated.
      since 4.1, use getHintObject() instead.
      Get the hint used to fulfill the aggregation.
      Returns:
      never null.
      Since:
      3.1

    • getHintObject

      public Optional<Object> getHintObject()
      Get the hint used to fulfill the aggregation.
      Returns:
      never null.
      Since:
      4.1

    • hasReadConcern

      public boolean hasReadConcern()
      Specified by:
      hasReadConcern in interface ReadConcernAware
      Returns:
      true if a ReadConcern is set.

    • getReadConcern

      public com.mongodb.ReadConcern getReadConcern()
      Specified by:
      getReadConcern in interface ReadConcernAware
      Returns:
      the ReadConcern to apply or null if none set.

    • hasReadPreference

      public boolean hasReadPreference()
      Specified by:
      hasReadPreference in interface ReadPreferenceAware
      Returns:
      true if a ReadPreference is set.

    • getReadPreference

      public com.mongodb.ReadPreference getReadPreference()
      Specified by:
      getReadPreference in interface ReadPreferenceAware
      Returns:
      the ReadPreference to apply or null if none set.

    • getMaxTime

      public Duration getMaxTime()
      Returns:
      the time limit for processing. Duration.ZERO is used for the default unbounded behavior.
      Since:
      3.0

    • isSkipResults

      public boolean isSkipResults()
      Returns:
      true to skip results when running an aggregation. Useful in combination with $merge or $out.
      Since:
      3.0.2

    • getDomainTypeMapping

      public AggregationOptions.DomainTypeMapping getDomainTypeMapping()
      Returns:
      the domain type mapping strategy do apply. Never null.
      Since:
      3.2

    • toDocument

      public org.bson.Document toDocument()
      Returns a Document representation of this AggregationOptions.
      Returns:
      never null.

    • hasExecutionTimeLimit

      public boolean hasExecutionTimeLimit()
      Returns:
      true if maxTime is set to a positive value.
      Since:
      3.0

    • toString

      public String toString()
      Overrides:
      toString in class Object