AtomKeyExpression (fdb-record-layer-core-pb3 2.10.164.0 API)

All Superinterfaces:

KeyExpression, PlanHashable, QueryHashable

All Known Implementing Classes:

CollateFunctionKeyExpression, CollateFunctionKeyExpressionFactoryJRE.CollateFunctionKeyExpressionJRE, FieldKeyExpression, FunctionKeyExpression, LiteralKeyExpression, NestingKeyExpression, RecordTypeKeyExpression, SplitKeyExpression, VersionKeyExpression
```
@API(EXPERIMENTAL)
public interface AtomKeyExpression
extends KeyExpression
```
An "atom expression" is one that has semantic meaning; that is, it presence is significant to the meaning of the expression. A non-atom expression (such as Then) is just a holder for its children; in particular, multiple nested non-atom expressions could be collapsed into a single one with the same semantics.

- Nested Class Summary
  - Nested classes/interfaces inherited from interface com.apple.foundationdb.record.metadata.expressions.KeyExpression
    KeyExpression.DeserializationException, KeyExpression.FanType, KeyExpression.InvalidExpressionException, KeyExpression.InvalidResultException, KeyExpression.NoSuchArgumentException, KeyExpression.SerializationException
  - Nested classes/interfaces inherited from interface com.apple.foundationdb.record.PlanHashable
    PlanHashable.PlanHashKind
  - Nested classes/interfaces inherited from interface com.apple.foundationdb.record.QueryHashable
    QueryHashable.QueryHashKind
- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  boolean equalsAtomic(AtomKeyExpression other)
  - Methods inherited from interface com.apple.foundationdb.record.metadata.expressions.KeyExpression
    createsDuplicates, evaluate, evaluateMessage, evaluateSingleton, expand, getColumnSize, getSubKey, hasLosslessNormalization, hasProperInterfaces, hasRecordTypeKey, isPrefixKey, normalizeKeyForPositions, toKeyExpression, toProto, validate, versionColumns
  - Methods inherited from interface com.apple.foundationdb.record.PlanHashable
    planHash, planHash
  - Methods inherited from interface com.apple.foundationdb.record.QueryHashable
    queryHash

Method Detail

equalsAtomic

boolean equalsAtomic(AtomKeyExpression other)