ReadableVectorMatch (druid-processing 28.0.1 API)

All Known Implementing Classes:

VectorMatch
```
public interface ReadableVectorMatch
```
The result of calling VectorValueMatcher.match(org.apache.druid.query.filter.vector.ReadableVectorMatch, boolean).

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`int[]`	`getSelection()`	Returns an array of indexes into the current batch.
`int`	`getSelectionSize()`	Returns the number of valid values in the array from "getSelection".
`boolean`	`isAllFalse()`	Checks if this match has accepted nothing.
`boolean`	`isAllTrue(int vectorSize)`	Checks if this match has accepted every row in the vector.
`boolean`	`isValid(ReadableVectorMatch mask)`	Checks if this match is valid (increasing row numbers, no out-of-range row numbers).

- Method Detail
  - getSelection
```
int[] getSelection()
```
    Returns an array of indexes into the current batch. Only the first "getSelectionSize" are valid. Even though this array is technically mutable, it is very poor form to mutate it if you are not the owner of the VectorMatch object. The reason we use a mutable array here instead of positional getter methods, by the way, is in the hopes of keeping access to the selection vector as low-level and optimizable as possible. Potential optimizations could include making it easier for the JVM to use CPU-level vectorization, avoid method calls, etc.
  - getSelectionSize
```
int getSelectionSize()
```
    Returns the number of valid values in the array from "getSelection".
  - isAllTrue
```
boolean isAllTrue(int vectorSize)
```
    Checks if this match has accepted every row in the vector.
    
    Parameters:
    
    vectorSize - the current vector size; must be passed in since VectorMatch objects do not "know" the size of the vector they came from.
  - isAllFalse
```
boolean isAllFalse()
```
    Checks if this match has accepted *nothing*.
  - isValid
```
boolean isValid(@Nullable
                ReadableVectorMatch mask)
```
    Checks if this match is valid (increasing row numbers, no out-of-range row numbers). Can additionally verify that the match is a subset of a provided "mask". Used by assertions and tests.
    
    Parameters:
    
    mask - if provided, checks if this match is a subset of the mask.