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## org.biojava.bio.search
Class SimpleSeqSimilaritySearchHit

    java.lang.Object
      org.biojava.utils.AbstractChangeable
          org.biojava.bio.search.SimpleSeqSimilaritySearchHit

All Implemented Interfaces:
  Annotatable, SeqSimilaritySearchHit, Changeable

    public class SimpleSeqSimilaritySearchHit

extends AbstractChangeable
implements SeqSimilaritySearchHit

`SimpleSeqSimilaritySearchHit` objects represent a similarity search hit of a query sequence to a sequence referenced in a SequenceDB object. The core data (score, E-value, P-value) have accessors, while supplementary data are stored in the Annotation object. Supplementary data are typically the more loosely formatted details which vary from one search program to another (and between versions of those programs).

It is up to the user to define the meaning of the hit's query/subject start/end/strand with respect to its constituent sub-hits. One approach could be:

- Hit query/subject start == start of first sub-hit
- Hit query/subject end == end of last sub-hit
- Hit strand == POSITIVE if all sub-hits have strand POSITIVE
- Hit strand == NEGATIVE if all sub-hits have strand NEGATIVE
- Hit strand == UNKNOWN if sub-hits have either mixed or any UNKNOWN strands
- Hit strand == null if the concept of strandedness is inappropriate for the sequence type i.e. for protein

Since:
  1.1
Author:
  Keith James, Gerald Loeffler
See Also:
  `AbstractChangeable`, `SeqSimilaritySearchHit`, `Annotatable`

Nested Class Summary

Nested classes/interfaces inherited from interface org.biojava.bio.search.SeqSimilaritySearchHit
`SeqSimilaritySearchHit.ByScoreComparator, SeqSimilaritySearchHit.BySubHitCountComparator`

Nested classes/interfaces inherited from interface org.biojava.bio.Annotatable
`Annotatable.AnnotationForwarder`

Field Summary
`protected ChangeForwarder` | `annotationForwarder`

Fields inherited from interface org.biojava.bio.search.SeqSimilaritySearchHit
`byScore, bySubHitCount`

Fields inherited from interface org.biojava.bio.Annotatable
`ANNOTATION`

Constructor Summary
`SimpleSeqSimilaritySearchHit(double score, double eValue, double pValue, int queryStart, int queryEnd, StrandedFeature.Strand queryStrand, int subjectStart, int subjectEnd, StrandedFeature.Strand subjectStrand, String subjectID, Annotation annotation, List subHits)` Creates a new `SimpleSeqSimilaritySearchHit` object.

Method Summary
`boolean` | `equals(Object other)`
`Annotation` | `getAnnotation()` `getAnnotation` returns the Annotation associated with this hit.
`protected ChangeSupport` | `getChangeSupport(ChangeType ct)` Called to retrieve the ChangeSupport for this object.
`double` | `getEValue()` Return the overall E-value of this hit.
`double` | `getPValue()` Return the overall P-value of this hit.
`int` | `getQueryEnd()` Return the end position of the last sub-hit in the query sequence.
`int` | `getQueryStart()` Return the start position of the first sub-hit in the query sequence.
`StrandedFeature.Strand` | `getQueryStrand()` Return the strand of the hit with respect to the query sequence.
`double` | `getScore()` Return the overall score of this hit in the units defined by the search algorithm.
`List` | `getSubHits()` Return all sub-hits for this sequence similarity search hit.
`int` | `getSubjectEnd()` Return the end position of the last sub-hit in the subject sequence.
`String` | `getSubjectID()` The sequence identifier of this hit within the sequence database against which the search was performed.
`int` | `getSubjectStart()` Return the start position of the first sub-hit in the subject sequence.
`StrandedFeature.Strand` | `getSubjectStrand()` Return the strand of the sub-hit with respect to the subject sequence.
`int` | `hashCode()`
`String` | `toString()`

Methods inherited from class org.biojava.utils.AbstractChangeable
`addChangeListener, addChangeListener, generateChangeSupport, hasListeners, hasListeners, isUnchanging, removeChangeListener, removeChangeListener`

Methods inherited from class java.lang.Object
`clone, finalize, getClass, notify, notifyAll, wait, wait, wait`

Methods inherited from interface org.biojava.utils.Changeable
`addChangeListener, addChangeListener, isUnchanging, removeChangeListener, removeChangeListener`

Field Detail

### annotationForwarder

    protected transient ChangeForwarder annotationForwarder

Constructor Detail

### SimpleSeqSimilaritySearchHit

    public SimpleSeqSimilaritySearchHit(double score,
                                        double eValue,
                                        double pValue,
                                        int queryStart,
                                        int queryEnd,
                                        StrandedFeature.Strand queryStrand,
                                        int subjectStart,
                                        int subjectEnd,
                                        StrandedFeature.Strand subjectStrand,
                                        String subjectID,
                                        Annotation annotation,
                                        List subHits)

  Creates a new `SimpleSeqSimilaritySearchHit` object.

  Parameters:
    `score` - a `double` value; the score of the hit, which may not be NaN.
    `eValue` - a `double` value; the E-value of the hit, which may be NaN.
    `pValue` - a `double` value; the P-value of the hit, which may be NaN.
    `queryStart` - the start of the first sub-hit on the query sequence.
    `queryEnd` - the end of the last sub-hit on the query sequence.
    `queryStrand` - the strand of the sub-hits on the query sequence, which may be null for protein similarities. If they are not all positive or all negative, then this should be the unknown strand.
    `subjectStart` - the start of the first sub-hit on the subject sequence.
    `subjectEnd` - the end of the last sub-hit on the subject sequence.
    `subjectStrand` - the strand of the sub-hits on the subject sequence, which may be null for protein similarities. If they are not all positive or all negative, then this should be the unknown strand.
    `subjectID` - a `String` representing the ID in the SequenceDB of the sequence which was hit, which may not be null.
    `annotation` - an `Annotation` object, which may not be null.
    `subHits` - a `List` object containing the subhits, which may not be null. They should be sorted in the order specified by the search program.

Method Detail

### getScore

    public double getScore()

  Description copied from interface: `SeqSimilaritySearchHit`
  Return the overall score of this hit in the units defined by the search algorithm.

  Specified by:
    `getScore` in interface `SeqSimilaritySearchHit`
  Returns:
    the overall score of this hit. This is a mandatory piece of information and hence may not be NaN.

### getPValue

    public double getPValue()

  Description copied from interface: `SeqSimilaritySearchHit`
  Return the overall P-value of this hit.

  Specified by:
    `getPValue` in interface `SeqSimilaritySearchHit`
  Returns:
    the overall P-value of this hit. This is an optional (but desired) piece of information and implementations of this interface may return NaN if a P-value is not available for this hit.

### getEValue

    public double getEValue()

  Description copied from interface: `SeqSimilaritySearchHit`
  Return the overall E-value of this hit.

  Specified by:
    `getEValue` in interface `SeqSimilaritySearchHit`
  Returns:
    the overall E-value of this hit. This is an optional (but desired) piece of information and implementations of this interface may return NaN if an E-value is not available for this hit.

### getQueryStart

    public int getQueryStart()

  Description copied from interface: `SeqSimilaritySearchHit`
  Return the start position of the first sub-hit in the query sequence.

  Specified by:
    `getQueryStart` in interface `SeqSimilaritySearchHit`
  Returns:
    an `int`.

### getQueryEnd

    public int getQueryEnd()

  Description copied from interface: `SeqSimilaritySearchHit`
  Return the end position of the last sub-hit in the query sequence.

  Specified by:
    `getQueryEnd` in interface `SeqSimilaritySearchHit`
  Returns:
    an `int`.

### getQueryStrand

    public StrandedFeature.Strand getQueryStrand()

  Description copied from interface: `SeqSimilaritySearchHit`
  Return the strand of the hit with respect to the query sequence. If the sub-hits are not all on the same strand this should return the unknown strand. This may be null for protein sequences.

  Specified by:
    `getQueryStrand` in interface `SeqSimilaritySearchHit`
  Returns:
    a `Strand`.

### getSubjectStart

    public int getSubjectStart()

  Description copied from interface: `SeqSimilaritySearchHit`
  Return the start position of the first sub-hit in the subject sequence.

  Specified by:
    `getSubjectStart` in interface `SeqSimilaritySearchHit`
  Returns:
    an `int`.

### getSubjectEnd

    public int getSubjectEnd()

  Description copied from interface: `SeqSimilaritySearchHit`
  Return the end position of the last sub-hit in the subject sequence.

  Specified by:
    `getSubjectEnd` in interface `SeqSimilaritySearchHit`
  Returns:
    an `int`.

### getSubjectStrand

    public StrandedFeature.Strand getSubjectStrand()

  Description copied from interface: `SeqSimilaritySearchHit`
  Return the strand of the sub-hit with respect to the subject sequence. If the sub-hits are not all on the same strand this should return the unknown strand. This may be null for protein sequences.

  Specified by:
    `getSubjectStrand` in interface `SeqSimilaritySearchHit`
  Returns:
    a `Strand`.

### getSubjectID

    public String getSubjectID()

  Description copied from interface: `SeqSimilaritySearchHit`
  The sequence identifier of this hit within the sequence database against which the search was performed.

  Specified by:
    `getSubjectID` in interface `SeqSimilaritySearchHit`
  Returns:
    the (unique) sequence identifier for this hit, valid within the sequence database against which this search was performed. Never returns null.

### getSubHits

    public List getSubHits()

  Description copied from interface: `SeqSimilaritySearchHit`
  Return all sub-hits for this sequence similarity search hit. The sub-hits contain concrete alignments (and scores) for sequence stretches from the sequence of this hit. The sub-hits in the list returned by this method are sorted from best to worst.

  Specified by:
    `getSubHits` in interface `SeqSimilaritySearchHit`
  Returns:
    a List of SeqSimilaritySearchSubHit objects containing all sub-hits for this hit. Never returns null and the List is guaranteed to contain at least one entry.

### getAnnotation

    public Annotation getAnnotation()

  `getAnnotation` returns the Annotation associated with this hit.

  Specified by:
    `getAnnotation` in interface `Annotatable`
  Returns:
    an `Annotation`.

### equals

    public boolean equals(Object other)

  Overrides:
    `equals` in class `Object`

### hashCode

    public int hashCode()

  Overrides:
    `hashCode` in class `Object`

### toString

    public String toString()

  Overrides:
    `toString` in class `Object`

### getChangeSupport

    protected ChangeSupport getChangeSupport(ChangeType ct)

  Description copied from class: `AbstractChangeable`
  Called to retrieve the ChangeSupport for this object.

  Your implementation of this method should have the following structure: ``

       ChangeSupport cs = super.getChangeSupport(ct);

       if(someForwarder == null && ct.isMatching(SomeInterface.SomeChangeType)) {
         someForwarder = new ChangeForwarder(...

         this.stateVariable.addChangeListener(someForwarder, VariableInterface.AChange);
       }

       return cs;

  It is usual for the forwarding listeners (someForwarder in this example) to be transient and lazily instantiated. Be sure to register & unregister the forwarder in the code that does the ChangeEvent handling in setter methods.

  Overrides:
    `getChangeSupport` in class `AbstractChangeable`

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