Class LongPoint
- All Implemented Interfaces:
IndexableField
long field for fast range filters. If you also need to store the value, you
should add a separate StoredField instance.
Finding all documents within an N-dimensional shape or range at search time is efficient. Multiple values for the same field in one document is allowed.
This field defines static factory methods for creating common queries:
newExactQuery(String, long)for matching an exact 1D point.newSetQuery(String, long...)for matching a set of 1D values.newRangeQuery(String, long, long)for matching a 1D range.newRangeQuery(String, long[], long[])for matching points/ranges in n-dimensional space.
- See Also:
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Nested Class Summary
Nested classes/interfaces inherited from class org.apache.lucene.document.Field
Field.Store -
Field Summary
Fields inherited from class org.apache.lucene.document.Field
fieldsData, name, type -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionstatic longdecodeDimension(byte[] value, int offset) Decode single long dimensionstatic voidencodeDimension(long value, byte[] dest, int offset) Encode single long dimensionstatic QuerynewExactQuery(String field, long value) Create a query for matching an exact long value.static QuerynewRangeQuery(String field, long[] lowerValue, long[] upperValue) Create a range query for n-dimensional long values.static QuerynewRangeQuery(String field, long lowerValue, long upperValue) Create a range query for long values.static QuerynewSetQuery(String field, long... values) Create a query matching any of the specified 1D values.static QuerynewSetQuery(String field, Collection<Long> values) Create a query matching any of the specified 1D values.Non-null if this field has a numeric valuestatic BytesRefpack(long... point) Pack a long point into a BytesRefvoidsetBytesValue(BytesRef bytes) Expert: change the value of this field.voidsetLongValue(long value) Expert: change the value of this field.voidsetLongValues(long... point) Change the values of this fieldtoString()Prints a Field for human consumption.static voidUnpack a BytesRef into a long point.Methods inherited from class org.apache.lucene.document.Field
binaryValue, fieldType, getCharSequenceValue, invertableType, name, readerValue, setBytesValue, setByteValue, setDoubleValue, setFloatValue, setIntValue, setReaderValue, setShortValue, setStringValue, setTokenStream, storedValue, stringValue, tokenStream, tokenStreamValue
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Constructor Details
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LongPoint
Creates a new LongPoint, indexing the provided N-dimensional long point.- Parameters:
name- field namepoint- long[] value- Throws:
IllegalArgumentException- if the field name or value is null.
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Method Details
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setLongValue
public void setLongValue(long value) Description copied from class:FieldExpert: change the value of this field. SeeField.setStringValue(String).- Overrides:
setLongValuein classField
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setLongValues
public void setLongValues(long... point) Change the values of this field -
setBytesValue
Description copied from class:FieldExpert: change the value of this field. SeeField.setStringValue(String).NOTE: the provided BytesRef is not copied so be sure not to change it until you're done with this field.
- Overrides:
setBytesValuein classField
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numericValue
Description copied from interface:IndexableFieldNon-null if this field has a numeric value- Specified by:
numericValuein interfaceIndexableField- Overrides:
numericValuein classField
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pack
Pack a long point into a BytesRef- Parameters:
point- long[] value- Throws:
IllegalArgumentException- is the value is null or of zero length
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unpack
Unpack a BytesRef into a long point. This method can be used to unpack values that were packed withpack(long...).- Parameters:
bytesRef- BytesRef Valuestart- the start offset to unpack the values frombuf- the buffer to store the values in- Throws:
IllegalArgumentException- if bytesRef or buf are null
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toString
Description copied from class:FieldPrints a Field for human consumption. -
encodeDimension
public static void encodeDimension(long value, byte[] dest, int offset) Encode single long dimension -
decodeDimension
public static long decodeDimension(byte[] value, int offset) Decode single long dimension -
newExactQuery
Create a query for matching an exact long value.This is for simple one-dimension points, for multidimensional points use
newRangeQuery(String, long[], long[])instead.- Parameters:
field- field name. must not benull.value- exact value- Returns:
- a query matching documents with this exact value
- Throws:
IllegalArgumentException- iffieldis null.
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newRangeQuery
Create a range query for long values.This is for simple one-dimension ranges, for multidimensional ranges use
newRangeQuery(String, long[], long[])instead.You can have half-open ranges (which are in fact </≤ or >/≥ queries) by setting
lowerValue = Long.MIN_VALUEorupperValue = Long.MAX_VALUE.Ranges are inclusive. For exclusive ranges, pass
Math.addExact(lowerValue, 1)orMath.addExact(upperValue, -1).- Parameters:
field- field name. must not benull.lowerValue- lower portion of the range (inclusive).upperValue- upper portion of the range (inclusive).- Returns:
- a query matching documents within this range.
- Throws:
IllegalArgumentException- iffieldis null.
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newRangeQuery
Create a range query for n-dimensional long values.You can have half-open ranges (which are in fact </≤ or >/≥ queries) by setting
lowerValue[i] = Long.MIN_VALUEorupperValue[i] = Long.MAX_VALUE.Ranges are inclusive. For exclusive ranges, pass
Math.addExact(lowerValue[i], 1)orMath.addExact(upperValue[i], -1).- Parameters:
field- field name. must not benull.lowerValue- lower portion of the range (inclusive). must not benull.upperValue- upper portion of the range (inclusive). must not benull.- Returns:
- a query matching documents within this range.
- Throws:
IllegalArgumentException- iffieldis null, iflowerValueis null, ifupperValueis null, or iflowerValue.length != upperValue.length
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newSetQuery
Create a query matching any of the specified 1D values. This is the points equivalent ofTermsQuery.- Parameters:
field- field name. must not benull.values- all values to match
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newSetQuery
Create a query matching any of the specified 1D values. This is the points equivalent ofTermsQuery.- Parameters:
field- field name. must not benull.values- all values to match
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