Example usage for org.apache.lucene.search FieldComparatorSource FieldComparatorSource

Introduction

In this page you can find the example usage for org.apache.lucene.search FieldComparatorSource FieldComparatorSource.

Prototype

FieldComparatorSource

Source Link

Usage

From source file:com.stratio.cassandra.index.ClusteringKeyMapperGeneric.java

License:Apache License

@Override
public SortField[] sortFields() {
    return new SortField[] { new SortField(FIELD_NAME, new FieldComparatorSource() {
        @Override//from  www. ja va  2 s  . co m
        public FieldComparator<?> newComparator(String field, int hits, int sort, boolean reversed)
                throws IOException {
            return new ClusteringKeySorter(ClusteringKeyMapperGeneric.this, hits, field);
        }
    }) };
}

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From source file:com.stratio.cassandra.index.TokenMapperGeneric.java

License:Apache License

/** {@inheritDoc} */
@Override//from  w  ww .  j  a va  2s.com
public SortField[] sortFields() {
    return new SortField[] { new SortField(FIELD_NAME, new FieldComparatorSource() {
        @Override
        public FieldComparator<?> newComparator(String field, int hits, int sort, boolean reversed)
                throws IOException {
            return new TokenMapperGenericSorter(TokenMapperGeneric.this, hits, field);
        }
    }) };
}

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From source file:com.stratio.cassandra.lucene.key.KeyMapper.java

License:Apache License

/**
 * Returns a Lucene {@link SortField} to sort documents by primary key according to Cassandra's natural order.
 *
 * @return the sort field//w  w  w  .j  a  va2s  . c om
 */
public SortField sortField() {
    return new SortField(FIELD_NAME, new FieldComparatorSource() {
        @Override
        public FieldComparator<?> newComparator(String field, int hits, int sort, boolean reversed)
                throws IOException {
            return new FieldComparator.TermValComparator(hits, field, false) {
                @Override
                public int compareValues(BytesRef val1, BytesRef val2) {
                    return entry(val1).compareTo(entry(val2));
                }
            };
        }
    });
}

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From source file:com.stratio.cassandra.lucene.key.KeySort.java

License:Apache License

/**
 * Builds a new {@link KeySort} for the specified {@link KeyMapper}.
 *
 * @param mapper the primary key mapper to be used
 *///from  w  w  w.j  a v a 2s .  co  m
KeySort(KeyMapper mapper) {
    super(KeyMapper.FIELD_NAME, new FieldComparatorSource() {
        @Override
        public FieldComparator<?> newComparator(String field, int hits, int sort, boolean reversed)
                throws IOException {
            return new FieldComparator.TermValComparator(hits, field, false) {
                @Override
                public int compareValues(BytesRef val1, BytesRef val2) {
                    return mapper.entry(val1).compareTo(mapper.entry(val2));
                }
            };
        }
    });
}

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From source file:com.stratio.cassandra.lucene.key.PartitionMapper.java

License:Apache License

/**
 * Returns a Lucene {@link SortField} for sorting documents/rows according to the partition key.
 *
 * @return a sort field for sorting by partition key
 *//*from  w w  w .j  a  v  a2s. c om*/
public SortField sortField() {
    return new SortField(FIELD_NAME, new FieldComparatorSource() {
        @Override
        public FieldComparator<?> newComparator(String field, int hits, int sort, boolean reversed)
                throws IOException {
            return new FieldComparator.TermValComparator(hits, field, false) {
                @Override
                public int compareValues(BytesRef val1, BytesRef val2) {
                    ByteBuffer bb1 = ByteBufferUtils.byteBuffer(val1);
                    ByteBuffer bb2 = ByteBufferUtils.byteBuffer(val2);
                    return ByteBufferUtil.compareUnsigned(bb1, bb2);
                }
            };
        }
    });
}

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From source file:com.stratio.cassandra.lucene.key.PartitionSort.java

License:Apache License

/**
 * Builds a new {@link PartitionSort} for the specified {@link PartitionMapper}.
 *
 * @param mapper the partition key mapper to be used
 *///from  ww  w.  j a  va  2 s  .  c  o m
PartitionSort(PartitionMapper mapper) {
    super(PartitionMapper.FIELD_NAME, new FieldComparatorSource() {
        @Override
        public FieldComparator<?> newComparator(String field, int hits, int sort, boolean reversed)
                throws IOException {
            return new FieldComparator.TermValComparator(hits, field, false) {
                @Override
                public int compareValues(BytesRef val1, BytesRef val2) {
                    ByteBuffer bb1 = ByteBufferUtils.byteBuffer(val1);
                    ByteBuffer bb2 = ByteBufferUtils.byteBuffer(val2);
                    return mapper.getType().compare(bb1, bb2);
                }
            };
        }
    });
}

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From source file:com.stratio.cassandra.lucene.service.ClusteringKeyMapper.java

License:Apache License

/**
 * Returns a Lucene {@link SortField} array for sorting documents/rows according to the column family name.
 *
 * @return A Lucene {@link SortField} array for sorting documents/rows according to the column family name.
 *//*from w w  w  .j ava 2 s  . c  om*/
public SortField[] sortFields() {
    return new SortField[] { new SortField(FIELD_NAME, new FieldComparatorSource() {
        @Override
        public FieldComparator<?> newComparator(String field, int hits, int sort, boolean reversed)
                throws IOException {
            return new FieldComparator.TermValComparator(hits, field, false) {
                @Override
                public int compareValues(BytesRef val1, BytesRef val2) {
                    CellName bb1 = clusteringKey(val1);
                    CellName bb2 = clusteringKey(val2);
                    return cellNameType.compare(bb1, bb2);
                }
            };
        }
    }) };
}

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From source file:com.stratio.cassandra.lucene.service.TokenMapperGeneric.java

License:Apache License

/** {@inheritDoc} */
@Override/*from w  ww.ja  v  a 2s  . com*/
public SortField[] sortFields() {
    return new SortField[] { new SortField(FIELD_NAME, new FieldComparatorSource() {
        @Override
        public FieldComparator<?> newComparator(String field, int hits, int sort, boolean reversed)
                throws IOException {
            return new FieldComparator.TermValComparator(hits, field, false) {
                @Override
                public int compareValues(BytesRef val1, BytesRef val2) {
                    return token(val1).compareTo(token(val2));
                }
            };
        }
    }) };
}

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From source file:io.crate.execution.engine.sort.SortSymbolVisitor.java

License:Apache License

private SortField customSortField(String name, final Symbol symbol, final SortSymbolContext context,
        final boolean missingNullValue) {
    InputFactory.Context<? extends LuceneCollectorExpression<?>> inputContext = docInputFactory.getCtx();
    final Input input = inputContext.add(symbol);
    final Collection<? extends LuceneCollectorExpression<?>> expressions = inputContext.expressions();

    return new SortField(name, new FieldComparatorSource() {
        @Override/*from ww w .  j a v a 2 s.com*/
        public FieldComparator<?> newComparator(String fieldName, int numHits, int sortPos, boolean reversed) {
            for (LuceneCollectorExpression collectorExpression : expressions) {
                collectorExpression.startCollect(context.context);
            }
            DataType dataType = symbol.valueType();
            Object missingValue = missingNullValue ? null
                    : SortSymbolVisitor.missingObject(dataType,
                            SortOrder.missing(context.reverseFlag, context.nullFirst), reversed);

            if (context.context.visitor().required()) {
                return new FieldsVisitorInputFieldComparator(numHits, context.context.visitor(), expressions,
                        input, dataType, missingValue);

            } else {
                return new InputFieldComparator(numHits, expressions, input, dataType, missingValue);
            }
        }
    }, context.reverseFlag);
}

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From source file:org.drftpd.vfs.index.lucene.LuceneEngine.java

License:Open Source License

private void setSortFieldRandom() {
    SORT.setSort(new SortField("", new FieldComparatorSource() {
        @Override//from w w  w .ja  va  2 s.  c om
        public FieldComparator<Integer> newComparator(String fieldname, int numHits, int sortPos,
                boolean reversed) throws IOException {
            return new RandomOrderFieldComparator();
        }
    }));
}

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