[HBase基础]--40种HBase Filter的使用说明

版本：HBase-1.2.x

参考：

1. http://hbase.apache.org/1.2/devapidocs/org/apache/hadoop/hbase/filter/package-use.html#org.apache.hadoop.hbase.filter
2. http://hbase.apache.org/1.2/devapidocs/index.html

说明：

Classes in org.apache.hadoop.hbase.filter used by org.apache.hadoop.hbase.filter  

Class and Description
BinaryComparator A binary comparator which lexicographically compares against the specified byte array using Bytes.compareTo(byte[], byte[]).
BinaryPrefixComparator A comparator which compares against a specified byte array, but only compares up to the length of this byte array.
BitComparator A bit comparator which performs the specified bitwise operation on each of the bytes with the specified byte array.
BitComparator.BitwiseOp Bit operators.
ByteArrayComparable Base class for byte array comparators
ColumnCountGetFilter Simple filter that returns first N columns on row only.
ColumnPaginationFilter A filter, based on the ColumnCountGetFilter, takes two arguments: limit and offset.
ColumnPrefixFilter This filter is used for selecting only those keys with columns that matches a particular prefix.
ColumnRangeFilter This filter is used for selecting only those keys with columns that are between minColumn to maxColumn.
CompareFilter This is a generic filter to be used to filter by comparison.
CompareFilter.CompareOp Comparison operators.
DependentColumnFilter A filter for adding inter-column timestamp matching Only cells with a correspondingly timestamped entry in the target column will be retained Not compatible with Scan.setBatch as operations need full rows for correct filtering
FamilyFilter This filter is used to filter based on the column family.
Filter Interface for row and column filters directly applied within the regionserver.
Filter.ReturnCode Return codes for filterValue().
FilterBase Abstract base class to help you implement new Filters.
FilterList Implementation of Filter that represents an ordered List of Filters which will be evaluated with a specified boolean operator FilterList.Operator.MUST_PASS_ALL (AND) or FilterList.Operator.MUST_PASS_ONE (OR).
FilterList.Operator set operator
FilterWrapper This is a Filter wrapper class which is used in the server side.
FilterWrapper.FilterRowRetCode
FirstKeyOnlyFilter A filter that will only return the first KV from each row.
FirstKeyValueMatchingQualifiersFilter The filter looks for the given columns in KeyValue.
FuzzyRowFilter This is optimized version of a standard FuzzyRowFilter Filters data based on fuzzy row key.
InclusiveStopFilter A Filter that stops after the given row.
KeyOnlyFilter A filter that will only return the key component of each KV (the value will be rewritten as empty).
LongComparator A long comparator which numerical compares against the specified byte array
MultipleColumnPrefixFilter This filter is used for selecting only those keys with columns that matches a particular prefix.
MultiRowRangeFilter Filter to support scan multiple row key ranges.
MultiRowRangeFilter.RowRange
NullComparator A binary comparator which lexicographically compares against the specified byte array using Bytes.compareTo(byte[], byte[]).
PageFilter Implementation of Filter interface that limits results to a specific page size.
PrefixFilter Pass results that have same row prefix.
QualifierFilter This filter is used to filter based on the column qualifier.
RandomRowFilter A filter that includes rows based on a chance.
RegexStringComparator This comparator is for use with CompareFilter implementations, such as RowFilter, QualifierFilter, and ValueFilter, for filtering based on the value of a given column.
RegexStringComparator.EngineType Engine implementation type (default=JAVA)
RowFilter This filter is used to filter based on the key.
SingleColumnValueExcludeFilter A Filter that checks a single column value, but does not emit the tested column.
SingleColumnValueFilter This filter is used to filter cells based on value.
SkipFilter A wrapper filter that filters an entire row if any of the Cell checks do not pass.
SubstringComparator This comparator is for use with SingleColumnValueFilter, for filtering based on the value of a given column.
TimestampsFilter Filter that returns only cells whose timestamp (version) is in the specified list of timestamps (versions).
ValueFilter This filter is used to filter based on column value.
WhileMatchFilter A wrapper filter that returns true from WhileMatchFilter.filterAllRemaining() as soon as the wrapped filters Filter.filterRowKey(byte[], int, int), Filter.filterKeyValue(org.apache.hadoop.hbase.Cell), Filter.filterRow() or Filter.filterAllRemaining() methods returns true.