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java.lang.Objectorg.apache.hadoop.hbase.filter.FilterBase
org.apache.hadoop.hbase.filter.CompareFilter
public abstract class CompareFilter
This is a generic filter to be used to filter by comparison. It takes an operator (equal, greater, not equal, etc) and a byte [] comparator.
To filter by row key, use RowFilter
.
To filter by column qualifier, use QualifierFilter
.
To filter by value, use SingleColumnValueFilter
.
These filters can be wrapped with SkipFilter
and WhileMatchFilter
to add more control.
Multiple filters can be combined using FilterList
.
Nested Class Summary | |
---|---|
static class |
CompareFilter.CompareOp
Comparison operators. |
Nested classes/interfaces inherited from interface org.apache.hadoop.hbase.filter.Filter |
---|
Filter.ReturnCode |
Field Summary | |
---|---|
protected WritableByteArrayComparable |
comparator
|
protected CompareFilter.CompareOp |
compareOp
|
Constructor Summary | |
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CompareFilter()
Writable constructor, do not use. |
|
CompareFilter(CompareFilter.CompareOp compareOp,
WritableByteArrayComparable comparator)
Constructor. |
Method Summary | |
---|---|
protected boolean |
doCompare(CompareFilter.CompareOp compareOp,
WritableByteArrayComparable comparator,
byte[] data,
int offset,
int length)
|
static ArrayList |
extractArguments(ArrayList<byte[]> filterArguments)
|
WritableByteArrayComparable |
getComparator()
|
CompareFilter.CompareOp |
getOperator()
|
void |
readFields(DataInput in)
|
String |
toString()
Return filter's info for debugging and logging purpose. |
void |
write(DataOutput out)
|
Methods inherited from class org.apache.hadoop.hbase.filter.FilterBase |
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createFilterFromArguments, filterAllRemaining, filterKeyValue, filterRow, filterRow, filterRowKey, getNextKeyHint, hasFilterRow, isFamilyEssential, isFamilyEssential, reset, transform |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
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protected CompareFilter.CompareOp compareOp
protected WritableByteArrayComparable comparator
Constructor Detail |
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public CompareFilter()
public CompareFilter(CompareFilter.CompareOp compareOp, WritableByteArrayComparable comparator)
compareOp
- the compare op for row matchingcomparator
- the comparator for row matchingMethod Detail |
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public CompareFilter.CompareOp getOperator()
public WritableByteArrayComparable getComparator()
protected boolean doCompare(CompareFilter.CompareOp compareOp, WritableByteArrayComparable comparator, byte[] data, int offset, int length)
public static ArrayList extractArguments(ArrayList<byte[]> filterArguments)
public void readFields(DataInput in) throws IOException
IOException
public void write(DataOutput out) throws IOException
IOException
public String toString()
FilterBase
toString
in class FilterBase
|
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