Package org.apache.iotdb.db.mpp.common.filter

Class BasicFunctionFilter

java.lang.Object

org.apache.iotdb.db.mpp.common.filter.QueryFilter

org.apache.iotdb.db.mpp.common.filter.FunctionFilter

org.apache.iotdb.db.mpp.common.filter.BasicFunctionFilter

All Implemented Interfaces:

java.lang.Comparable<QueryFilter>

public class BasicFunctionFilter
extends FunctionFilter

basic operator includes = < > >= <= !=.

Field Summary

Fields

Modifier and Type	Field	Description
protected java.lang.String	value

Fields inherited from class org.apache.iotdb.db.mpp.common.filter.QueryFilter

filterType, isLeaf

Constructor Summary

Constructors

Constructor	Description
BasicFunctionFilter(FilterConstant.FilterType filterType, org.apache.iotdb.commons.path.PartialPath path, java.lang.String value)	BasicFunctionFilter Constructor.

Method Summary

Modifier and Type	Method	Description
BasicFunctionFilter	copy()
static BasicFunctionFilter	deserialize(java.nio.ByteBuffer byteBuffer)
boolean	equals(java.lang.Object o)
java.lang.String	getValue()
int	hashCode()
void	reverseFunc()	reverse func.
void	serialize(java.nio.ByteBuffer byteBuffer)
java.lang.String	showTree(int spaceNum)
java.lang.String	toString()
protected org.apache.iotdb.tsfile.utils.Pair<org.apache.iotdb.tsfile.read.expression.IUnaryExpression,java.lang.String>	transformToSingleQueryFilter(java.util.Map<org.apache.iotdb.commons.path.PartialPath,org.apache.iotdb.tsfile.file.metadata.enums.TSDataType> pathTSDataTypeHashMap)	it will be used in BasicFunction Operator.

Methods inherited from class org.apache.iotdb.db.mpp.common.filter.FunctionFilter

addChildOperator

Methods inherited from class org.apache.iotdb.db.mpp.common.filter.QueryFilter

compareTo, getChildren, getFilterName, getFilterSymbol, getFilterType, getPathSet, getSinglePath, isLeaf, isSingle, serializeWithoutType, setChildren, setFilterType, setIsSingle, setPathSet, setSinglePath, showTree, transformToExpression

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

value

protected java.lang.String value

Constructor Detail

BasicFunctionFilter

public BasicFunctionFilter(FilterConstant.FilterType filterType,
                           org.apache.iotdb.commons.path.PartialPath path,
                           java.lang.String value)
                    throws SQLParserException

BasicFunctionFilter Constructor.

Parameters:

filterType - filter Type

path - path

value - value

Throws:

SQLParserException - SQL Parser Exception

Method Detail

getValue

public java.lang.String getValue()

reverseFunc

public void reverseFunc()

Description copied from class: FunctionFilter

reverse func.

Overrides:

reverseFunc in class FunctionFilter

transformToSingleQueryFilter

protected org.apache.iotdb.tsfile.utils.Pair<org.apache.iotdb.tsfile.read.expression.IUnaryExpression,java.lang.String> transformToSingleQueryFilter(java.util.Map<org.apache.iotdb.commons.path.PartialPath,org.apache.iotdb.tsfile.file.metadata.enums.TSDataType> pathTSDataTypeHashMap)
                                                                                                                                                    throws StatementAnalyzeException,
                                                                                                                                                           org.apache.iotdb.commons.exception.MetadataException

Description copied from class: QueryFilter

it will be used in BasicFunction Operator.

Overrides:

transformToSingleQueryFilter in class QueryFilter

Returns:

- pair.left: UnaryQueryFilter constructed by its one child; pair.right: Path represented by this child.

Throws:

org.apache.iotdb.commons.exception.MetadataException - exception in filter transforming

StatementAnalyzeException

showTree

public java.lang.String showTree(int spaceNum)

Overrides:

showTree in class QueryFilter

copy

public BasicFunctionFilter copy()

Overrides:

copy in class QueryFilter

toString

public java.lang.String toString()

Overrides:

toString in class QueryFilter

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class QueryFilter

hashCode

public int hashCode()

Overrides:

hashCode in class QueryFilter

serialize

public void serialize(java.nio.ByteBuffer byteBuffer)

Overrides:

serialize in class FunctionFilter

deserialize

public static BasicFunctionFilter deserialize(java.nio.ByteBuffer byteBuffer)