Package org.apache.iotdb.db.qp.logical.crud

Class LikeOperator

java.lang.Object

org.apache.iotdb.db.qp.logical.crud.FilterOperator

org.apache.iotdb.db.qp.logical.crud.FunctionOperator

org.apache.iotdb.db.qp.logical.crud.LikeOperator

All Implemented Interfaces:

java.lang.Comparable<FilterOperator>

public class LikeOperator
extends FunctionOperator

fuzzy query structure LikeOperator.

Field Summary

Fields

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

Fields inherited from class org.apache.iotdb.db.qp.logical.crud.FilterOperator

filterType, isLeaf

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method	Description
LikeOperator	copy()
boolean	equals(java.lang.Object o)
java.lang.String	getValue()
int	hashCode()
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.qp.logical.crud.FunctionOperator

addChildOperator, reverseFunc

Methods inherited from class org.apache.iotdb.db.qp.logical.crud.FilterOperator

compareTo, getChildren, getFilterName, getFilterSymbol, getFilterType, getPathSet, getSinglePath, isLeaf, isSingle, 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

LikeOperator

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

Method Detail

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 LogicalOperatorException,
                                                                                                                                                           org.apache.iotdb.commons.exception.MetadataException

Description copied from class: FilterOperator

it will be used in BasicFunction Operator.

Overrides:

transformToSingleQueryFilter in class FilterOperator

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

LogicalOperatorException

showTree

public java.lang.String showTree(int spaceNum)

Overrides:

showTree in class FilterOperator

copy

public LikeOperator copy()

Overrides:

copy in class FilterOperator

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class FilterOperator

hashCode

public int hashCode()

Overrides:

hashCode in class FilterOperator

toString

public java.lang.String toString()

Overrides:

toString in class FilterOperator

getValue

public java.lang.String getValue()