com.orientechnologies.orient.core.sql.parser

Class OWhereClause

java.lang.Object

com.orientechnologies.orient.core.sql.parser.SimpleNode

com.orientechnologies.orient.core.sql.parser.OWhereClause

All Implemented Interfaces:

Node

public class OWhereClause
extends SimpleNode

Field Summary

Fields

Modifier and Type	Field and Description
protected OBooleanExpression	baseExpression

Fields inherited from class com.orientechnologies.orient.core.sql.parser.SimpleNode

children, firstToken, id, lastToken, parent, parser, value

Constructor Summary

Constructors

Constructor and Description
OWhereClause(int id)
OWhereClause(OrientSql p, int id)

Method Summary

Modifier and Type	Method and Description
OWhereClause	copy()
void	deserialize(OResult fromResult)
boolean	equals(Object o)
long	estimate(OClass oClass, long threshold, OCommandContext ctx) estimates how many items of this class will be returned applying this filter
void	extractSubQueries(SubQueryCollector collector)
Iterable	fetchFromIndexes(OClass oClass, OCommandContext ctx)
List<OAndBlock>	flatten()
OBooleanExpression	getBaseExpression()
List<OAndBlock>	getFlattened()
List<OBinaryCondition>	getIndexedFunctionConditions(OClass iSchemaClass, ODatabaseDocumentInternal database)
int	hashCode()
boolean	isCacheable()
boolean	matchesFilters(OIdentifiable currentRecord, OCommandContext ctx)
boolean	matchesFilters(OResult currentRecord, OCommandContext ctx)
boolean	needsAliases(Set<String> aliases)
boolean	refersToParent()
OResult	serialize()
void	setBaseExpression(OBooleanExpression baseExpression)
void	setFlattened(List<OAndBlock> flattened)
void	toString(Map<Object,Object> params, StringBuilder builder)

Methods inherited from class com.orientechnologies.orient.core.sql.parser.SimpleNode

childrenAccept, dump, getDatabase, getValue, jjtAccept, jjtAddChild, jjtClose, jjtGetChild, jjtGetFirstToken, jjtGetLastToken, jjtGetNumChildren, jjtGetParent, jjtGetValue, jjtOpen, jjtSetFirstToken, jjtSetLastToken, jjtSetParent, jjtSetValue, toString, toString

Methods inherited from class java.lang.Object

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

Field Detail

baseExpression

protected OBooleanExpression baseExpression

Constructor Detail

OWhereClause

public OWhereClause(int id)

OWhereClause

public OWhereClause(OrientSql p,
                    int id)

Method Detail

matchesFilters

public boolean matchesFilters(OIdentifiable currentRecord,
                              OCommandContext ctx)

matchesFilters

public boolean matchesFilters(OResult currentRecord,
                              OCommandContext ctx)

toString

public void toString(Map<Object,Object> params,
                     StringBuilder builder)

Overrides:

toString in class SimpleNode

estimate

public long estimate(OClass oClass,
                     long threshold,
                     OCommandContext ctx)

estimates how many items of this class will be returned applying this filter

Returns:

an estimation of the number of records of this class returned applying this filter, 0 if and only if sure that no records are returned

fetchFromIndexes

public Iterable fetchFromIndexes(OClass oClass,
                                 OCommandContext ctx)

flatten

public List<OAndBlock> flatten()

getIndexedFunctionConditions

public List<OBinaryCondition> getIndexedFunctionConditions(OClass iSchemaClass,
                                                           ODatabaseDocumentInternal database)

needsAliases

public boolean needsAliases(Set<String> aliases)

setBaseExpression

public void setBaseExpression(OBooleanExpression baseExpression)

copy

public OWhereClause copy()

Overrides:

copy in class SimpleNode

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

extractSubQueries

public void extractSubQueries(SubQueryCollector collector)

refersToParent

public boolean refersToParent()

getBaseExpression

public OBooleanExpression getBaseExpression()

getFlattened

public List<OAndBlock> getFlattened()

setFlattened

public void setFlattened(List<OAndBlock> flattened)

serialize

public OResult serialize()

deserialize

public void deserialize(OResult fromResult)

isCacheable

public boolean isCacheable()