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
protected List<OAndBlock>	flattened

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
long	estimate(OClass oClass, long threshold, OCommandContext ctx) estimates how many items of this class will be returned applying this filter
Iterable	fetchFromIndexes(OClass oClass, OCommandContext ctx)
List<OAndBlock>	flatten()
List<OBinaryCondition>	getIndexedFunctionConditions(OClass iSchemaClass, ODatabaseDocumentInternal database)
Object	jjtAccept(OrientSqlVisitor visitor, Object data) Accept the visitor.
boolean	matchesFilters(OIdentifiable currentRecord, OCommandContext ctx)
void	toString(Map<Object,Object> params, StringBuilder builder)

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

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

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

baseExpression

protected OBooleanExpression baseExpression

flattened

protected List<OAndBlock> flattened

Constructor Detail

OWhereClause

public OWhereClause(int id)

OWhereClause

public OWhereClause(OrientSql p,
                    int id)

Method Detail

jjtAccept

public Object jjtAccept(OrientSqlVisitor visitor,
                        Object data)

Accept the visitor. *

Specified by:

jjtAccept in interface Node

Overrides:

jjtAccept in class SimpleNode

matchesFilters

public boolean matchesFilters(OIdentifiable 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

Parameters:

oClass -

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)