Package org.teiid.translator.solr

Class SolrSQLHierarchyVistor

java.lang.Object

org.teiid.language.visitor.AbstractLanguageVisitor

org.teiid.language.visitor.HierarchyVisitor

org.teiid.translator.solr.SolrSQLHierarchyVistor

All Implemented Interfaces:

LanguageObjectVisitor

public class SolrSQLHierarchyVistor
extends HierarchyVisitor

Field Summary

Fields

Modifier and Type	Field	Description
protected StringBuilder	buffer
protected Stack<String>	onGoingExpression

Constructor Summary

Constructors

Constructor	Description
SolrSQLHierarchyVistor(RuntimeMetadata metadata, SolrExecutionFactory ef)

Method Summary

Modifier and Type	Method	Description
protected String	escapeString(String str)	Creates a SQL-safe string.
static String	getColumnName(ColumnReference obj)
List<String>	getFieldNameList()
org.apache.solr.client.solrj.SolrQuery	getSolrQuery()
boolean	isCountStarInUse()
boolean	isLimitInUse()
void	visit(AggregateFunction obj)
void	visit(AndOr obj)
void	visit(ColumnReference obj)
void	visit(Comparison obj)	Note: Solr does not support <,> exclusively.
void	visit(DerivedColumn obj)
void	visit(Function obj)
void	visit(In obj)
void	visit(Like obj)
void	visit(Limit obj)
void	visit(Literal obj)
void	visit(OrderBy obj)
void	visit(SortSpecification obj)

Methods inherited from class org.teiid.language.visitor.HierarchyVisitor

visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit

Methods inherited from class org.teiid.language.visitor.AbstractLanguageVisitor

visit, visit, visit, visit, visitNode, visitNodes, visitNodes

Methods inherited from class java.lang.Object

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

Field Detail

buffer

protected StringBuilder buffer

onGoingExpression

protected Stack<String> onGoingExpression

Constructor Detail

SolrSQLHierarchyVistor

public SolrSQLHierarchyVistor(RuntimeMetadata metadata,
                              SolrExecutionFactory ef)

Method Detail

visit

public void visit(DerivedColumn obj)

Specified by:

visit in interface LanguageObjectVisitor

Overrides:

visit in class HierarchyVisitor

getColumnName

public static String getColumnName(ColumnReference obj)

visit

public void visit(ColumnReference obj)

Specified by:

visit in interface LanguageObjectVisitor

Overrides:

visit in class AbstractLanguageVisitor

getFieldNameList

public List<String> getFieldNameList()

Returns:

the full column names tableName.columnNames

visit

public void visit(Comparison obj)

Note: Solr does not support <,> exclusively. It is always <=, >=

Specified by:

visit in interface LanguageObjectVisitor

Overrides:

visit in class HierarchyVisitor

visit

public void visit(AndOr obj)

Specified by:

visit in interface LanguageObjectVisitor

Overrides:

visit in class HierarchyVisitor

visit

public void visit(In obj)

Specified by:

visit in interface LanguageObjectVisitor

Overrides:

visit in class HierarchyVisitor

visit

public void visit(Like obj)

Specified by:

visit in interface LanguageObjectVisitor

Overrides:

visit in class HierarchyVisitor

See Also:

Description: transforms the like statements into solor syntax

visit

public void visit(Literal obj)

Specified by:

visit in interface LanguageObjectVisitor

Overrides:

visit in class AbstractLanguageVisitor

escapeString

protected String escapeString(String str)

Creates a SQL-safe string. Simply replaces all occurrences of ' with ''

Parameters:

str - the input string

Returns:

a SQL-safe string

visit

public void visit(Limit obj)

Specified by:

visit in interface LanguageObjectVisitor

Overrides:

visit in class AbstractLanguageVisitor

visit

public void visit(OrderBy obj)

Specified by:

visit in interface LanguageObjectVisitor

Overrides:

visit in class HierarchyVisitor

visit

public void visit(SortSpecification obj)

Specified by:

visit in interface LanguageObjectVisitor

Overrides:

visit in class HierarchyVisitor

visit

public void visit(Function obj)

Specified by:

visit in interface LanguageObjectVisitor

Overrides:

visit in class HierarchyVisitor

visit

public void visit(AggregateFunction obj)

Specified by:

visit in interface LanguageObjectVisitor

Overrides:

visit in class HierarchyVisitor

getSolrQuery

public org.apache.solr.client.solrj.SolrQuery getSolrQuery()

isLimitInUse

public boolean isLimitInUse()

isCountStarInUse

public boolean isCountStarInUse()