/*
* JBoss, Home of Professional Open Source.
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership. Some portions may be licensed
* to Red Hat, Inc. under one or more contributor license agreements.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA.
*/
package org.teiid.query.sql.lang;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import org.teiid.core.types.DataTypeManager;
import org.teiid.core.util.EquivalenceUtil;
import org.teiid.query.sql.symbol.ElementSymbol;
import org.teiid.query.sql.symbol.GroupSymbol;
import org.teiid.query.sql.util.SymbolMap;
public abstract class TableFunctionReference extends FromClause {
public static class ProjectedColumn {
private String name;
private String type;
private ElementSymbol symbol;
public ProjectedColumn(String name, String type) {
this.name = name;
this.type = type;
this.symbol = new ElementSymbol(name);
symbol.setType(DataTypeManager.getDataTypeClass(type));
}
protected ProjectedColumn() {
}
public ElementSymbol getSymbol() {
return symbol;
}
public String getName() {
return name;
}
public String getType() {
return type;
}
@Override
public boolean equals(Object obj) {
if (obj == this) {
return true;
}
if (!(obj instanceof ProjectedColumn)) {
return false;
}
ProjectedColumn other = (ProjectedColumn)obj;
return this.symbol.equals(other.symbol)
&& this.name.equals(other.name)
&& this.type.equals(other.type);
}
public int hashCode() {
return symbol.hashCode();
}
public ProjectedColumn copyTo(ProjectedColumn copy) {
copy.name = this.name;
copy.type = this.type;
copy.symbol = (ElementSymbol)this.symbol.clone();
return copy;
}
}
private GroupSymbol symbol;
private SymbolMap correlatedReferences;
public SymbolMap getCorrelatedReferences() {
return correlatedReferences;
}
public void setCorrelatedReferences(SymbolMap correlatedReferences) {
this.correlatedReferences = correlatedReferences;
}
public void copy(TableFunctionReference copy) {
copy.symbol = (GroupSymbol)this.symbol.clone();
if (correlatedReferences != null) {
copy.correlatedReferences = correlatedReferences.clone();
}
}
@Override
public void collectGroups(Collection groups) {
groups.add(getGroupSymbol());
}
/**
* Get name of this clause.
* @return Name of clause
*/
public String getName() {
return this.symbol.getName();
}
public String getOutputName() {
return this.symbol.getOutputName();
}
/**
* Get GroupSymbol representing the named subquery
* @return GroupSymbol representing the subquery
*/
public GroupSymbol getGroupSymbol() {
return this.symbol;
}
/**
* Reset the alias for this subquery from clause and it's pseudo-GroupSymbol.
* WARNING: this will modify the hashCode and equals semantics and will cause this object
* to be lost if currently in a HashMap or HashSet.
* @param name New name
* @since 4.3
*/
public void setName(String name) {
this.symbol = new GroupSymbol(name);
}
@Override
public boolean equals(Object obj) {
if (obj == this) {
return true;
}
if (!(obj instanceof TableFunctionReference)) {
return false;
}
TableFunctionReference other = (TableFunctionReference)obj;
return EquivalenceUtil.areEqual(symbol, other.symbol);
}
@Override
public int hashCode() {
return this.symbol.hashCode();
}
public abstract List<? extends ProjectedColumn> getColumns();
public List<ElementSymbol> getProjectedSymbols() {
ArrayList<ElementSymbol> symbols = new ArrayList<ElementSymbol>(getColumns().size());
for (ProjectedColumn col : getColumns()) {
symbols.add(col.getSymbol());
}
return symbols;
}
}