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/*
* Copyright 2004-2011 H2 Group.
* Copyright 2011 James Moger.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.iciql;
import com.iciql.TableDefinition.FieldDefinition;
/**
* This class represents a column of a table in a query.
*
* @param <T> the table data type
*/
class SelectColumn<T> {
private SelectTable<T> selectTable;
private FieldDefinition fieldDef;
SelectColumn(SelectTable<T> table, FieldDefinition fieldDef) {
this.selectTable = table;
this.fieldDef = fieldDef;
}
void appendSQL(SQLStatement stat) {
if (selectTable.getQuery().isJoin()) {
stat.appendSQL(selectTable.getAs() + "." + fieldDef.columnName);
} else {
stat.appendColumn(fieldDef.columnName);
}
}
FieldDefinition getFieldDefinition() {
return fieldDef;
}
SelectTable<T> getSelectTable() {
return selectTable;
}
Object getCurrentValue() {
return fieldDef.getValue(selectTable.getCurrent());
}
}
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