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/*
* Copyright 2007-2012 Amazon Technologies, Inc. or its affiliates.
* Amazon, Amazon.com and Carbonado are trademarks or registered trademarks
* of Amazon Technologies, Inc. or its affiliates. All rights reserved.
*
* 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.amazon.carbonado.repo.jdbc;
import com.amazon.carbonado.Storable;
import com.amazon.carbonado.filter.FilterValues;
/**
* Simple DOM representing a SQL statement.
*
* @author Brian S O'Neill
* @see SQLStatementBuilder
*/
abstract class SQLStatement<S extends Storable> {
public abstract int maxLength();
/**
* Builds a statement string from the given values.
*
* @param initialCapacity expected size of finished string
* length. Should be value returned from maxLength.
* @param filterValues values may be needed to build complete statement
*/
public String buildStatement(int initialCapacity, FilterValues<S> filterValues) {
StringBuilder b = new StringBuilder(initialCapacity);
this.appendTo(b, filterValues);
return b.toString();
}
public abstract void appendTo(StringBuilder b, FilterValues<S> filterValues);
/**
* Just used for debugging.
*/
@Override
public String toString() {
StringBuilder b = new StringBuilder();
appendTo(b, null);
return b.toString();
}
}
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