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 /*
  * Copyright 2011-2012 the original author or authors.
  *
  * 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 org.springframework.data.mongodb.repository.support;
import  org.springframework.util.Assert;
Base class to create repository implementations based on Querydsl.

Author(s):
Oliver Gierke
public abstract class QuerydslRepositorySupport {
	private final MongoOperations template;
	private final MappingContext<? extends MongoPersistentEntity<?>, ?> context;

Creates a new QuerydslRepositorySupport for the given MongoOperations.

Parameters:
operations must not be null
		Assert.notNull(operations);
		this. = operations;
		this. = operations.getConverter().getMappingContext();
	}

Returns a MongodbQuery for the given EntityPath. The collection being queried is derived from the entity metadata.

Parameters:
path
Returns:
	protected <T> MongodbQuery<T> from(final EntityPath<T> path) {
		Assert.notNull(path);
		return from(pathentity.getCollection());
	}

Returns a MongodbQuery for the given EntityPath querying the given collection.

Parameters:
path must not be null
collection must not be blank or null
Returns:
	protected <T> MongodbQuery<T> from(final EntityPath<T> pathString collection) {
		Assert.notNull(path);
		Assert.hasText(collection);
		return new SpringDataMongodbQuery<T>(path.getType(), collection);
	}
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