Example usage for org.springframework.cache.interceptor CacheOperation getKeyGenerator

Introduction

In this page you can find the example usage for org.springframework.cache.interceptor CacheOperation getKeyGenerator.

Prototype

public String getKeyGenerator() 

Source Link

Usage

From source file:org.springframework.cache.interceptor.CacheAspectSupport.java

/**
 * Return the {@link CacheOperationMetadata} for the specified operation.
 * <p>Resolve the {@link CacheResolver} and the {@link KeyGenerator} to be
 * used for the operation.//from   w  ww  . j  a  va 2  s. com
 * @param operation the operation
 * @param method the method on which the operation is invoked
 * @param targetClass the target type
 * @return the resolved metadata for the operation
 */
protected CacheOperationMetadata getCacheOperationMetadata(CacheOperation operation, Method method,
        Class<?> targetClass) {

    CacheOperationCacheKey cacheKey = new CacheOperationCacheKey(operation, method, targetClass);
    CacheOperationMetadata metadata = this.metadataCache.get(cacheKey);
    if (metadata == null) {
        KeyGenerator operationKeyGenerator;
        if (StringUtils.hasText(operation.getKeyGenerator())) {
            operationKeyGenerator = getBean(operation.getKeyGenerator(), KeyGenerator.class);
        } else {
            operationKeyGenerator = getKeyGenerator();
        }
        CacheResolver operationCacheResolver;
        if (StringUtils.hasText(operation.getCacheResolver())) {
            operationCacheResolver = getBean(operation.getCacheResolver(), CacheResolver.class);
        } else if (StringUtils.hasText(operation.getCacheManager())) {
            CacheManager cacheManager = getBean(operation.getCacheManager(), CacheManager.class);
            operationCacheResolver = new SimpleCacheResolver(cacheManager);
        } else {
            operationCacheResolver = getCacheResolver();
            Assert.state(operationCacheResolver != null, "No CacheResolver/CacheManager set");
        }
        metadata = new CacheOperationMetadata(operation, method, targetClass, operationKeyGenerator,
                operationCacheResolver);
        this.metadataCache.put(cacheKey, metadata);
    }
    return metadata;
}

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