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When processing DynamicSqlSource, evaluate param values in scripting …
…phase - Evaluated param values are stored in `ParameterMapping` and later used in DefaultParameterHandler - There is no change when processing RawSqlSource - Removed unused `injectionFilter` from TextSqlNode (mybatisgh-117) This should fix mybatis#2754 . This might also fix mybatis#206 and mybatis#575 , but with this patch, it still is not possible to invoke a method with parameter inside a parameter reference like `#{_parameter.mymethod(_parameter.value)}`. It might be possible to accept OGNL expression in a param reference (e.g. `#{${_parameter.mymethod(_parameter.value)}}`), but I'm not sure if that's a good idea.
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src/main/java/org/apache/ibatis/builder/ParameterMappingTokenHandler.java
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| /* | ||
| * Copyright 2009-2022 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 | ||
| * | ||
| * https://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. | ||
| */ | ||
|
|
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| package org.apache.ibatis.builder; | ||
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| import java.util.List; | ||
| import java.util.Map; | ||
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| import org.apache.ibatis.mapping.ParameterMapping; | ||
| import org.apache.ibatis.mapping.ParameterMode; | ||
| import org.apache.ibatis.parsing.TokenHandler; | ||
| import org.apache.ibatis.reflection.MetaClass; | ||
| import org.apache.ibatis.reflection.MetaObject; | ||
| import org.apache.ibatis.reflection.property.PropertyTokenizer; | ||
| import org.apache.ibatis.session.Configuration; | ||
| import org.apache.ibatis.type.JdbcType; | ||
|
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| public class ParameterMappingTokenHandler extends BaseBuilder implements TokenHandler { | ||
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| private static final String PARAMETER_PROPERTIES = "javaType,jdbcType,mode,numericScale,resultMap,typeHandler,jdbcTypeName"; | ||
| private final List<ParameterMapping> parameterMappings; | ||
| private final Class<?> parameterType; | ||
| private final MetaObject metaParameters; | ||
| private final Object parameterObject; | ||
| private final boolean paramExists; | ||
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| public ParameterMappingTokenHandler(List<ParameterMapping> parameterMappings, Configuration configuration, | ||
| Object parameterObject, Class<?> parameterType, Map<String, Object> additionalParameters, boolean paramExists) { | ||
| super(configuration); | ||
| this.parameterType = parameterObject == null | ||
| ? (parameterType == null ? Object.class : parameterType) | ||
| : parameterObject.getClass(); | ||
| this.metaParameters = configuration.newMetaObject(additionalParameters); | ||
| this.parameterObject = parameterObject; | ||
| this.paramExists = paramExists; | ||
| this.parameterMappings = parameterMappings; | ||
| } | ||
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| public ParameterMappingTokenHandler(List<ParameterMapping> parameterMappings, Configuration configuration, | ||
| Class<?> parameterType, | ||
| Map<String, Object> additionalParameters) { | ||
| super(configuration); | ||
| this.parameterType = parameterType; | ||
| this.metaParameters = configuration.newMetaObject(additionalParameters); | ||
| this.parameterObject = null; | ||
| this.paramExists = false; | ||
| this.parameterMappings = parameterMappings; | ||
| } | ||
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| public List<ParameterMapping> getParameterMappings() { | ||
| return parameterMappings; | ||
| } | ||
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| @Override | ||
| public String handleToken(String content) { | ||
| parameterMappings.add(buildParameterMapping(content)); | ||
| return "?"; | ||
| } | ||
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| private ParameterMapping buildParameterMapping(String content) { | ||
| Map<String, String> propertiesMap = parseParameterMapping(content); | ||
| String property = propertiesMap.get("property"); | ||
| PropertyTokenizer propertyTokenizer = new PropertyTokenizer(property); | ||
| Class<?> propertyType; | ||
| if (metaParameters.hasGetter(propertyTokenizer.getName())) { // issue #448 get type from additional params | ||
| propertyType = metaParameters.getGetterType(property); | ||
| } else if (typeHandlerRegistry.hasTypeHandler(parameterType)) { | ||
| propertyType = parameterType; | ||
| } else if (JdbcType.CURSOR.name().equals(propertiesMap.get("jdbcType"))) { | ||
| propertyType = java.sql.ResultSet.class; | ||
| } else if (property == null || Map.class.isAssignableFrom(parameterType)) { | ||
| propertyType = Object.class; | ||
| } else { | ||
| MetaClass metaClass = MetaClass.forClass(parameterType, configuration.getReflectorFactory()); | ||
| if (metaClass.hasGetter(property)) { | ||
| propertyType = metaClass.getGetterType(property); | ||
| } else { | ||
| propertyType = Object.class; | ||
| } | ||
| } | ||
| ParameterMapping.Builder builder = new ParameterMapping.Builder(configuration, property, propertyType); | ||
| Class<?> javaType = propertyType; | ||
| String typeHandlerAlias = null; | ||
| ParameterMode mode = null; | ||
| for (Map.Entry<String, String> entry : propertiesMap.entrySet()) { | ||
| String name = entry.getKey(); | ||
| String value = entry.getValue(); | ||
| if ("javaType".equals(name)) { | ||
| javaType = resolveClass(value); | ||
| builder.javaType(javaType); | ||
| } else if ("jdbcType".equals(name)) { | ||
| builder.jdbcType(resolveJdbcType(value)); | ||
| } else if ("mode".equals(name)) { | ||
| mode = resolveParameterMode(value); | ||
| builder.mode(mode); | ||
| } else if ("numericScale".equals(name)) { | ||
| builder.numericScale(Integer.valueOf(value)); | ||
| } else if ("resultMap".equals(name)) { | ||
| builder.resultMapId(value); | ||
| } else if ("typeHandler".equals(name)) { | ||
| typeHandlerAlias = value; | ||
| } else if ("jdbcTypeName".equals(name)) { | ||
| builder.jdbcTypeName(value); | ||
| } else if ("property".equals(name)) { | ||
| // Do Nothing | ||
| } else if ("expression".equals(name)) { | ||
| throw new BuilderException("Expression based parameters are not supported yet"); | ||
| } else { | ||
| throw new BuilderException("An invalid property '" + name + "' was found in mapping #{" + content | ||
| + "}. Valid properties are " + PARAMETER_PROPERTIES); | ||
| } | ||
| } | ||
| if (typeHandlerAlias != null) { | ||
| builder.typeHandler(resolveTypeHandler(javaType, typeHandlerAlias)); | ||
| } | ||
| if (!ParameterMode.OUT.equals(mode) && paramExists) { | ||
| if (metaParameters.hasGetter(propertyTokenizer.getName())) { | ||
| builder.value(metaParameters.getValue(property)); | ||
| } else if (parameterObject == null) { | ||
| builder.value(null); | ||
| } else if (typeHandlerRegistry.hasTypeHandler(parameterObject.getClass())) { | ||
| builder.value(parameterObject); | ||
| } else { | ||
| MetaObject metaObject = configuration.newMetaObject(parameterObject); | ||
| builder.value(metaObject.getValue(property)); | ||
| } | ||
| } | ||
| return builder.build(); | ||
| } | ||
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| private Map<String, String> parseParameterMapping(String content) { | ||
| try { | ||
| return new ParameterExpression(content); | ||
| } catch (BuilderException ex) { | ||
| throw ex; | ||
| } catch (Exception ex) { | ||
| throw new BuilderException("Parsing error was found in mapping #{" + content | ||
| + "}. Check syntax #{property|(expression), var1=value1, var2=value2, ...} ", ex); | ||
| } | ||
| } | ||
| } |
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