Java SpelExpression类代码示例

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本文整理汇总了Java中org.springframework.expression.spel.standard.SpelExpression类的典型用法代码示例。如果您正苦于以下问题：Java SpelExpression类的具体用法？Java SpelExpression怎么用？Java SpelExpression使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。

SpelExpression类属于org.springframework.expression.spel.standard包，在下文中一共展示了SpelExpression类的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Java代码示例。

示例1: generateKey

import org.springframework.expression.spel.standard.SpelExpression; //导入依赖的package包/类
/**
 * generate the key based on SPel expression.
 */
protected Object generateKey(String key, ProceedingJoinPoint pjp) throws ExpirableCacheException {
	try {
		Object target = pjp.getTarget();
		Method method = ((MethodSignature) pjp.getSignature()).getMethod();
		Object[] allArgs = pjp.getArgs();
		if (StringUtils.hasText(key)) {
			CacheExpressionDataObject cacheExpressionDataObject = new CacheExpressionDataObject(method, allArgs, target, target.getClass());
			EvaluationContext evaluationContext = new StandardEvaluationContext(cacheExpressionDataObject);
			SpelExpression spelExpression = getExpression(key, method);
			spelExpression.setEvaluationContext(evaluationContext);
			return spelExpression.getValue();
		}
		return keyGenerator.generate(target, method, allArgs);
	} catch (Throwable t) {
		throw new ExpirableCacheException("### generate key failed");
	}
}

开发者ID:profullstack，项目名称:spring-seed，代码行数:21，代码来源:ExpirableCacheAspect.java

示例2: parseCheck

import org.springframework.expression.spel.standard.SpelExpression; //导入依赖的package包/类
/**
 * Parse the supplied expression and then create a string representation of the resultant AST, it should be the
 * expected value.
 *
 * @param expression the expression to parse
 * @param expectedStringFormOfAST the expected string form of the AST
 */
public void parseCheck(String expression, String expectedStringFormOfAST) {
	try {
		SpelExpression e = parser.parseRaw(expression);
		if (e != null && !e.toStringAST().equals(expectedStringFormOfAST)) {
			SpelUtilities.printAbstractSyntaxTree(System.err, e);
		}
		if (e == null) {
			fail("Parsed exception was null");
		}
		assertEquals("String form of AST does not match expected output", expectedStringFormOfAST, e.toStringAST());
	} catch (ParseException ee) {
		ee.printStackTrace();
		fail("Unexpected Exception: " + ee.getMessage());
	}
}

开发者ID:langtianya，项目名称:spring4-understanding，代码行数:23，代码来源:ParsingTests.java

示例3: resolve

import org.springframework.expression.spel.standard.SpelExpression; //导入依赖的package包/类
@Override
public SpelCriteria resolve(KeyValueQuery<?> query) {

	if (query.getCriteria() == null) {
		return null;
	}

	if (query.getCriteria() instanceof SpelExpression) {
		return new SpelCriteria((SpelExpression) query.getCriteria());
	}

	if (query.getCriteria() instanceof String) {
		return new SpelCriteria(parser.parseRaw((String) query.getCriteria()));
	}

	if (query.getCriteria() instanceof SpelCriteria) {
		return (SpelCriteria) query.getCriteria();
	}

	throw new IllegalArgumentException("Cannot create SpelCriteria for " + query.getCriteria());
}

开发者ID:spring-projects，项目名称:spring-data-keyvalue，代码行数:22，代码来源:SpelCriteriaAccessor.java

示例4: createQueryForMethodWithArgs

import org.springframework.expression.spel.standard.SpelExpression; //导入依赖的package包/类
private KeyValueQuery<SpelExpression> createQueryForMethodWithArgs(String methodName, Object... args)
		throws NoSuchMethodException, SecurityException {

	Class<?>[] argTypes = new Class<?>[args.length];
	if (!ObjectUtils.isEmpty(args)) {

		for (int i = 0; i < args.length; i++) {
			argTypes[i] = args[i].getClass();
		}
	}

	Method method = PersonRepository.class.getMethod(methodName, argTypes);
	doReturn(Person.class).when(metadataMock).getReturnedDomainClass(method);

	PartTree partTree = new PartTree(method.getName(), method.getReturnType());
	SpelQueryCreator creator = new SpelQueryCreator(partTree, new ParametersParameterAccessor(
			new QueryMethod(method, metadataMock, new SpelAwareProxyProjectionFactory()).getParameters(), args));

	KeyValueQuery<SpelExpression> q = creator.createQuery();
	q.getCriteria().setEvaluationContext(new StandardEvaluationContext(args));

	return q;
}

开发者ID:spring-projects，项目名称:spring-data-keyvalue，代码行数:24，代码来源:SpelQueryCreatorUnitTests.java

示例5: checkConstantList

import org.springframework.expression.spel.standard.SpelExpression; //导入依赖的package包/类
private void checkConstantList(String expressionText, boolean expectedToBeConstant) {
	SpelExpressionParser parser = new SpelExpressionParser();
	SpelExpression expression = (SpelExpression) parser.parseExpression(expressionText);
	SpelNode node = expression.getAST();
	assertTrue(node instanceof InlineList);
	InlineList inlineList = (InlineList) node;
	if (expectedToBeConstant) {
		assertTrue(inlineList.isConstant());
	}
	else {
		assertFalse(inlineList.isConstant());
	}
}

开发者ID:langtianya，项目名称:spring4-understanding，代码行数:14，代码来源:ListTests.java

示例6: testConstructorInvocation06

import org.springframework.expression.spel.standard.SpelExpression; //导入依赖的package包/类
@Test
public void testConstructorInvocation06() throws Exception {
	// repeated evaluation to drive use of cached executor
	SpelExpression expr = (SpelExpression) parser.parseExpression("new String('wibble')");
	String newString = expr.getValue(String.class);
	assertEquals("wibble", newString);
	newString = expr.getValue(String.class);
	assertEquals("wibble", newString);

	// not writable
	assertFalse(expr.isWritable(new StandardEvaluationContext()));

	// ast
	assertEquals("new String('wibble')", expr.toStringAST());
}

开发者ID:langtianya，项目名称:spring4-understanding，代码行数:16，代码来源:EvaluationTests.java

示例7: testTypeReferencesAndQualifiedIdentifierCaching

import org.springframework.expression.spel.standard.SpelExpression; //导入依赖的package包/类
@Test
public void testTypeReferencesAndQualifiedIdentifierCaching() throws Exception {
	SpelExpression expr = (SpelExpression) parser.parseExpression("T(java.lang.String)");
	assertFalse(expr.isWritable(new StandardEvaluationContext()));
	assertEquals("T(java.lang.String)", expr.toStringAST());
	assertEquals(String.class, expr.getValue(Class.class));
	// use cached QualifiedIdentifier:
	assertEquals("T(java.lang.String)", expr.toStringAST());
	assertEquals(String.class, expr.getValue(Class.class));
}

开发者ID:langtianya，项目名称:spring4-understanding，代码行数:11，代码来源:EvaluationTests.java

示例8: operatorVariants

import org.springframework.expression.spel.standard.SpelExpression; //导入依赖的package包/类
@Test
public void operatorVariants() throws Exception {
	SpelExpression expr = (SpelExpression)parser.parseExpression("#a < #b");
	EvaluationContext ctx = new StandardEvaluationContext();
	ctx.setVariable("a", (short)3);
	ctx.setVariable("b", (short)6);
	assertTrue(expr.getValue(ctx, Boolean.class));
	ctx.setVariable("b", (byte)6);
	assertTrue(expr.getValue(ctx, Boolean.class));
	ctx.setVariable("a", (byte)9);
	ctx.setVariable("b", (byte)6);
	assertFalse(expr.getValue(ctx, Boolean.class));
	ctx.setVariable("a", 10L);
	ctx.setVariable("b", (short)30);
	assertTrue(expr.getValue(ctx, Boolean.class));
	ctx.setVariable("a", (byte)3);
	ctx.setVariable("b", (short)30);
	assertTrue(expr.getValue(ctx, Boolean.class));
	ctx.setVariable("a", (byte)3);
	ctx.setVariable("b", 30L);
	assertTrue(expr.getValue(ctx, Boolean.class));
	ctx.setVariable("a", (byte)3);
	ctx.setVariable("b", 30f);
	assertTrue(expr.getValue(ctx, Boolean.class));
	ctx.setVariable("a", new BigInteger("10"));
	ctx.setVariable("b", new BigInteger("20"));
	assertTrue(expr.getValue(ctx, Boolean.class));
}

开发者ID:langtianya，项目名称:spring4-understanding，代码行数:29，代码来源:EvaluationTests.java

示例9: testOperatorNames

import org.springframework.expression.spel.standard.SpelExpression; //导入依赖的package包/类
@Test
public void testOperatorNames() throws Exception {
	Operator node = getOperatorNode((SpelExpression)parser.parseExpression("1==3"));
	assertEquals("==",node.getOperatorName());

	node = getOperatorNode((SpelExpression)parser.parseExpression("1!=3"));
	assertEquals("!=",node.getOperatorName());

	node = getOperatorNode((SpelExpression)parser.parseExpression("3/3"));
	assertEquals("/",node.getOperatorName());

	node = getOperatorNode((SpelExpression)parser.parseExpression("3+3"));
	assertEquals("+",node.getOperatorName());

	node = getOperatorNode((SpelExpression)parser.parseExpression("3-3"));
	assertEquals("-",node.getOperatorName());

	node = getOperatorNode((SpelExpression)parser.parseExpression("3<4"));
	assertEquals("<",node.getOperatorName());

	node = getOperatorNode((SpelExpression)parser.parseExpression("3<=4"));
	assertEquals("<=",node.getOperatorName());

	node = getOperatorNode((SpelExpression)parser.parseExpression("3*4"));
	assertEquals("*",node.getOperatorName());

	node = getOperatorNode((SpelExpression)parser.parseExpression("3%4"));
	assertEquals("%",node.getOperatorName());

	node = getOperatorNode((SpelExpression)parser.parseExpression("3>=4"));
	assertEquals(">=",node.getOperatorName());

	node = getOperatorNode((SpelExpression)parser.parseExpression("3 between 4"));
	assertEquals("between",node.getOperatorName());

	node = getOperatorNode((SpelExpression)parser.parseExpression("3 ^ 4"));
	assertEquals("^",node.getOperatorName());
}

开发者ID:langtianya，项目名称:spring4-understanding，代码行数:39，代码来源:OperatorTests.java

示例10: checkConstantMap

import org.springframework.expression.spel.standard.SpelExpression; //导入依赖的package包/类
private void checkConstantMap(String expressionText, boolean expectedToBeConstant) {
	SpelExpressionParser parser = new SpelExpressionParser();
	SpelExpression expression = (SpelExpression) parser.parseExpression(expressionText);
	SpelNode node = expression.getAST();
	assertTrue(node instanceof InlineMap);
	InlineMap inlineMap = (InlineMap) node;
	if (expectedToBeConstant) {
		assertTrue(inlineMap.isConstant());
	}
	else {
		assertFalse(inlineMap.isConstant());
	}
}

开发者ID:langtianya，项目名称:spring4-understanding，代码行数:14，代码来源:MapTests.java

示例11: testUtilities

import org.springframework.expression.spel.standard.SpelExpression; //导入依赖的package包/类
@Test
	public void testUtilities() throws ParseException {
		SpelExpression expr = (SpelExpression)parser.parseExpression("3+4+5+6+7-2");
		ByteArrayOutputStream baos = new ByteArrayOutputStream();
		PrintStream ps = new PrintStream(baos);
		SpelUtilities.printAbstractSyntaxTree(ps, expr);
		ps.flush();
		String s = baos.toString();
//		===> Expression '3+4+5+6+7-2' - AST start
//		OperatorMinus  value:(((((3 + 4) + 5) + 6) + 7) - 2)  #children:2
//		  OperatorPlus  value:((((3 + 4) + 5) + 6) + 7)  #children:2
//		    OperatorPlus  value:(((3 + 4) + 5) + 6)  #children:2
//		      OperatorPlus  value:((3 + 4) + 5)  #children:2
//		        OperatorPlus  value:(3 + 4)  #children:2
//		          CompoundExpression  value:3
//		            IntLiteral  value:3
//		          CompoundExpression  value:4
//		            IntLiteral  value:4
//		        CompoundExpression  value:5
//		          IntLiteral  value:5
//		      CompoundExpression  value:6
//		        IntLiteral  value:6
//		    CompoundExpression  value:7
//		      IntLiteral  value:7
//		  CompoundExpression  value:2
//		    IntLiteral  value:2
//		===> Expression '3+4+5+6+7-2' - AST end
		assertTrue(s.contains("===> Expression '3+4+5+6+7-2' - AST start"));
		assertTrue(s.contains(" OpPlus  value:((((3 + 4) + 5) + 6) + 7)  #children:2"));
	}

开发者ID:langtianya，项目名称:spring4-understanding，代码行数:31，代码来源:ReflectionHelperTests.java

示例12: projectionTypeDescriptors_1

import org.springframework.expression.spel.standard.SpelExpression; //导入依赖的package包/类
@Test
public void projectionTypeDescriptors_1() throws Exception {
	StandardEvaluationContext ctx = new StandardEvaluationContext(new C());
	SpelExpressionParser parser = new SpelExpressionParser();
	String el1 = "ls.![#this.equals('abc')]";
	SpelExpression exp = parser.parseRaw(el1);
	List<?> value = (List<?>) exp.getValue(ctx);
	// value is list containing [true,false]
	assertEquals(Boolean.class, value.get(0).getClass());
	TypeDescriptor evaluated = exp.getValueTypeDescriptor(ctx);
	assertEquals(null, evaluated.getElementTypeDescriptor());
}

开发者ID:langtianya，项目名称:spring4-understanding，代码行数:13，代码来源:SpelReproTests.java

示例13: projectionTypeDescriptors_2

import org.springframework.expression.spel.standard.SpelExpression; //导入依赖的package包/类
@Test
public void projectionTypeDescriptors_2() throws Exception {
	StandardEvaluationContext ctx = new StandardEvaluationContext(new C());
	SpelExpressionParser parser = new SpelExpressionParser();
	String el1 = "as.![#this.equals('abc')]";
	SpelExpression exp = parser.parseRaw(el1);
	Object[] value = (Object[]) exp.getValue(ctx);
	// value is array containing [true,false]
	assertEquals(Boolean.class, value[0].getClass());
	TypeDescriptor evaluated = exp.getValueTypeDescriptor(ctx);
	assertEquals(Boolean.class, evaluated.getElementTypeDescriptor().getType());
}

开发者ID:langtianya，项目名称:spring4-understanding，代码行数:13，代码来源:SpelReproTests.java

示例14: projectionTypeDescriptors_3

import org.springframework.expression.spel.standard.SpelExpression; //导入依赖的package包/类
@Test
public void projectionTypeDescriptors_3() throws Exception {
	StandardEvaluationContext ctx = new StandardEvaluationContext(new C());
	SpelExpressionParser parser = new SpelExpressionParser();
	String el1 = "ms.![key.equals('abc')]";
	SpelExpression exp = parser.parseRaw(el1);
	List<?> value = (List<?>) exp.getValue(ctx);
	// value is list containing [true,false]
	assertEquals(Boolean.class, value.get(0).getClass());
	TypeDescriptor evaluated = exp.getValueTypeDescriptor(ctx);
	assertEquals(null, evaluated.getElementTypeDescriptor());
}

开发者ID:langtianya，项目名称:spring4-understanding，代码行数:13，代码来源:SpelReproTests.java

示例15: greaterThanWithNulls_SPR7840

import org.springframework.expression.spel.standard.SpelExpression; //导入依赖的package包/类
@Test
public void greaterThanWithNulls_SPR7840() throws Exception {
	List<D> list = new ArrayList<D>();
	list.add(new D("aaa"));
	list.add(new D("bbb"));
	list.add(new D(null));
	list.add(new D("ccc"));
	list.add(new D(null));
	list.add(new D("zzz"));

	StandardEvaluationContext ctx = new StandardEvaluationContext(list);
	SpelExpressionParser parser = new SpelExpressionParser();

	String el1 = "#root.?[a < 'hhh']";
	SpelExpression exp = parser.parseRaw(el1);
	Object value = exp.getValue(ctx);
	assertEquals("[D(aaa), D(bbb), D(null), D(ccc), D(null)]", value.toString());

	String el2 = "#root.?[a > 'hhh']";
	SpelExpression exp2 = parser.parseRaw(el2);
	Object value2 = exp2.getValue(ctx);
	assertEquals("[D(zzz)]", value2.toString());

	// trim out the nulls first
	String el3 = "#root.?[a!=null].?[a < 'hhh']";
	SpelExpression exp3 = parser.parseRaw(el3);
	Object value3 = exp3.getValue(ctx);
	assertEquals("[D(aaa), D(bbb), D(ccc)]", value3.toString());
}

开发者ID:langtianya，项目名称:spring4-understanding，代码行数:30，代码来源:SpelReproTests.java

示例16: reservedWordProperties_9862

import org.springframework.expression.spel.standard.SpelExpression; //导入依赖的package包/类
@Test
public void reservedWordProperties_9862() throws Exception {
	StandardEvaluationContext ctx = new StandardEvaluationContext();
	SpelExpressionParser parser = new SpelExpressionParser();
	SpelExpression expression = parser.parseRaw("T(org.springframework.expression.spel.testresources.le.div.mod.reserved.Reserver).CONST");
	Object value = expression.getValue(ctx);
	assertEquals(value, Reserver.CONST);
}

开发者ID:langtianya，项目名称:spring4-understanding，代码行数:9，代码来源:SpelReproTests.java

示例17: array

import org.springframework.expression.spel.standard.SpelExpression; //导入依赖的package包/类
@Test
public void array() {
	ExpressionParser parser = new SpelExpressionParser();
	StandardEvaluationContext context = new StandardEvaluationContext();
	Expression expression = null;
	Object result = null;

	expression = parser.parseExpression("new java.lang.Long[0].class");
	result = expression.getValue(context, "");
	assertEquals("Equal assertion failed: ", "class [Ljava.lang.Long;", result.toString());

	expression = parser.parseExpression("T(java.lang.Long[])");
	result = expression.getValue(context, "");
	assertEquals("Equal assertion failed: ", "class [Ljava.lang.Long;", result.toString());

	expression = parser.parseExpression("T(java.lang.String[][][])");
	result = expression.getValue(context, "");
	assertEquals("Equal assertion failed: ", "class [[[Ljava.lang.String;", result.toString());
	assertEquals("T(java.lang.String[][][])", ((SpelExpression) expression).toStringAST());

	expression = parser.parseExpression("new int[0].class");
	result = expression.getValue(context, "");
	assertEquals("Equal assertion failed: ", "class [I", result.toString());

	expression = parser.parseExpression("T(int[][])");
	result = expression.getValue(context, "");
	assertEquals("class [[I", result.toString());
}

开发者ID:langtianya，项目名称:spring4-understanding，代码行数:29，代码来源:SpelReproTests.java

示例18: functionReferenceNonCompilableArguments_SPR12359

import org.springframework.expression.spel.standard.SpelExpression; //导入依赖的package包/类
@Test
public void functionReferenceNonCompilableArguments_SPR12359() throws Exception {
	StandardEvaluationContext context = new StandardEvaluationContext(new  Object[] { "1" });
	context.registerFunction("negate", SomeCompareMethod2.class.getDeclaredMethod(
			"negate", Integer.TYPE));
	context.setVariable("arg", "2");
	int[] ints = new int[]{1,2,3};
	context.setVariable("ints",ints);

	expression = parser.parseExpression("#negate(#ints.?[#this<2][0])");
	assertEquals("-1",expression.getValue(context, Integer.class).toString());
	// Selection isn't compilable.
	assertFalse(((SpelNodeImpl)((SpelExpression)expression).getAST()).isCompilable());
}

开发者ID:langtianya，项目名称:spring4-understanding，代码行数:15，代码来源:SpelCompilationCoverageTests.java

示例19: failsWhenSettingContextForExpression_SPR12326

import org.springframework.expression.spel.standard.SpelExpression; //导入依赖的package包/类
@Test
public void failsWhenSettingContextForExpression_SPR12326() {
	SpelExpressionParser parser = new SpelExpressionParser(
			new SpelParserConfiguration(SpelCompilerMode.IMMEDIATE, getClass().getClassLoader()));
	Person3 person = new Person3("foo", 1);
	SpelExpression expression = parser.parseRaw("#it?.age?.equals([0])");
	StandardEvaluationContext context = new StandardEvaluationContext(new Object[] { 1 });
	context.setVariable("it", person);
	expression.setEvaluationContext(context);
	assertTrue(expression.getValue(Boolean.class));
	assertTrue(expression.getValue(Boolean.class));
	assertCanCompile(expression);
	assertTrue(expression.getValue(Boolean.class));
}

开发者ID:langtianya，项目名称:spring4-understanding，代码行数:15，代码来源:SpelCompilationCoverageTests.java

示例20: listNodes

import org.springframework.expression.spel.standard.SpelExpression; //导入依赖的package包/类
public <T> Collection<T> listNodes(Collection<T> collection, UISearchQuery searchQuery) {
    final String criteria = searchQuery.getCriterias();
    final List<UISearchQuery.SearchOrder> orders = firstNonNull(searchQuery.getOrders(), Collections.emptyList());
    //init sorting
    Comparator<T> comparing = (t1, t2) -> 0;
    for (UISearchQuery.SearchOrder order : orders) {
        comparing = comparing.thenComparing((nodeInfo1, nodeInfo2) -> {
            Object value1 = getValue(nodeInfo1, order.getField());
            Object value2 = getValue(nodeInfo2, order.getField());

            Comparable v1 = value1 instanceof Comparable ? (Comparable) value1 : null;
            Comparable v2 = value2 instanceof Comparable ? (Comparable) value2 : null;
            @SuppressWarnings("unchecked") int result = Comparables.compare(v1, v2);
            return order.getOrder() == ASC ? result : -result;
        });
    }

    final List<Criterion<T>> criterions = new ArrayList<>();
    if (StringUtils.hasText(criteria)) {
        criterions.add(fromPredicate(w -> {
            try {
                SpelExpression expr = parser.parseRaw(criteria);
                return (Boolean) expr.getValue(w);
            } catch (Exception e) {
                log.error("error during parsing '" + criteria + "', '" + w + "'", e);
                return false;
            }
        }));
    }

    criterions.add(topN(comparing, searchQuery.getPage() * searchQuery.getSize(), searchQuery.getSize()));

    final Criterion<T> compositeCriteria =
            criterions.stream().reduce(c -> c, (c1, c2) -> (s -> c2.apply(c1.apply(s))));

    return compositeCriteria.apply(collection.stream()).collect(Collectors.toList());
}

开发者ID:codeabovelab，项目名称:haven-platform，代码行数:38，代码来源:FilterApi.java

注：本文中的org.springframework.expression.spel.standard.SpelExpression类示例整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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Java SpelExpression类代码示例

示例1: generateKey

示例2: parseCheck

示例3: resolve

示例4: createQueryForMethodWithArgs

示例5: checkConstantList

示例6: testConstructorInvocation06

示例7: testTypeReferencesAndQualifiedIdentifierCaching

示例8: operatorVariants

示例9: testOperatorNames

示例10: checkConstantMap

示例11: testUtilities

示例12: projectionTypeDescriptors_1

示例13: projectionTypeDescriptors_2

示例14: projectionTypeDescriptors_3

示例15: greaterThanWithNulls_SPR7840

示例16: reservedWordProperties_9862

示例17: array

示例18: functionReferenceNonCompilableArguments_SPR12359

示例19: failsWhenSettingContextForExpression_SPR12326

示例20: listNodes

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