Java Code Examples for org.springframework.expression.PropertyAccessor#canWrite()

The following examples show how to use org.springframework.expression.PropertyAccessor#canWrite() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: PropertyOrFieldReference.java    From spring-analysis-note with MIT License 6 votes vote down vote up
public boolean isWritableProperty(String name, TypedValue contextObject, EvaluationContext evalContext)
		throws EvaluationException {

	Object value = contextObject.getValue();
	if (value != null) {
		List<PropertyAccessor> accessorsToTry =
				getPropertyAccessorsToTry(contextObject.getValue(), evalContext.getPropertyAccessors());
		for (PropertyAccessor accessor : accessorsToTry) {
			try {
				if (accessor.canWrite(evalContext, value, name)) {
					return true;
				}
			}
			catch (AccessException ex) {
				// let others try
			}
		}
	}
	return false;
}
 
Example 2
Source File: PropertyOrFieldReference.java    From java-technology-stack with MIT License 6 votes vote down vote up
public boolean isWritableProperty(String name, TypedValue contextObject, EvaluationContext evalContext)
		throws EvaluationException {

	Object value = contextObject.getValue();
	if (value != null) {
		List<PropertyAccessor> accessorsToTry =
				getPropertyAccessorsToTry(contextObject.getValue(), evalContext.getPropertyAccessors());
		for (PropertyAccessor accessor : accessorsToTry) {
			try {
				if (accessor.canWrite(evalContext, value, name)) {
					return true;
				}
			}
			catch (AccessException ex) {
				// let others try
			}
		}
	}
	return false;
}
 
Example 3
Source File: PropertyOrFieldReference.java    From lams with GNU General Public License v2.0 6 votes vote down vote up
public boolean isWritableProperty(String name, TypedValue contextObject, EvaluationContext evalContext)
		throws EvaluationException {

	List<PropertyAccessor> accessorsToTry =
			getPropertyAccessorsToTry(contextObject.getValue(), evalContext.getPropertyAccessors());
	if (accessorsToTry != null) {
		for (PropertyAccessor accessor : accessorsToTry) {
			try {
				if (accessor.canWrite(evalContext, contextObject.getValue(), name)) {
					return true;
				}
			}
			catch (AccessException ex) {
				// let others try
			}
		}
	}
	return false;
}
 
Example 4
Source File: PropertyOrFieldReference.java    From spring4-understanding with Apache License 2.0 6 votes vote down vote up
public boolean isWritableProperty(String name, TypedValue contextObject, EvaluationContext evalContext)
		throws EvaluationException {

	List<PropertyAccessor> accessorsToTry =
			getPropertyAccessorsToTry(contextObject.getValue(), evalContext.getPropertyAccessors());
	if (accessorsToTry != null) {
		for (PropertyAccessor accessor : accessorsToTry) {
			try {
				if (accessor.canWrite(evalContext, contextObject.getValue(), name)) {
					return true;
				}
			}
			catch (AccessException ex) {
				// let others try
			}
		}
	}
	return false;
}
 
Example 5
Source File: Indexer.java    From lams with GNU General Public License v2.0 5 votes vote down vote up
@Override
public void setValue(Object newValue) {
	Class<?> contextObjectClass = getObjectClass(this.targetObject);
	try {
		if (Indexer.this.cachedWriteName != null && Indexer.this.cachedWriteName.equals(this.name) &&
				Indexer.this.cachedWriteTargetType != null &&
				Indexer.this.cachedWriteTargetType.equals(contextObjectClass)) {
			// It is OK to use the cached accessor
			Indexer.this.cachedWriteAccessor.write(this.evaluationContext, this.targetObject, this.name, newValue);
			return;
		}
		List<PropertyAccessor> accessorsToTry =
				AstUtils.getPropertyAccessorsToTry(contextObjectClass, this.evaluationContext.getPropertyAccessors());
		if (accessorsToTry != null) {
			for (PropertyAccessor accessor : accessorsToTry) {
				if (accessor.canWrite(this.evaluationContext, this.targetObject, this.name)) {
					Indexer.this.cachedWriteName = this.name;
					Indexer.this.cachedWriteTargetType = contextObjectClass;
					Indexer.this.cachedWriteAccessor = accessor;
					accessor.write(this.evaluationContext, this.targetObject, this.name, newValue);
					return;
				}
			}
		}
	}
	catch (AccessException ex) {
		throw new SpelEvaluationException(getStartPosition(), ex, SpelMessage.EXCEPTION_DURING_PROPERTY_WRITE,
				this.name, ex.getMessage());
	}
}
 
Example 6
Source File: Indexer.java    From spring4-understanding with Apache License 2.0 5 votes vote down vote up
@Override
public void setValue(Object newValue) {
	Class<?> contextObjectClass = getObjectClass(this.targetObject);
	try {
		if (Indexer.this.cachedWriteName != null && Indexer.this.cachedWriteName.equals(this.name) &&
				Indexer.this.cachedWriteTargetType != null &&
				Indexer.this.cachedWriteTargetType.equals(contextObjectClass)) {
			// It is OK to use the cached accessor
			Indexer.this.cachedWriteAccessor.write(this.evaluationContext, this.targetObject, this.name, newValue);
			return;
		}
		List<PropertyAccessor> accessorsToTry =
				AstUtils.getPropertyAccessorsToTry(contextObjectClass, this.evaluationContext.getPropertyAccessors());
		if (accessorsToTry != null) {
			for (PropertyAccessor accessor : accessorsToTry) {
				if (accessor.canWrite(this.evaluationContext, this.targetObject, this.name)) {
					Indexer.this.cachedWriteName = this.name;
					Indexer.this.cachedWriteTargetType = contextObjectClass;
					Indexer.this.cachedWriteAccessor = accessor;
					accessor.write(this.evaluationContext, this.targetObject, this.name, newValue);
					return;
				}
			}
		}
	}
	catch (AccessException ex) {
		throw new SpelEvaluationException(getStartPosition(), ex, SpelMessage.EXCEPTION_DURING_PROPERTY_WRITE,
				this.name, ex.getMessage());
	}
}