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java.lang.Object org.springframework.binding.expression.spel.SpringELExpression
public class SpringELExpression
A wrapper for a Spring EL Expression
allowing it to be used under the Spring
Binding Expression
abstraction.
Constructor Summary | |
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SpringELExpression(org.springframework.expression.Expression expression,
java.util.Map<java.lang.String,Expression> expressionVariables,
java.lang.Class<?> expectedType,
org.springframework.core.convert.ConversionService conversionService,
java.util.List<org.springframework.expression.PropertyAccessor> propertyAccessors)
Constructor for SpringELExpression. |
Method Summary | |
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java.lang.String |
getExpressionString()
Returns the original string used to create this expression, unmodified. |
java.lang.Object |
getValue(java.lang.Object rootObject)
Evaluate this expression in the provided context and return the result of evaluation. |
java.lang.Class<?> |
getValueType(java.lang.Object rootObject)
Returns the most general type that can be passed to the Expression.setValue(Object, Object) method for the given
context. |
void |
setValue(java.lang.Object rootObject,
java.lang.Object value)
Set this expression in the provided context to the value provided. |
java.lang.String |
toString()
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Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public SpringELExpression(org.springframework.expression.Expression expression, java.util.Map<java.lang.String,Expression> expressionVariables, java.lang.Class<?> expectedType, org.springframework.core.convert.ConversionService conversionService, java.util.List<org.springframework.expression.PropertyAccessor> propertyAccessors)
expression
- a parsed Spring EL expression instance. Must not be null.expressionVariables
- provides a mapping between variables names and parsed Spring EL expression instances.
This parameter is optional (may be null).expectedType
- the target type expected from the evaluation of the expression or null. This parameter is
optional (may be null).conversionService
- the Spring ConversionService instance to use for type conversionpropertyAccessors
- propertyAccessors for Spring EL to use when evaluating expressionsMethod Detail |
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public java.lang.String getExpressionString()
Expression
getExpressionString
in interface Expression
public java.lang.Object getValue(java.lang.Object rootObject) throws EvaluationException
Expression
getValue
in interface Expression
rootObject
- the context to evaluate this expression in
EvaluationException
- an exception occurred during expression evaluationpublic java.lang.Class<?> getValueType(java.lang.Object rootObject) throws EvaluationException
Expression
Expression.setValue(Object, Object)
method for the given
context.
getValueType
in interface Expression
rootObject
- the context to evaluate
null
if the type
information cannot be determined
EvaluationException
- an exception occurred during expression evaluationpublic void setValue(java.lang.Object rootObject, java.lang.Object value) throws EvaluationException
Expression
setValue
in interface Expression
rootObject
- the context on which the new value should be setvalue
- the new value to set
EvaluationException
- an exception occurred during expression evaluationpublic java.lang.String toString()
toString
in class java.lang.Object
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