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ObjectExpressionAbstract
DefaultExpression
AttributeExpressionImpl
public class AttributeExpressionImpl
Defines a complex filter (could also be called logical filter). This filter holds one or more filters together and relates them logically in an internally defined manner.
Field Summary | |
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protected String |
attPath
Holds all sub filters of this filter. |
protected boolean |
lenient
Configures whether evaluate should return null if it cannot find a working property accessor, rather than throwing an exception (default behaviour). |
protected SimpleFeatureType |
schema
Used to validate attribute references to ensure they match the provided schema |
Fields inherited from class DefaultExpression |
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expressionType, permissiveConstruction |
Fields inherited from interface ExpressionType |
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ATTRIBUTE, ATTRIBUTE_DOUBLE, ATTRIBUTE_GEOMETRY, ATTRIBUTE_INTEGER, ATTRIBUTE_STRING, ATTRIBUTE_UNDECLARED, FUNCTION, LITERAL_DOUBLE, LITERAL_GEOMETRY, LITERAL_INTEGER, LITERAL_LONG, LITERAL_STRING, LITERAL_UNDECLARED, MATH_ADD, MATH_DIVIDE, MATH_MULTIPLY, MATH_SUBTRACT |
Fields inherited from interface Expression |
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NIL |
Constructor Summary | |
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AttributeExpressionImpl(Name name)
Constructor with full attribute name. |
protected |
AttributeExpressionImpl(SimpleFeatureType schema)
Constructor with the schema for this attribute. |
protected |
AttributeExpressionImpl(SimpleFeatureType schema,
String attPath)
Constructor with schema and path to the attribute. |
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AttributeExpressionImpl(String xpath)
Constructor with schema and path to the attribute. |
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AttributeExpressionImpl(String xpath,
Hints hints)
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AttributeExpressionImpl(String xpath,
NamespaceSupport namespaceContext)
Constructor with schema and path to the attribute. |
Method Summary | |
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Object |
accept(ExpressionVisitor visitor,
Object extraData)
Used by FilterVisitors to perform some action on this filter instance. |
boolean |
equals(Object obj)
Compares this filter to the specified object. |
Object |
evaluate(Object obj)
Gets the value of this property from the passed object. |
Object |
evaluate(Object obj,
Class target)
Gets the value of this attribute from the passed object. |
Object |
evaluate(SimpleFeature feature)
Gets the value of this attribute from the passed feature. |
String |
getAttributePath()
Deprecated. use getPropertyName() |
NamespaceSupport |
getNamespaceContext()
Returns namespace context information, or null if unavailable/inapplicable |
String |
getPropertyName()
Gets the path to the attribute to be evaluated by this expression. |
int |
hashCode()
Override of hashCode method. |
boolean |
isLenient()
Gets lenient property |
void |
setAttributePath(String attPath)
Deprecated. use setPropertyName(String) |
void |
setLenient(boolean lenient)
Sets lenient property. |
void |
setPropertyName(String attPath)
|
String |
toString()
Return this expression as a string. |
Methods inherited from class DefaultExpression |
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accept, getType, getValue, isAttributeExpression, isExpression, isFunctionExpression, isGeometryExpression, isLiteralExpression, isMathExpression, isMathExpression |
Methods inherited from class ExpressionAbstract |
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eval, eval |
Methods inherited from class Object |
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clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
Methods inherited from interface AttributeExpression |
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getValue |
Methods inherited from interface Expression |
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accept, getType |
Field Detail |
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protected String attPath
protected SimpleFeatureType schema
protected boolean lenient
Constructor Detail |
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protected AttributeExpressionImpl(SimpleFeatureType schema)
schema
- The schema for this attribute.public AttributeExpressionImpl(String xpath)
xpath
- the String xpath to the attribute.public AttributeExpressionImpl(Name name)
name
- Attribute Name.public AttributeExpressionImpl(String xpath, NamespaceSupport namespaceContext)
xpath
- the String xpath to the attribute.namespaceContext
- Defining the prefix information for the xpath expressionpublic AttributeExpressionImpl(String xpath, Hints hints)
xpath
- xpath expressionhints
- Hints passed to the property accessor during evaulationprotected AttributeExpressionImpl(SimpleFeatureType schema, String attPath) throws IllegalFilterException
schema
- The initial (required) sub filter.attPath
- the xpath to the attribute.
IllegalFilterException
- If the attribute path is not in the
schema.Method Detail |
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public NamespaceSupport getNamespaceContext()
PropertyName
getNamespaceContext
in interface PropertyName
public final void setAttributePath(String attPath) throws IllegalFilterException
setPropertyName(String)
setAttributePath
in interface AttributeExpression
attPath
- The initial (required) sub filter.
IllegalFilterException
- If the attribute path is not in the
schema.public final String getAttributePath()
getPropertyName()
getPropertyName()
.
getAttributePath
in interface AttributeExpression
public String getPropertyName()
PropertyName.getPropertyName()
getPropertyName
in interface PropertyName
public void setPropertyName(String attPath)
public Object evaluate(SimpleFeature feature)
evaluate
in class DefaultExpression
feature
- Feature from which to extract attribute value.
public Object evaluate(Object obj)
evaluate
in interface Expression
evaluate
in class DefaultExpression
obj
- Object from which we need to extract a property value.public Object evaluate(Object obj, Class target)
evaluate
in interface Expression
evaluate
in class ExpressionAbstract
obj
- Object from which to extract attribute value.target
- Target Class
context
.public String toString()
toString
in class Object
public boolean equals(Object obj)
equals
in class Object
obj
- - the object to compare this ExpressionAttribute against.
public int hashCode()
hashCode
in class Object
public Object accept(ExpressionVisitor visitor, Object extraData)
accept
in interface Expression
visitor
- The visitor which requires access to this filter, the
method must call visitor.visit(this);public void setLenient(boolean lenient)
lenient
- public boolean isLenient()
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