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java.lang.Objectorg.geotools.filter.AreaFunction
Field Summary |
Fields inherited from interface org.geotools.filter.ExpressionType |
ATTRIBUTE, ATTRIBUTE_DOUBLE, ATTRIBUTE_GEOMETRY, ATTRIBUTE_INTEGER, ATTRIBUTE_STRING, ATTRIBUTE_UNDECLARED, FUNCTION, LITERAL_DOUBLE, LITERAL_GEOMETRY, LITERAL_INTEGER, LITERAL_STRING, MATH_ADD, MATH_DIVIDE, MATH_MULTIPLY, MATH_SUBTRACT |
Constructor Summary | |
AreaFunction()
Creates a new instance of AreaFunction |
Method Summary | |
void |
accept(FilterVisitor visitor)
Used by FilterVisitors to perform some action on this filter instance. |
int |
getArgCount()
Returns the number of arguments this |
Expression[] |
getArgs()
Gets the arguments to be evaluated by this function. |
java.util.Map |
getImplementationHints()
Returns the implementation hints. |
java.lang.String |
getName()
Gets the name of this function. |
short |
getType()
Gets the type of this expression. |
java.lang.Object |
getValue(Feature feature)
Returns a value for this expression. |
void |
setArgs(Expression[] args)
Sets the arguments to be evaluated by this function. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public AreaFunction()
Method Detail |
public short getType()
FunctionExpression
getType
in interface FunctionExpression
public java.lang.Object getValue(Feature feature)
getValue
in interface Expression
feature
- Specified feature to use when returning value.
public int getArgCount()
FunctionExpression
getArgCount
in interface FunctionExpression
public java.lang.String getName()
FunctionExpression
getName
in interface FunctionExpression
public void setArgs(Expression[] args)
FunctionExpression
setArgs
in interface FunctionExpression
args
- an array of expressions to be evaluated.public void accept(FilterVisitor visitor)
accept
in interface Expression
visitor
- The visitor which requires access to this filter,
the method must call visitor.visit(this);public Expression[] getArgs()
FunctionExpression
getArgs
in interface FunctionExpression
public java.util.Map getImplementationHints()
getImplementationHints
in interface Factory
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