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java.lang.Object | +--org.apache.commons.jexl.parser.SimpleNode | +--org.apache.commons.jexl.parser.ASTSizeFunction
generalized size() function for all classes we can think of.
Field Summary |
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Fields inherited from class org.apache.commons.jexl.parser.SimpleNode |
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children, id, parent, parser |
Constructor Summary | |
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ASTSizeFunction(int id)
Create the node given an id. |
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ASTSizeFunction(Parser p,
int id)
Create a node with the given parser and id. |
Method Summary | |
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Object |
jjtAccept(ParserVisitor visitor,
Object data)
Accept the visitor. |
static int |
sizeOf(Object val)
Calculate the size of various types: Collection, Array, Map, String,
and anything that has a int size() method. |
Object |
value(JexlContext jc)
Gets the value of this node. |
Methods inherited from class org.apache.commons.jexl.parser.SimpleNode |
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childrenAccept, dump, execute, interpret, jjtAddChild, jjtClose, jjtGetChild, jjtGetNumChildren, jjtGetParent, jjtOpen, jjtSetParent, setValue, toString, toString |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
public ASTSizeFunction(int id)
id
- node id.public ASTSizeFunction(Parser p, int id)
p
- a parser.id
- node id.Method Detail |
public Object jjtAccept(ParserVisitor visitor, Object data)
jjtAccept
in interface Node
jjtAccept
in class SimpleNode
visitor
- a ParserVisitor
.data
- data to be passed along to the visitor.
ParserVisitor.visit(org.apache.commons.jexl.parser.SimpleNode, java.lang.Object)
public Object value(JexlContext jc) throws Exception
value
in class SimpleNode
jc
- the context to retrieve values from.
Exception
- when evaluating the operands fails.public static int sizeOf(Object val) throws Exception
size
of various types: Collection, Array, Map, String,
and anything that has a int size() method.
val
- the object to get the size of.
Exception
- if the size cannot be determined.
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