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Evaluating Software Design Patterns — the "Gang of Four" patterns implemented in Java 6 |
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java.lang.Object dk.rode.thesis.interpreter.Expression.SymbolIdiom
public static final class Expression.SymbolIdiom
The symbol idiom ensures that cyclic expression
references will be represented correctly in
symbolic
representation starting from a given expression.
Context.reset()
,
Context.touch(Expression)
Constructor Summary | |
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private |
Expression.SymbolIdiom()
Private off-limit constructor. |
Method Summary | |
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static StringBuilder |
asSymbol(Context context,
Expression<?> parent,
Expression<?> child)
See Expression.asSymbol(Context) . |
static StringBuilder |
asSymbol(Context context,
Expression<?> parent,
Expression<?> child,
StringBuilder sb)
See Expression.asSymbol(Context) . |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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private Expression.SymbolIdiom()
Method Detail |
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public static final StringBuilder asSymbol(Context context, Expression<?> parent, Expression<?> child) throws ExpressionException
Expression.asSymbol(Context)
.
context
- The context to use; cannot be null.parent
- The parent expression; cannot be null.child
- The child expression; cannot be null.
NullPointerException
- If either argument is null.
ExpressionException
- If the symbol cannot be generated.public static final StringBuilder asSymbol(Context context, Expression<?> parent, Expression<?> child, StringBuilder sb) throws ExpressionException
Expression.asSymbol(Context)
.
context
- The context to use; cannot be null.parent
- The parent expression; cannot be null.child
- The child expression; cannot be null.sb
- The string builder to append the
symbolic representation to; cannot be null.
sb
; never null.
NullPointerException
- If either argument is null.
ExpressionException
- If the symbol cannot be generated.
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Gunni Rode / rode.dk | ||||||||
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