net.sf.sasl.language.placeholder.aop.interpreter
Class PlaceholderResolverSymbolTable

java.lang.Object
  net.sf.sasl.language.placeholder.aop.interpreter.PlaceholderResolverSymbolTable

All Implemented Interfaces:

IPlaceholderResolverSymbolTable

public class PlaceholderResolverSymbolTable
extends Object
implements IPlaceholderResolverSymbolTable

Default implementation of IPlaceholderResolverSymbolTable. Uses a hash map for look up operations.

Since:

0.0.2 (sasl-common-aspect-library)

Author:

Philipp Förmer

Constructor Summary

PlaceholderResolverSymbolTable()
Creates an empty symbol table.

PlaceholderResolverSymbolTable(List<IPlaceholderResolver> placeholderResolverList)
Initializes the symbol table with the given list of resolvers.

Method Summary

boolean	isEmpty() Returns true, if the symbol table is empty, false else.
IPlaceholderResolver	lookUp(String placeholderName) Looks up a for a resolver than can resolve the given placeholder.
int	size() Returns the number of entries in the table.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PlaceholderResolverSymbolTable

public PlaceholderResolverSymbolTable()

Creates an empty symbol table.

Since:

0.0.2 (sasl-common-aspect-library)

PlaceholderResolverSymbolTable

public PlaceholderResolverSymbolTable(List<IPlaceholderResolver> placeholderResolverList)
                               throws IllegalArgumentException

Initializes the symbol table with the given list of resolvers.

Parameters:

placeholderResolverList - non null

Throws:

IllegalArgumentException - if placeholderResolverList is null.

Since:

0.0.2 (sasl-common-aspect-library)

Method Detail

lookUp

public IPlaceholderResolver lookUp(String placeholderName)

Description copied from interface: IPlaceholderResolverSymbolTable

Looks up a for a resolver than can resolve the given placeholder. Returns null, if there exists no such.

Specified by:

lookUp in interface IPlaceholderResolverSymbolTable

Parameters:

placeholderName - non null.

Returns:

null or non null

Since:

0.0.2 (sasl-common-aspect-library)

See Also:

net.sf.sasl.language.placeholder.interpreter.IPlaceholderResolverSymbolTable#lookUp(java.lang.String)

isEmpty

public boolean isEmpty()

Description copied from interface: IPlaceholderResolverSymbolTable

Returns true, if the symbol table is empty, false else.

Specified by:

isEmpty in interface IPlaceholderResolverSymbolTable

Returns:

true or false.

Since:

0.0.2 (sasl-common-aspect-library)

See Also:

net.sf.sasl.language.placeholder.interpreter.IPlaceholderResolverSymbolTable#isEmpty()

size

public int size()

Description copied from interface: IPlaceholderResolverSymbolTable

Returns the number of entries in the table.

Specified by:

size in interface IPlaceholderResolverSymbolTable

Returns:

positive integer value.

Since:

0.0.2 (sasl-common-aspect-library)

See Also:

net.sf.sasl.language.placeholder.interpreter.IPlaceholderResolverSymbolTable#size()