Examples of org.mvel2.integration.VariableResolver

org.mvel2.integration.VariableResolver
A variable resolver is responsible for physically accessing a variable, for either read or write. VariableResolver's are obtained via a {@link org.mvel2.integration.VariableResolverFactory}.

        this.localVariables.put(identifier,
                value);
    }
 
    public VariableResolver createVariable(String name, Object value) {
        VariableResolver vr;
 
        try {
            vr = getVariableResolver(name);
        }
        catch (UnresolveablePropertyException e) {
            vr = null;
        }
 
        if (vr != null && vr.getType() != null) {
            throw new CompileException("variable already defined within scope: " + vr.getType() + " " + name);
        }
        else {
            return addResolver(name, new LocalVariableResolver(this, name), value);
        }
    }

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    public VariableResolver createVariable(String name,
                                           Object value,
                                           Class type) {
 
 
        VariableResolver vr;
 
        try {
            vr = getVariableResolver(name);
        }
        catch (UnresolveablePropertyException e) {
            vr = null;
        }
 
        if (vr != null && vr.getType() != null) {
            throw new CompileException("variable already defined within scope: " + vr.getType() + " " + name);
        }
        else {
            return addResolver(name, new LocalVariableResolver(this, name, type), value);
        }

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        if ( "active".equals( name ) ) {
            return item.isActive();
        }
        
        // FIXME hack as MVEL seems to be ignoring indexed variables
        VariableResolver vr = variableFactory.getNextFactory().getVariableResolver( name );
        if ( vr != null ) {
            return vr.getValue();
        }
                
        Declaration declr = item.getTerminalNode().getSubRule().getOuterDeclarations().get( name );
        if ( declr != null ) {
            return declr.getValue( null, item.getTuple().get( declr ).getObject() );

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        this.localVariables.put(identifier,
                value);
    }
 
    public VariableResolver createVariable(String name, Object value) {
        VariableResolver vr;
 
        try {
            vr = getVariableResolver(name);
        }
        catch (UnresolveablePropertyException e) {
            vr = null;
        }
 
        if (vr != null && vr.getType() != null) {
            throw new CompileException("variable already defined within scope: " + vr.getType() + " " + name);
        }
        else {
            return addResolver(name, new LocalVariableResolver(this, name), value);
        }
    }

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    public VariableResolver createVariable(String name,
                                           Object value,
                                           Class type) {
 
 
        VariableResolver vr;
 
        try {
            vr = getVariableResolver(name);
        }
        catch (UnresolveablePropertyException e) {
            vr = null;
        }
 
        if (vr != null && vr.getType() != null) {
            throw new CompileException("variable already defined within scope: " + vr.getType() + " " + name);
        }
        else {
            return addResolver(name, new LocalVariableResolver(this, name, type), value);
        }

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            return indexedVariableResolvers[index];
        }


        public VariableResolver createVariable( String name,
                                                Object value ) {
            VariableResolver vr = getResolver( name );
            if ( vr != null ) {
                vr.setValue( value );
                return vr;
            } else {
                if ( nextFactory == null ) nextFactory = new MapVariableResolverFactory( new HashMap() );
                return nextFactory.createVariable( name,
                                                   value );

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        }


        public VariableResolver createVariable( String name,
                                                Object value,
                                                Class< ? > type ) {
            VariableResolver vr = getResolver( name );
            if ( vr != null ) {
                if ( vr.getType() != null ) {
                    throw new RuntimeException( "variable already defined within scope: " + vr.getType() + " " + name );
                } else {
                    vr.setValue( value );
                    return vr;
                }
            } else {
                if ( nextFactory == null ) nextFactory = new MapVariableResolverFactory( new HashMap() );
                return nextFactory.createVariable( name,

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                                                   type );
            }
        }


        public VariableResolver getVariableResolver( String name ) {
            VariableResolver vr = getResolver( name );
            if ( vr != null ) return vr;
            else if ( nextFactory != null ) {
                return nextFactory.getVariableResolver( name );
            }

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        this.localVariables.put(identifier,
                value);
    }
 
    public VariableResolver createVariable(String name, Object value) {
        VariableResolver vr;
 
        try {
            vr = getVariableResolver(name);
        }
        catch (UnresolveablePropertyException e) {
            vr = null;
        }
 
        if (vr != null && vr.getType() != null) {
            throw new CompileException("variable already defined within scope: " + vr.getType() + " " + name);
        }
        else {
            return addResolver(name, new LocalVariableResolver(this, name), value);
        }
    }

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    public VariableResolver createVariable(String name,
                                           Object value,
                                           Class type) {
 
 
        VariableResolver vr;
 
        try {
            vr = getVariableResolver(name);
        }
        catch (UnresolveablePropertyException e) {
            vr = null;
        }
 
        if (vr != null && vr.getType() != null) {
            throw new CompileException("variable already defined within scope: " + vr.getType() + " " + name);
        }
        else {
            return addResolver(name, new LocalVariableResolver(this, name, type), value);
        }

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